GKI (arm64) relevant 35 out of 230 changes, affecting 67 files +612/-427
ec9be081c5 Revert "mmc: sdhci: Disable SD card clock before changing parameters" [1 file, +2/-7]
0698a2eb7d Bluetooth: HCI: Set extended advertising data synchronously [2 files, +130/-113]
3672fe9d1e Bluetooth: hci_sync: revert some mesh modifications [1 file, +4/-12]
44bb1e13b4 Bluetooth: MGMT: set_mesh: update LE scan interval and window [1 file, +22/-0]
a99f80c88a Bluetooth: MGMT: mesh_send: check instances prior disabling advertising [1 file, +2/-1]
5581e694d3 usb: typec: altmodes/displayport: do not index invalid pin_assignments [2 files, +2/-1]
b1abc5ab47 scsi: sd: Fix VPD page 0xb7 length check [1 file, +1/-1]
381c1c1219 Bluetooth: Prevent unintended pause by checking if advertising is active [1 file, +4/-0]
f0fee863a7 nvme: Fix incorrect cdw15 value in passthru error logging [1 file, +1/-1]
50c86c0945 netfs: Fix i_size updating [2 files, +8/-2]
a553afd91f net/sched: Always pass notifications when child class becomes empty [1 file, +5/-14]
d78f79a2c1 spinlock: extend guard with spinlock_bh variants [1 file, +13/-0]
0cc4721a71 sched/fair: Rename h_nr_running into h_nr_queued [5 files, +53/-53]
a2562bdd35 sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE [1 file, +11/-2]
5833026221 f2fs: decrease spare area for pinned files for zoned devices [3 files, +5/-2]
8912b139a8 f2fs: zone: fix to calculate first_zoned_segno correctly [4 files, +69/-20]
c5474a7b04 bpf: use common instruction history across all states [2 files, +63/-63]
4265682c29 bpf: Do not include stack ptr register in precision backtracking bookkeeping [2 files, +24/-6]
e0fefe9bc0 netfs: Fix oops in write-retry from mis-resetting the subreq iterator [1 file, +3/-2]
acf9ab15ec selinux: change security_compute_sid to return the ssid or tsid on match [1 file, +11/-5]
42c5a4b47d rcu: Return early if callback is not specified [1 file, +4/-0]
e036efbe58 add a string-to-qstr constructor [10 files, +13/-23]
f94c422157 fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass [3 files, +21/-13]
8caccd2eac usb: xhci: Skip xhci_reset in xhci_resume if xhci is being removed [1 file, +4/-1]
9f75893189 Revert "usb: xhci: Implement xhci_handshake_check_state() helper" [3 files, +3/-30]
fbebc2254a usb: xhci: quirk for data loss in ISOC transfers [3 files, +30/-0]
195597e0be xhci: Disable stream for xHC controller with XHCI_BROKEN_STREAMS [1 file, +2/-1]
dbdd2a2320 Input: xpad - support Acer NGR 200 Controller [1 file, +2/-0]
3b1407caac usb: dwc3: Abort suspend on soft disconnect failure [2 files, +16/-15]
7cb8750160 usb: acpi: fix device link removal [3 files, +8/-1]
c745744a82 dma-buf: fix timeout handling in dma_resv_wait_timeout v2 [1 file, +7/-5]
ccdc472b4d Logitech C-270 even more broken [1 file, +2/-1]
c782f98eef usb: typec: displayport: Fix potential deadlock [1 file, +1/-2]
ead91de35d mm/vmalloc: fix data race in show_numa_info() [1 file, +35/-28]
4c443046d8 mm: userfaultfd: fix race of userfaultfd_move and swap cache [1 file, +31/-2]
Changes in 6.12.37
rtc: pcf2127: add missing semicolon after statement
rtc: pcf2127: fix SPI command byte for PCF2131
rtc: cmos: use spin_lock_irqsave in cmos_interrupt
virtio-net: xsk: rx: fix the frame's length check
virtio-net: ensure the received length does not exceed allocated size
s390/pci: Fix stale function handles in error handling
s390/pci: Do not try re-enabling load/store if device is disabled
net: txgbe: request MISC IRQ in ndo_open
vsock/vmci: Clear the vmci transport packet properly when initializing it
net: libwx: fix the incorrect display of the queue number
mmc: sdhci: Add a helper function for dump register in dynamic debug mode
Revert "mmc: sdhci: Disable SD card clock before changing parameters"
mmc: core: sd: Apply BROKEN_SD_DISCARD quirk earlier
Bluetooth: HCI: Set extended advertising data synchronously
Bluetooth: hci_sync: revert some mesh modifications
Bluetooth: MGMT: set_mesh: update LE scan interval and window
Bluetooth: MGMT: mesh_send: check instances prior disabling advertising
iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods
Input: cs40l50-vibra - fix potential NULL dereference in cs40l50_upload_owt()
usb: typec: altmodes/displayport: do not index invalid pin_assignments
mtk-sd: Fix a pagefault in dma_unmap_sg() for not prepared data
mtk-sd: Prevent memory corruption from DMA map failure
mtk-sd: reset host->mrq on prepare_data() error
drm/v3d: Disable interrupts before resetting the GPU
firmware: arm_ffa: Fix memory leak by freeing notifier callback node
firmware: arm_ffa: Move memory allocation outside the mutex locking
firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context
arm64: dts: apple: t8103: Fix PCIe BCM4377 nodename
platform/mellanox: mlxbf-tmfifo: fix vring_desc.len assignment
RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling
RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert
nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails.
NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN
scsi: qla2xxx: Fix DMA mapping test in qla24xx_get_port_database()
scsi: qla4xxx: Fix missing DMA mapping error in qla4xxx_alloc_pdu()
scsi: sd: Fix VPD page 0xb7 length check
scsi: ufs: core: Fix spelling of a sysfs attribute name
RDMA/mlx5: Fix HW counters query for non-representor devices
RDMA/mlx5: Fix CC counters query for MPV
RDMA/mlx5: Fix vport loopback for MPV device
platform/mellanox: mlxbf-pmc: Fix duplicate event ID for CACHE_DATA1
platform/mellanox: nvsw-sn2201: Fix bus number in adapter error message
Bluetooth: Prevent unintended pause by checking if advertising is active
btrfs: fix missing error handling when searching for inode refs during log replay
btrfs: fix iteration of extrefs during log replay
btrfs: return a btrfs_inode from btrfs_iget_logging()
btrfs: return a btrfs_inode from read_one_inode()
btrfs: fix invalid inode pointer dereferences during log replay
btrfs: fix inode lookup error handling during log replay
btrfs: record new subvolume in parent dir earlier to avoid dir logging races
btrfs: propagate last_unlink_trans earlier when doing a rmdir
btrfs: use btrfs_record_snapshot_destroy() during rmdir
ethernet: atl1: Add missing DMA mapping error checks and count errors
dpaa2-eth: fix xdp_rxq_info leak
drm/exynos: fimd: Guard display clock control with runtime PM calls
spi: spi-fsl-dspi: Clear completion counter before initiating transfer
drm/i915/selftests: Change mock_request() to return error pointers
nvme: Fix incorrect cdw15 value in passthru error logging
nvmet: fix memory leak of bio integrity
platform/x86: dell-wmi-sysman: Fix WMI data block retrieval in sysfs callbacks
platform/x86: hp-bioscfg: Directly use firmware_attributes_class
platform/x86: hp-bioscfg: Fix class device unregistration
platform/x86: firmware_attributes_class: Move include linux/device/class.h
platform/x86: firmware_attributes_class: Simplify API
platform/x86: think-lmi: Directly use firmware_attributes_class
platform/x86: think-lmi: Fix class device unregistration
platform/x86: dell-sysman: Directly use firmware_attributes_class
platform/x86: dell-wmi-sysman: Fix class device unregistration
platform/mellanox: mlxreg-lc: Fix logic error in power state check
drm/bridge: aux-hpd-bridge: fix assignment of the of_node
smb: client: fix warning when reconnecting channel
net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect
drm/i915/gt: Fix timeline left held on VMA alloc error
drm/i915/gsc: mei interrupt top half should be in irq disabled context
idpf: return 0 size for RSS key if not supported
idpf: convert control queue mutex to a spinlock
igc: disable L1.2 PCI-E link substate to avoid performance issue
smb: client: set missing retry flag in smb2_writev_callback()
smb: client: set missing retry flag in cifs_readv_callback()
smb: client: set missing retry flag in cifs_writev_callback()
netfs: Fix i_size updating
lib: test_objagg: Set error message in check_expect_hints_stats()
amd-xgbe: align CL37 AN sequence as per databook
enic: fix incorrect MTU comparison in enic_change_mtu()
rose: fix dangling neighbour pointers in rose_rt_device_down()
nui: Fix dma_mapping_error() check
net/sched: Always pass notifications when child class becomes empty
amd-xgbe: do not double read link status
smb: client: fix race condition in negotiate timeout by using more precise timing
arm64: dts: rockchip: fix internal USB hub instability on RK3399 Puma
crypto: iaa - Remove dst_null support
crypto: iaa - Do not clobber req->base.data
spinlock: extend guard with spinlock_bh variants
crypto: zynqmp-sha - Add locking
kunit: qemu_configs: sparc: use Zilog console
kunit: qemu_configs: sparc: Explicitly enable CONFIG_SPARC32=y
kunit: qemu_configs: Disable faulting tests on 32-bit SPARC
gfs2: Initialize gl_no_formal_ino earlier
gfs2: Rename GIF_{DEFERRED -> DEFER}_DELETE
gfs2: Rename dinode_demise to evict_behavior
gfs2: Prevent inode creation race
gfs2: Decode missing glock flags in tracepoints
gfs2: Add GLF_PENDING_REPLY flag
gfs2: Replace GIF_DEFER_DELETE with GLF_DEFER_DELETE
gfs2: Move gfs2_dinode_dealloc
gfs2: Move GIF_ALLOC_FAILED check out of gfs2_ea_dealloc
gfs2: deallocate inodes in gfs2_create_inode
btrfs: prepare btrfs_page_mkwrite() for large folios
btrfs: fix wrong start offset for delalloc space release during mmap write
sched/fair: Rename h_nr_running into h_nr_queued
sched/fair: Add new cfs_rq.h_nr_runnable
sched/fair: Fixup wake_up_sync() vs DELAYED_DEQUEUE
gfs2: Move gfs2_trans_add_databufs
gfs2: Don't start unnecessary transactions during log flush
ASoC: tas2764: Extend driver to SN012776
ASoC: tas2764: Reinit cache on part reset
ACPI: thermal: Fix stale comment regarding trip points
ACPI: thermal: Execute _SCP before reading trip points
bonding: Mark active offloaded xfrm_states
wifi: ath12k: fix skb_ext_desc leak in ath12k_dp_tx() error path
wifi: ath12k: Handle error cases during extended skb allocation
wifi: ath12k: fix wrong handling of CCMP256 and GCMP ciphers
RDMA/rxe: Fix "trying to register non-static key in rxe_qp_do_cleanup" bug
iommu: ipmmu-vmsa: avoid Wformat-security warning
f2fs: decrease spare area for pinned files for zoned devices
f2fs: zone: introduce first_zoned_segno in f2fs_sb_info
f2fs: zone: fix to calculate first_zoned_segno correctly
scsi: lpfc: Remove NLP_RELEASE_RPI flag from nodelist structure
scsi: lpfc: Change lpfc_nodelist nlp_flag member into a bitmask
scsi: lpfc: Avoid potential ndlp use-after-free in dev_loss_tmo_callbk
hisi_acc_vfio_pci: bugfix cache write-back issue
hisi_acc_vfio_pci: bugfix the problem of uninstalling driver
bpf: use common instruction history across all states
bpf: Do not include stack ptr register in precision backtracking bookkeeping
arm64: dts: qcom: sm8650: change labels to lower-case
arm64: dts: qcom: sm8650: Fix domain-idle-state for CPU2
arm64: dts: renesas: Use interrupts-extended for Ethernet PHYs
arm64: dts: renesas: Factor out White Hawk Single board support
arm64: dts: renesas: white-hawk-single: Improve Ethernet TSN description
arm64: dts: qcom: sm8650: add the missing l2 cache node
ubsan: integer-overflow: depend on BROKEN to keep this out of CI
remoteproc: k3: Call of_node_put(rmem_np) only once in three functions
remoteproc: k3-r5: Add devm action to release reserved memory
remoteproc: k3-r5: Use devm_kcalloc() helper
remoteproc: k3-r5: Use devm_ioremap_wc() helper
remoteproc: k3-r5: Use devm_rproc_add() helper
remoteproc: k3-r5: Refactor sequential core power up/down operations
netfs: Fix oops in write-retry from mis-resetting the subreq iterator
mfd: exynos-lpass: Fix another error handling path in exynos_lpass_probe()
drm/xe: Fix DSB buffer coherency
drm/xe: Move DSB l2 flush to a more sensible place
drm/xe: add interface to request physical alignment for buffer objects
drm/xe: Allow bo mapping on multiple ggtts
drm/xe: move DPT l2 flush to a more sensible place
drm/xe: Replace double space with single space after comma
drm/xe/guc: Dead CT helper
drm/xe/guc: Explicitly exit CT safe mode on unwind
selinux: change security_compute_sid to return the ssid or tsid on match
drm/simpledrm: Do not upcast in release helpers
drm/amdgpu: VCN v5_0_1 to prevent FW checking RB during DPG pause
drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read
drm/amdgpu: add kicker fws loading for gfx11/smu13/psp13
drm/amd/display: Add more checks for DSC / HUBP ONO guarantees
arm64: dts: qcom: x1e80100-crd: mark l12b and l15b always-on
drm/amdgpu/mes: add missing locking in helper functions
sched_ext: Make scx_group_set_weight() always update tg->scx.weight
scsi: lpfc: Restore clearing of NLP_UNREG_INP in ndlp->nlp_flag
drm/msm: Fix a fence leak in submit error path
drm/msm: Fix another leak in the submit error path
ALSA: sb: Don't allow changing the DMA mode during operations
ALSA: sb: Force to disable DMAs once when DMA mode is changed
ata: libata-acpi: Do not assume 40 wire cable if no devices are enabled
ata: pata_cs5536: fix build on 32-bit UML
ASoC: amd: yc: Add quirk for MSI Bravo 17 D7VF internal mic
platform/x86/amd/pmc: Add PCSpecialist Lafite Pro V 14M to 8042 quirks list
genirq/irq_sim: Initialize work context pointers properly
powerpc: Fix struct termio related ioctl macros
ASoC: amd: yc: update quirk data for HP Victus
regulator: fan53555: add enable_time support and soft-start times
scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port()
aoe: defer rexmit timer downdev work to workqueue
wifi: mac80211: drop invalid source address OCB frames
wifi: ath6kl: remove WARN on bad firmware input
ACPICA: Refuse to evaluate a method if arguments are missing
mtd: spinand: fix memory leak of ECC engine conf
rcu: Return early if callback is not specified
add a string-to-qstr constructor
module: Provide EXPORT_SYMBOL_GPL_FOR_MODULES() helper
fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
RDMA/mlx5: Fix cache entry update on dereg error
IB/mlx5: Fix potential deadlock in MR deregistration
drm/xe/bmg: Update Wa_22019338487
drm/xe: Allow dropping kunit dependency as built-in
NFSv4/flexfiles: Fix handling of NFS level errors in I/O
usb: xhci: Skip xhci_reset in xhci_resume if xhci is being removed
Revert "usb: xhci: Implement xhci_handshake_check_state() helper"
usb: xhci: quirk for data loss in ISOC transfers
xhci: dbctty: disable ECHO flag by default
xhci: dbc: Flush queued requests before stopping dbc
xhci: Disable stream for xHC controller with XHCI_BROKEN_STREAMS
Input: xpad - support Acer NGR 200 Controller
Input: iqs7222 - explicitly define number of external channels
usb: cdnsp: do not disable slot for disabled slot
usb: cdnsp: Fix issue with CV Bad Descriptor test
usb: dwc3: Abort suspend on soft disconnect failure
usb: chipidea: udc: disconnect/reconnect from host when do suspend/resume
usb: acpi: fix device link removal
smb: client: fix readdir returning wrong type with POSIX extensions
cifs: all initializations for tcon should happen in tcon_info_alloc
dma-buf: fix timeout handling in dma_resv_wait_timeout v2
i2c/designware: Fix an initialization issue
Logitech C-270 even more broken
optee: ffa: fix sleep in atomic context
iommu/rockchip: prevent iommus dead loop when two masters share one IOMMU
powercap: intel_rapl: Do not change CLAMPING bit if ENABLE bit cannot be changed
riscv: cpu_ops_sbi: Use static array for boot_data
platform/x86: think-lmi: Create ksets consecutively
platform/x86: think-lmi: Fix kobject cleanup
platform/x86: think-lmi: Fix sysfs group cleanup
usb: typec: displayport: Fix potential deadlock
powerpc/kernel: Fix ppc_save_regs inclusion in build
mm/vmalloc: fix data race in show_numa_info()
mm: userfaultfd: fix race of userfaultfd_move and swap cache
x86/bugs: Rename MDS machinery to something more generic
x86/bugs: Add a Transient Scheduler Attacks mitigation
KVM: SVM: Advertise TSA CPUID bits to guests
x86/microcode/AMD: Add TSA microcode SHAs
x86/process: Move the buffer clearing before MONITOR
Linux 6.12.37
Change-Id: If1d8d0f83e11df1540bebaf0fb136fe340f25dcb
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 707f853d7fa3ce323a6875487890c213e34d81a0 ]
Helper macro to more easily limit the export of a symbol to a given
list of modules.
Eg:
EXPORT_SYMBOL_GPL_FOR_MODULES(preempt_notifier_inc, "kvm");
will limit the use of said function to kvm.ko, any other module trying
to use this symbol will refure to load (and get modpost build
failures).
Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Requested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Stable-dep-of: cbe4134ea4bc ("fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass")
Signed-off-by: Sasha Levin <sashal@kernel.org>
GKI (arm64) relevant 102 out of 584 changes, affecting 165 files +1491/-594
4338831b83 coredump: Do not lock during 'comm' reporting [1 file, +2/-2]
784908004f fs: fix proc_handler for sysctl_nr_open [1 file, +1/-1]
f83f330fc4 block: retry call probe after request_module in blk_request_module [1 file, +17/-5]
e278c7ff75 block: check BLK_FEAT_POLL under q_usage_count [2 files, +22/-12]
d313ff5308 block: don't update BLK_FEAT_POLL in __blk_mq_update_nr_hw_queues [4 files, +22/-26]
4621771de1 nvme: Add error check for xa_store in nvme_get_effects_log [1 file, +6/-2]
e8c390a9a5 nvme: Add error path for xa_store in nvme_init_effects [1 file, +22/-4]
68303b5d38 select: Fix unbalanced user_access_end() [1 file, +2/-2]
1e8c151fb2 nvme: fix bogus kzalloc() return check in nvme_init_effects_log() [1 file, +1/-1]
e4b64d34a4 sched/fair: Untangle NEXT_BUDDY and pick_next_task() [2 files, +11/-2]
5bb4039f77 sched/fair: Fix value reported by hot tasks pulled in /proc/schedstat [2 files, +14/-4]
fd2818c5e0 sched: Split out __schedule() deactivate task logic into a helper [1 file, +40/-27]
3f1215588b sched: psi: pass enqueue/dequeue flags to psi callbacks directly [3 files, +53/-44]
10a7d3e734 psi: Fix race when task wakes up before psi_sched_switch() adjusts flags [2 files, +7/-3]
ebaeca33d3 HID: core: Fix assumption that Resolution Multipliers must be in Logical Collections [1 file, +2/-0]
7d68c20638 OPP: add index check to assert to avoid buffer overflow in _read_freq() [1 file, +27/-15]
ff2def2518 OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized [1 file, +13/-2]
82bd38bd54 net_sched: sch_sfq: handle bigger packets [1 file, +13/-26]
7d8947f215 net_sched: sch_sfq: don't allow 1 packet limit [1 file, +4/-0]
e561d1a2ba clk: fix an OF node reference leak in of_clk_get_parent_name() [1 file, +3/-1]
bd1bb30b9f HID: multitouch: fix support for Goodix PID 0x01e9 [1 file, +1/-1]
d474a73856 inetpeer: remove create argument of inet_getpeer_v[46]() [7 files, +11/-12]
dc4fd82dad inetpeer: remove create argument of inet_getpeer() [2 files, +5/-13]
4622e45097 inetpeer: update inetpeer timestamp in inet_getpeer() [1 file, +4/-8]
9345b588f8 inetpeer: do not get a refcount in inet_getpeer() [7 files, +32/-29]
4f8344fce9 udp: Deal with race between UDP socket address change and rehash [2 files, +106/-0]
a7175e363a dt-bindings: clock: imx93: Drop IMX93_CLK_END macro definition [1 file, +0/-1]
036f2f5109 dt-bindings: clock: imx93: Add SPDIF IPG clk [1 file, +1/-0]
5078123528 regulator: of: Implement the unwind path of of_regulator_match() [1 file, +13/-1]
8937f5e38a ax25: rcu protect dev->ax25_ptr [7 files, +35/-20]
3d62a5037f OPP: OF: Fix an OF node leak in _opp_add_static_v2() [1 file, +3/-1]
a3bdd14936 HID: fix generic desktop D-Pad controls [2 files, +18/-20]
a8251d3a4c mfd: syscon: Fix race in device_node_get_regmap() [1 file, +10/-9]
984e7d2aa0 wifi: mac80211: Fix common size calculation for ML element [1 file, +3/-8]
df2f2d9199 Bluetooth: btbcm: Fix NULL deref in btbcm_get_board_name() [1 file, +3/-0]
f98ccd7d77 dev: Acquire netdev_rename_lock before restoring dev->name in dev_change_name(). [1 file, +2/-0]
33e2168788 net: let net.core.dev_weight always be non-zero [1 file, +4/-1]
b382ab9b88 net: avoid race between device unregistration and ethnl ops [1 file, +1/-1]
73c7e1d689 net: sched: Disallow replacing of child qdisc from one parent to another [1 file, +4/-0]
d7fe7e1bbe netfilter: nf_tables: fix set size with rbtree backend [3 files, +96/-2]
5213efec90 net: sched: refine software bypass handling in tc_run [8 files, +55/-45]
a0753466f0 tcp_cubic: fix incorrect HyStart round start detection [1 file, +5/-3]
b7de862bda crypto: api - Fix boot-up self-test race [1 file, +2/-2]
b002750000 bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT [1 file, +6/-2]
eb2e58484b rhashtable: Fix potential deadlock by moving schedule_work outside lock [1 file, +6/-4]
8e7d29b698 bpf: Use refcount_t instead of atomic_t for mmap_count [1 file, +4/-4]
b777b14c2a bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing [3 files, +26/-5]
78b9778349 bpf: Send signals asynchronously if !preemptible [1 file, +1/-1]
0e272fe6a0 bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write [1 file, +1/-1]
f939008a52 rhashtable: Fix rhashtable_try_insert test [1 file, +7/-5]
33e47d9573 bpf: Cancel the running bpf_timer through kworker for PREEMPT_RT [1 file, +16/-2]
6cffdf4838 of: property: Avoiding using uninitialized variable @imaplen in parse_interrupt_map() [1 file, +1/-1]
92ed1efb6a of: reserved-memory: Do not make kmemleak ignore freed address [1 file, +2/-1]
9a0fe62f93 of: reserved_mem: Restructure how the reserved memory regions are processed [3 files, +122/-54]
e61977c714 of/fdt: Restore possibility to use both ACPI and FDT from bootloader [1 file, +1/-9]
45e1246e5c PCI: endpoint: Destroy the EPC device in devm_pci_epc_destroy() [1 file, +1/-1]
58465dfc42 media: uvcvideo: Propagate buf->error to userspace [1 file, +2/-1]
a2c80a1881 PCI: qcom: Update ICC and OPP values after Link Up event [1 file, +2/-0]
a665fab63d PCI: dwc: Always stop link in the dw_pcie_suspend_noirq [1 file, +1/-0]
0e0ac81d51 scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails [1 file, +1/-0]
4896402780 erofs: fix potential return value overflow of z_erofs_shrink_scan() [1 file, +1/-2]
565611d101 module: Extend the preempt disabled section in dereference_symbol_descriptor(). [1 file, +1/-1]
fd41b2e9aa module: Don't fail module loading when setting ro_after_init section RO failed [1 file, +4/-3]
1614e75d1a driver core: class: Fix wild pointer dereferences in API class_dev_iter_next() [1 file, +8/-1]
b35a3edc7c serial: 8250: Adjust the timeout for FIFO mode [1 file, +26/-6]
87fdd4c447 xfrm: replay: Fix the update of replay_esn->oseq_hi for GSO [1 file, +6/-4]
2a64cff2aa xfrm: Add support for per cpu xfrm state handling. [6 files, +112/-22]
aa48a18fdb xfrm: Cache used outbound xfrm states at the policy. [3 files, +71/-0]
5e4334dc39 xfrm: Add an inbound percpu state cache. [6 files, +70/-7]
a16871c783 xfrm: state: fix out-of-bounds read during lookup [1 file, +70/-19]
6945701ca1 xfrm: delete intermediate secpath entry in packet offload mode [1 file, +13/-3]
24ac5b7524 regulator: core: Add missing newline character [1 file, +1/-1]
a099834a51 ipmr: do not call mr_mfc_uses_dev() for unres entries [1 file, +0/-3]
3b732c60a0 PM: hibernate: Add error handling for syscore_suspend() [1 file, +6/-1]
e468aace40 xfrm: Don't disable preemption while looking up cache state. [1 file, +1/-3]
3e44707da8 ptp: Properly handle compat ioctls [1 file, +4/-0]
a68d7a9fb8 ethtool: Fix set RXNFC command with symmetric RSS hash [1 file, +1/-1]
a06bb37d65 vsock: Allow retrying on connect() failure [1 file, +5/-0]
1dd823a46e tcp: correct handling of extreme memory squeeze [1 file, +6/-3]
557707906d net: xdp: Disallow attaching device-bound programs in generic mode [1 file, +4/-0]
a23834b782 genksyms: fix memory leak when the same symbol is added from source [2 files, +15/-2]
52f0a28e17 genksyms: fix memory leak when the same symbol is read from *.symref file [3 files, +9/-5]
206d8e0242 io_uring/uring_cmd: use cached cmd_op in io_uring_cmd_sock() [1 file, +1/-1]
6e26ca1818 kconfig: fix file name in warnings when loading KCONFIG_DEFCONFIG_LIST [1 file, +4/-2]
e4e8ed67e0 kconfig: fix memory leak in sym_warn_unmet_dep() [1 file, +1/-0]
00d1943fe4 f2fs: Introduce linear search for dentries [3 files, +45/-19]
e0216c39b4 ALSA: usb-audio: Add delay quirk for iBasso DC07 Pro [1 file, +2/-0]
f395b7efce net: usb: rtl8150: enable basic endpoint checking [1 file, +22/-0]
ae069cd2ba usb: xhci: Fix NULL pointer dereference on certain command aborts [1 file, +2/-1]
ebba1bebf0 usb: dwc3: core: Defer the probe until USB power supply ready [1 file, +21/-9]
01c74aeac2 usb: dwc3: Skip resume if pm_runtime_set_active() fails [1 file, +4/-1]
ce5c91a1b2 usb: typec: tcpm: set SRC_SEND_CAPABILITIES timeout to PD_T_SENDER_RESPONSE [1 file, +1/-1]
15b50cbc6f usb: typec: tcpci: Prevent Sink disconnection before vPpsShutdown in SPR PPS [3 files, +16/-8]
f2013d19b7 remoteproc: core: Fix ida_free call while not allocated [1 file, +7/-7]
d1f8e69eec media: uvcvideo: Fix double free in error path [1 file, +1/-0]
8de4e5a922 of: reserved-memory: Warn for missing static reserved memory regions [1 file, +5/-0]
698943070e dma-mapping: save base/size instead of pointer to shared DMA pool [1 file, +8/-6]
78b366aa0e xfrm: Add error handling when nla_put_u32() returns an error [1 file, +4/-1]
364d7e7f30 xfrm: Fix acquire state insertion. [1 file, +1/-0]
1cf2177959 ethtool: Fix access to uninitialized fields in set RXNFC command [1 file, +2/-1]
c3a3741db8 memcg: fix soft lockup in the OOM process [2 files, +13/-2]
333f128224 ethtool: ntuple: fix rss + ring_cookie check [1 file, +1/-1]
Changes in 6.12.13
coredump: Do not lock during 'comm' reporting
powerpc/book3s64/hugetlb: Fix disabling hugetlb when fadump is active
dlm: fix removal of rsb struct that is master and dir record
dlm: fix srcu_read_lock() return type to int
afs: Fix EEXIST error returned from afs_rmdir() to be ENOTEMPTY
afs: Fix directory format encoding struct
afs: Fix cleanup of immediately failed async calls
fs: fix proc_handler for sysctl_nr_open
block: copy back bounce buffer to user-space correctly in case of split
block: retry call probe after request_module in blk_request_module
ps3disk: Do not use dev->bounce_size before it is set
nbd: don't allow reconnect after disconnect
pstore/blk: trivial typo fixes
block: check BLK_FEAT_POLL under q_usage_count
block: don't update BLK_FEAT_POLL in __blk_mq_update_nr_hw_queues
nvme-tcp: Fix I/O queue cpu spreading for multiple controllers
nvme: Add error check for xa_store in nvme_get_effects_log
powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
selftests/powerpc: Fix argument order to timer_sub()
nvme: Add error path for xa_store in nvme_init_effects
btrfs: improve the warning and error message for btrfs_remove_qgroup()
partitions: ldm: remove the initial kernel-doc notation
btrfs: subpage: fix the bitmap dump of the locked flags
select: Fix unbalanced user_access_end()
nvme: fix bogus kzalloc() return check in nvme_init_effects_log()
afs: Fix the fallback handling for the YFS.RemoveFile2 RPC call
perf/core: Save raw sample data conditionally based on sample type
sched/fair: Untangle NEXT_BUDDY and pick_next_task()
sched/fair: Fix value reported by hot tasks pulled in /proc/schedstat
sched: Fix race between yield_to() and try_to_wake_up()
x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD
x86/topology: Use x86_sched_itmt_flags for PKG domain unconditionally
sched: Split out __schedule() deactivate task logic into a helper
sched: psi: pass enqueue/dequeue flags to psi callbacks directly
psi: Fix race when task wakes up before psi_sched_switch() adjusts flags
drm/v3d: Fix performance counter source settings on V3D 7.x
drm/rockchip: vop2: fix rk3588 dp+dsi maxclk verification
drm/msm/dp: set safe_to_exit_level before printing it
drm/msm/hdmi: simplify code in pll_get_integloop_gain
drm/etnaviv: Fix page property being used for non writecombine buffers
HID: core: Fix assumption that Resolution Multipliers must be in Logical Collections
drm/amd/pm: Fix an error handling path in vega10_enable_se_edc_force_stall_config()
drm/amdgpu: Fix potential NULL pointer dereference in atomctrl_get_smc_sclk_range_table
drm/rockchip: vop2: Fix cluster windows alpha ctrl regsiters offset
drm/rockchip: vop2: Fix the mixer alpha setup for layer 0
drm/panthor: Preserve the result returned by panthor_fw_resume()
drm/rockchip: vop2: Fix the windows switch between different layers
printk: Defer legacy printing when holding printk_cpu_sync
drm/connector: Allow clearing HDMI infoframes
drm/rockchip: vop2: Set AXI id for rk3588
drm/rockchip: vop2: Setup delay cycle for Esmart2/3
drm/rockchip: vop2: Check linear format for Cluster windows on rk3566/8
drm/rockchip: vop2: Add check for 32 bpp format for rk3588
drm/rockchip: vop2: include rockchip_drm_drv.h
drm/amdgpu/vcn: reset fw_shared under SRIOV
OPP: add index check to assert to avoid buffer overflow in _read_freq()
OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized
drm/msm/dpu: provide DSPP and correct LM config for SDM670
drm/msm/dpu: link DSPP_2/_3 blocks on SM8150
drm/msm/dpu: link DSPP_2/_3 blocks on SC8180X
drm/msm/dpu: link DSPP_2/_3 blocks on SM8250
drm/msm/dpu: link DSPP_2/_3 blocks on SM8350
drm/msm/dpu: link DSPP_2/_3 blocks on SM8550
drm/msm/dpu: link DSPP_2/_3 blocks on SM8650
drm/msm/dpu: link DSPP_2/_3 blocks on X1E80100
drm/msm: Check return value of of_dma_configure()
drm/msm: don't clean up priv->kms prematurely
drm/msm/mdp4: correct LCDC regulator name
drm/bridge: it6505: Change definition of AUX_FIFO_MAX_SIZE
drm/amdgpu: tear down ttm range manager for doorbell in amdgpu_ttm_fini()
Revert "drm/amdgpu/gfx9: put queue resets behind a debug option"
drm/amdgpu: fix gpu recovery disable with per queue reset
genirq: Make handle_enforce_irqctx() unconditionally available
ipmi: ipmb: Add check devm_kasprintf() returned value
wifi: ath11k: Fix unexpected return buffer manager error for WCN6750/WCN6855
wifi: rtlwifi: rtl8821ae: phy: restore removed code to fix infinite loop
wifi: rtlwifi: do not complete firmware loading needlessly
wifi: rtlwifi: rtl8192se: rise completion of firmware loading as last step
wifi: rtlwifi: wait for firmware loading before releasing memory
wifi: rtlwifi: fix init_sw_vars leak when probe fails
wifi: rtlwifi: usb: fix workqueue leak when probe fails
wifi: wcn36xx: fix channel survey memory allocation size
clk: renesas: cpg-mssr: Fix 'soc' node handling in cpg_mssr_reserved_init()
wifi: cfg80211: tests: Fix potential NULL dereference in test_cfg80211_parse_colocated_ap()
selftests/bpf: Actuate tx_metadata_len in xdp_hw_metadata
net_sched: sch_sfq: handle bigger packets
net_sched: sch_sfq: don't allow 1 packet limit
spi: zynq-qspi: Add check for clk_enable()
rxrpc: Fix handling of received connection abort
dt-bindings: mmc: controller: clarify the address-cells description
clk: fix an OF node reference leak in of_clk_get_parent_name()
dt-bindings: leds: class-multicolor: Fix path to color definitions
wifi: rtlwifi: remove unused check_buddy_priv
wifi: rtlwifi: destroy workqueue at rtl_deinit_core
wifi: rtlwifi: fix memory leaks and invalid access at probe error path
wifi: rtlwifi: pci: wait for firmware loading before releasing memory
HID: multitouch: fix support for Goodix PID 0x01e9
regulator: dt-bindings: mt6315: Drop regulator-compatible property
wifi: brcmfmac: add missing header include for brcmf_dbg
module: Convert default symbol namespace to string literal
hwmon: (nct6775): Actually make use of the HWMON_NCT6775 symbol namespace
ACPI: fan: cleanup resources in the error path of .probe()
cpupower: fix TSC MHz calculation
dt-bindings: mfd: bd71815: Fix rsense and typos
leds: netxbig: Fix an OF node reference leak in netxbig_leds_get_of_pdata()
inetpeer: remove create argument of inet_getpeer_v[46]()
inetpeer: remove create argument of inet_getpeer()
inetpeer: update inetpeer timestamp in inet_getpeer()
inetpeer: do not get a refcount in inet_getpeer()
pwm: stm32-lp: Add check for clk_enable()
cpufreq: schedutil: Fix superfluous updates caused by need_freq_update
selftests: ktap_helpers: Fix uninitialized variable
ptr_ring: do not block hard interrupts in ptr_ring_resize_multiple()
net: airoha: Fix error path in airoha_probe()
gpio: pca953x: log an error when failing to get the reset GPIO
cpufreq: qcom: Fix qcom_cpufreq_hw_recalc_rate() to query LUT if LMh IRQ is not available
cpufreq: qcom: Implement clk_ops::determine_rate() for qcom_cpufreq* clocks
udp: Deal with race between UDP socket address change and rehash
clk: imx8mp: Fix clkout1/2 support
dt-bindings: clock: imx93: Drop IMX93_CLK_END macro definition
dt-bindings: clock: Add i.MX91 clock support
dt-bindings: clock: imx93: Add SPDIF IPG clk
clk: imx93: Move IMX93_CLK_END macro to clk driver
clk: imx: add i.MX91 clk
clk: imx93: Add IMX93_CLK_SPDIF_IPG clock
arm64: dts: imx93: Use IMX93_CLK_SPDIF_IPG as SPDIF IPG clock
clk: imx: Apply some clks only for i.MX93
clk: qcom: camcc-x1e80100: Set titan_top_gdsc as the parent GDSC of subordinate GDSCs
team: prevent adding a device which is already a team device lower
dt-bindings: clock: sunxi: Export PLL_VIDEO_2X and PLL_MIPI
clk: sunxi-ng: a64: drop redundant CLK_PLL_VIDEO0_2X and CLK_PLL_MIPI
clk: sunxi-ng: a64: stop force-selecting PLL-MIPI as TCON0 parent
regulator: of: Implement the unwind path of of_regulator_match()
ax25: rcu protect dev->ax25_ptr
net/mlx5: HWS, fix definer's HWS_SET32 macro for negative offset
OPP: OF: Fix an OF node leak in _opp_add_static_v2()
ipmi: ssif_bmc: Fix new request loss when bmc ready for a response
wifi: ath12k: fix tx power, max reg power update to firmware
clk: qcom: gcc-sdm845: Do not use shared clk_ops for QUPs
HID: hid-thrustmaster: Fix warning in thrustmaster_probe by adding endpoint check
HID: fix generic desktop D-Pad controls
leds: cht-wcove: Use devm_led_classdev_register() to avoid memory leak
mfd: syscon: Fix race in device_node_get_regmap()
samples/landlock: Fix possible NULL dereference in parse_path()
wifi: mt76: mt7996: fix invalid interface combinations
wifi: wlcore: fix unbalanced pm_runtime calls
wifi: rtw89: handle entity active flag per PHY
wifi: rtw89: chan: manage active interfaces
wifi: rtw89: tweak setting of channel and TX power for MLO
wifi: rtw89: fix proceeding MCC with wrong scanning state after sequence changes
wifi: rtw89: chan: fix soft lockup in rtw89_entity_recalc_mgnt_roles()
wifi: rtw89: avoid to init mgnt_entry list twice when WoWLAN failed
wifi: rtw89: mcc: consider time limits not divisible by 1024
wifi: rtw89: fix race between cancel_hw_scan and hw_scan completion
hwmon: Fix help text for aspeed-g6-pwm-tach
wifi: mt76: mt7925: fix off by one in mt7925_load_clc()
wifi: mt76: mt7915: Fix mesh scan on MT7916 DBDC
wifi: iwlwifi: fw: read STEP table from correct UEFI var
wifi: iwlwifi: mvm: avoid NULL pointer dereference
wifi: iwlwifi: mvm: don't count mgmt frames as MPDU
wifi: mac80211: prohibit deactivating all links
wifi: cfg80211: Move cfg80211_scan_req_add_chan() n_channels increment earlier
wifi: mac80211: fix tid removal during mesh forwarding
wifi: mac80211: Fix common size calculation for ML element
wifi: mac80211: don't flush non-uploaded STAs
clk: ralink: mtmips: remove duplicated 'xtal' clock for Ralink SoC RT3883
clk: thead: Fix clk gate registration to pass flags
clk: thead: Add CLK_IGNORE_UNUSED to fix TH1520 boot
clk: thead: Fix cpu2vp_clk for TH1520 AP_SUBSYS clocks
net/smc: fix data error when recvmsg with MSG_PEEK flag
landlock: Handle weird files
wifi: mt76: mt76u_vendor_request: Do not print error messages when -EPROTO
wifi: mt76: mt7921: fix using incorrect group cipher after disconnection.
wifi: mt76: mt7915: Fix an error handling path in mt7915_add_interface()
wifi: mt76: mt7925: fix NULL deref check in mt7925_change_vif_links
wifi: mt76: mt7925: fix wrong band_idx setting when enable sniffer mode
wifi: mt76: mt7925: fix get wrong chip cap from incorrect pointer
wifi: mt76: mt7925: fix the invalid ip address for arp offload
wifi: mt76: mt7996: fix overflows seen when writing limit attributes
wifi: mt76: mt7915: fix overflows seen when writing limit attributes
wifi: mt76: connac: Extend mt76_connac_mcu_uni_add_dev for MLO
wifi: mt76: mt7925: Fix incorrect MLD address in bss_mld_tlv for MLO support
wifi: mt76: mt7925: Fix incorrect WCID assignment for MLO
wifi: mt76: mt7925: Fix incorrect WCID phy_idx assignment
wifi: mt76: mt7925: fix wrong parameter for related cmd of chan info
wifi: mt76: mt7925: Fix CNM Timeout with Single Active Link in MLO
wifi: mt76: mt7925: Enhance mt7925_mac_link_bss_add to support MLO
wifi: mt76: Enhance mt7925_mac_link_sta_add to support MLO
wifi: mt76: mt7925: Update mt7925_mcu_sta_update for BC in ASSOC state
wifi: mt76: mt7925: Update mt792x_rx_get_wcid for per-link STA
wifi: mt76: mt7925: Update mt7925_unassign_vif_chanctx for per-link BSS
wifi: mt76: mt7925: Update secondary link PS flow
wifi: mt76: mt7925: Init secondary link PM state
wifi: mt76: mt7925: Update mt7925_mcu_uni_[tx,rx]_ba for MLO
wifi: mt76: mt7925: Cleanup MLO settings post-disconnection
wifi: mt76: mt7925: Properly handle responses for commands with events
wifi: mt76: mt7996: fix rx filter setting for bfee functionality
wifi: mt76: only enable tx worker after setting the channel
wifi: mt76: mt7915: firmware restart on devices with a second pcie link
wifi: mt76: mt7915: fix omac index assignment after hardware reset
wifi: mt76: mt7915: fix register mapping
wifi: mt76: mt7996: fix register mapping
wifi: mt76: mt7996: add max mpdu len capability
wifi: mt76: mt7996: fix the capability of reception of EHT MU PPDU
wifi: mt76: mt7996: fix HE Phy capability
wifi: mt76: mt7996: fix incorrect indexing of MIB FW event
wifi: mt76: mt7996: fix definition of tx descriptor
wifi: mt76: mt7996: fix ldpc setting
i2c: designware: Actually make use of the I2C_DW_COMMON and I2C_DW symbol namespaces
cpufreq: ACPI: Fix max-frequency computation
selftests: timers: clocksource-switch: Adapt progress to kselftest framework
selftests: harness: fix printing of mismatch values in __EXPECT()
wifi: cfg80211: adjust allocation of colocated AP data
Bluetooth: btbcm: Fix NULL deref in btbcm_get_board_name()
Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()
inet: ipmr: fix data-races
clk: analogbits: Fix incorrect calculation of vco rate delta
dev: Acquire netdev_rename_lock before restoring dev->name in dev_change_name().
pwm: stm32: Add check for clk_enable()
selftests/landlock: Fix build with non-default pthread linking
selftests/landlock: Fix error message
net: let net.core.dev_weight always be non-zero
net/mlxfw: Drop hard coded max FW flash image size
octeon_ep: remove firmware stats fetch in ndo_get_stats64
octeon_ep_vf: remove firmware stats fetch in ndo_get_stats64
net: avoid race between device unregistration and ethnl ops
net: sched: Disallow replacing of child qdisc from one parent to another
netfilter: nf_tables: fix set size with rbtree backend
netfilter: nft_flow_offload: update tcp state flags under lock
net: sched: refine software bypass handling in tc_run
net: ethernet: ti: am65-cpsw: fix freeing IRQ in am65_cpsw_nuss_remove_tx_chns()
tcp_cubic: fix incorrect HyStart round start detection
net/rose: prevent integer overflows in rose_setsockopt()
platform/mellanox: mlxbf-pmc: incorrect type in assignment
platform/x86: x86-android-tablets: make platform data be static
pinctrl: samsung: Fix irq handling if an error occurs in exynos_irq_demux_eint16_31()
libbpf: don't adjust USDT semaphore address if .stapsdt.base addr is missing
ASoC: cs40l50: Use *-y for Makefile
ASoC: mediatek: mt8365: Use *-y for Makefile
ASoC: wcd937x: Use *-y for Makefile
tools/testing/selftests/bpf/test_tc_tunnel.sh: Fix wait for server bind
libbpf: Fix segfault due to libelf functions not setting errno
ASoC: Intel: sof_sdw: correct mach_params->dmic_num
ASoC: sun4i-spdif: Add clock multiplier settings
selftests/bpf: Fix fill_link_info selftest on powerpc
iommu/arm-smmuv3: Update comments about ATS and bypass
crypto: tegra - do not transfer req when tegra init fails
crypto: api - Fix boot-up self-test race
crypto: caam - use JobR's space to access page 0 regs
perf header: Fix one memory leakage in process_bpf_btf()
perf header: Fix one memory leakage in process_bpf_prog_info()
perf bpf: Fix two memory leakages when calling perf_env__insert_bpf_prog_info()
ASoC: renesas: rz-ssi: Use only the proper amount of dividers
perf expr: Initialize is_test value in expr__ctx_new()
pinctrl: nomadik: Add check for clk_enable()
ktest.pl: Remove unused declarations in run_bisect_test function
bpf: bpf_local_storage: Always use bpf_mem_alloc in PREEMPT_RT
rhashtable: Fix potential deadlock by moving schedule_work outside lock
crypto: hisilicon/sec2 - fix for aead icv error
crypto: hisilicon/sec2 - fix for aead invalid authsize
crypto: ixp4xx - fix OF node reference leaks in init_ixp_crypto()
crypto: iaa - Fix IAA disabling that occurs when sync_mode is set to 'async'
bpf: Use refcount_t instead of atomic_t for mmap_count
ALSA: seq: Make dependency on UMP clearer
bpf: Reject struct_ops registration that uses module ptr and the module btf_id is missing
padata: fix sysfs store callback check
selftests/bpf: Avoid generating untracked files when running bpf selftests
perf top: Don't complain about lack of vmlinux when not resolving some kernel samples
perf maps: Fix display of kernel symbols
perf machine: Don't ignore _etext when not a text symbol
perf namespaces: Introduce nsinfo__set_in_pidns()
perf namespaces: Fixup the nsinfo__in_pidns() return type, its bool
ASoC: Intel: avs: Do not readq() u32 registers
ASoC: Intel: avs: Fix the minimum firmware version numbers
ASoC: Intel: avs: Fix theoretical infinite loop
ASoC: Intel: avs: Fix init-config parsing
perf MANIFEST: Add arch/*/include/uapi/asm/bpf_perf_event.h to the perf tarball
ALSA: hda: Fix compilation of snd_hdac_adsp_xxx() helpers
perf report: Fix misleading help message about --demangle
pinctrl: stm32: Add check for clk_enable()
pinctrl: amd: Take suspend type into consideration which pins are non-wake
perf inject: Fix use without initialization of local variables
ASoC: Intel: sof_sdw: Fix DMI match for Lenovo 83LC
ASoC: Intel: sof_sdw: Fix DMI match for Lenovo 83JX, 83MC and 83NM
bpf: Send signals asynchronously if !preemptible
selftests/bpf: Fix btf leak on new btf alloc failure in btf_distill test
libbpf: Fix return zero when elf_begin failed
libbpf: Fix incorrect traversal end type ID when marking BTF_IS_EMBEDDED
bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write
iommu/amd: Remove unused amd_iommu_domain_update()
ALSA: hda/realtek - Fixed headphone distorted sound on Acer Aspire A115-31 laptop
tools: Sync if_xdp.h uapi tooling header
perf lock: Fix parse_lock_type which only retrieve one lock flag
padata: fix UAF in padata_reorder
padata: add pd get/put refcnt helper
padata: avoid UAF for reorder_work
rhashtable: Fix rhashtable_try_insert test
smb: client: fix oops due to unset link speed
cifs: Use cifs_autodisable_serverino() for disabling CIFS_MOUNT_SERVER_INUM in readdir.c
bpf: Cancel the running bpf_timer through kworker for PREEMPT_RT
soc: atmel: fix device_node release in atmel_soc_device_init()
ARM: at91: pm: change BU Power Switch to automatic mode
ARM: dts: imx7-tqma7: add missing vs-supply for LM75A (rev. 01xxx)
arm64: dts: mediatek: mt8186: Move wakeup to MTU3 to get working suspend
arm64: dts: mt8183: set DMIC one-wire mode on Damu
arm64: dts: mediatek: mt8516: fix GICv2 range
arm64: dts: mediatek: mt8516: fix wdt irq type
arm64: dts: mediatek: mt8516: add i2c clock-div property
arm64: dts: mediatek: mt8516: reserve 192 KiB for TF-A
ARM: dts: stm32: Increase CPU core voltage on STM32MP13xx DHCOR SoM
ARM: dts: stm32: Fix IPCC EXTI declaration on stm32mp151
RDMA/mlx4: Avoid false error about access to uninitialized gids array
arm64: dts: renesas: rzg3s-smarc: Fix the debug serial alias
rdma/cxgb4: Prevent potential integer overflow on 32bit
arm64: dts: mediatek: mt8173-evb: Drop regulator-compatible property
arm64: dts: mediatek: mt8173-elm: Drop regulator-compatible property
arm64: dts: mediatek: mt8192-asurada: Drop regulator-compatible property
arm64: dts: mediatek: mt8195-cherry: Drop regulator-compatible property
arm64: dts: mediatek: mt8195-demo: Drop regulator-compatible property
arm64: dts: medaitek: mt8395-nio-12l: Drop regulator-compatible property
arm64: dts: mediatek: mt8395-genio-1200-evk: Drop regulator-compatible property
arm64: dts: mediatek: mt8173-elm: Fix MT6397 PMIC sub-node names
arm64: dts: mediatek: mt8173-evb: Fix MT6397 PMIC sub-node names
ARM: dts: aspeed: yosemite4: correct the compatible string of adm1272
ARM: dts: aspeed: yosemite4: Add required properties for IOE on fan boards
ARM: dts: aspeed: yosemite4: correct the compatible string for max31790
arm: dts: socfpga: use reset-name "stmmaceth-ocp" instead of "ahb"
RDMA/rxe: Fix mismatched max_msg_sz
arm64: dts: mediatek: mt8183: kenzo: Support second source touchscreen
arm64: dts: mediatek: mt8183: willow: Support second source touchscreen
RDMA/srp: Fix error handling in srp_add_port
arm64: dts: mediatek: mt8195: Remove suspend-breaking reset from pcie1
ARM: dts: stm32: Deduplicate serial aliases and chosen node for STM32MP15xx DHCOM SoM
ARM: dts: stm32: Swap USART3 and UART8 alias on STM32MP15xx DHCOM SoM
memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()
arm64: dts: mediatek: mt8183-kukui-jacuzzi: Drop pp3300_panel voltage settings
arm64: dts: qcom: msm8996-xiaomi-gemini: Fix LP5562 LED1 reg property
arm64: dts: qcom: sa8775p: Update sleep_clk frequency
arm64: defconfig: remove obsolete CONFIG_SM_DISPCC_8650
arm64: dts: qcom: msm8996: Fix up USB3 interrupts
arm64: dts: qcom: msm8994: Describe USB interrupts
arm64: dts: qcom: sm7225-fairphone-fp4: Drop extra qcom,msm-id value
arm64: dts: qcom: msm8916: correct sleep clock frequency
arm64: dts: qcom: msm8939: correct sleep clock frequency
arm64: dts: qcom: msm8994: correct sleep clock frequency
arm64: dts: qcom: qcs404: correct sleep clock frequency
arm64: dts: qcom: q[dr]u1000: correct sleep clock frequency
arm64: dts: qcom: qrb4210-rb2: correct sleep clock frequency
arm64: dts: qcom: sc7280: correct sleep clock frequency
arm64: dts: qcom: sdx75: correct sleep clock frequency
arm64: dts: qcom: sm4450: correct sleep clock frequency
arm64: dts: qcom: sm6125: correct sleep clock frequency
arm64: dts: qcom: sm6375: correct sleep clock frequency
arm64: dts: qcom: sm8250: correct sleep clock frequency
arm64: dts: qcom: sm8350: correct sleep clock frequency
arm64: dts: qcom: sm8450: correct sleep clock frequency
arm64: dts: qcom: sm8550: correct sleep clock frequency
arm64: dts: qcom: sm8650: correct sleep clock frequency
arm64: dts: qcom: x1e80100: correct sleep clock frequency
arm64: dts: qcom: sm8650: Fix CDSP context banks unit addresses
ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to sdmmc0 node
ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to sdmmc0 node
arm64: dts: ti: k3-am62: Remove duplicate GICR reg
arm64: dts: ti: k3-am62a: Remove duplicate GICR reg
arm64: dts: rockchip: Fix sdmmc access on rk3308-rock-s0 v1.1 boards
arm64: dts: allwinner: a64: explicitly assign clock parent for TCON0
RDMA/bnxt_re: Fix to drop reference to the mmap entry in case of error
RDMA/rtrs: Add missing deinit() call
RDMA/hns: Clean up the legacy CONFIG_INFINIBAND_HNS
ARM: omap1: Fix up the Retu IRQ on Nokia 770
arm64: dts: qcom: qcm6490-shift-otter: remove invalid orientation-switch
arm64: dts: qcom: sdm845-db845c-navigation-mezzanine: Convert mezzanine riser to dtso
arm64: dts: qcom: sdm845-db845c-navigation-mezzanine: remove disabled ov7251 camera
arm64: dts: qcom: sc7180-trogdor-quackingstick: add missing avee-supply
arm64: dts: qcom: sc7180-trogdor-pompom: rename 5v-choke thermal zone
arm64: dts: qcom: sc7180: change labels to lower-case
arm64: dts: qcom: sc7180: fix psci power domain node names
arm64: dts: qcom: sm8150-microsoft-surface-duo: fix typos in da7280 properties
arm64: dts: qcom: sc8280xp: Fix up remoteproc register space sizes
firmware: qcom: scm: Cleanup global '__scm' on probe failures
arm64: dts: mediatek: mt7988: Add missing clock-div property for i2c
dts: arm64: mediatek: mt8195: Remove MT8183 compatible for OVL
arm64: dts: mediatek: add per-SoC compatibles for keypad nodes
arm64: dts: qcom: sc8280xp: Fix interrupt type of camss interrupts
arm64: dts: qcom: sdm845: Fix interrupt types of camss interrupts
arm64: dts: qcom: sm8250: Fix interrupt types of camss interrupts
arm64: dts: marvell: cn9131-cf-solidwan: fix cp1 comphy links
ARM: dts: mediatek: mt7623: fix IR nodename
arm64: dts: rockchip: fix num-channels property of wolfvision pf5 mic
arm64: dts: ti: k3-am642-hummingboard-t: Convert overlay to board dts
fbdev: omapfb: Fix an OF node leak in dss_of_port_get_parent_device()
arm64: tegra: Fix DMA ID for SPI2
arm64: dts: qcom: x1e80100-romulus: Update firmware nodes
i3c: dw: Fix use-after-free in dw_i3c_master driver due to race condition
RDMA/mlx5: Fix indirect mkey ODP page count
of: property: Avoiding using uninitialized variable @imaplen in parse_interrupt_map()
of: reserved-memory: Do not make kmemleak ignore freed address
efi: sysfb_efi: fix W=1 warnings when EFI is not set
RDMA/cxgb4: Notify rdma stack for IB_EVENT_QP_LAST_WQE_REACHED event
RDMA/rxe: Fix the warning "__rxe_cleanup+0x12c/0x170 [rdma_rxe]"
iommu: iommufd: fix WARNING in iommufd_device_unbind
iommufd/iova_bitmap: Fix shift-out-of-bounds in iova_bitmap_offset_to_index()
spi: omap2-mcspi: Correctly handle devm_clk_get_optional() errors
of: reserved_mem: Restructure how the reserved memory regions are processed
of/fdt: Restore possibility to use both ACPI and FDT from bootloader
media: rc: iguanair: handle timeouts
media: lmedm04: Handle errors for lme2510_int_read
PCI: endpoint: Destroy the EPC device in devm_pci_epc_destroy()
remoteproc: mtk_scp: Only populate devices for SCP cores
media: marvell: Add check for clk_enable()
media: i2c: imx290: Register 0x3011 varies between imx327 and imx290
media: i2c: imx412: Add missing newline to prints
media: i2c: ov9282: Correct the exposure offset
media: mipi-csis: Add check for clk_enable()
media: camif-core: Add check for clk_enable()
media: uvcvideo: Propagate buf->error to userspace
mtd: rawnand: brcmnand: fix status read of brcmnand_waitfunc
mtd: hyperbus: hbmc-am654: fix an OF node reference leak
media: nxp: imx8-isi: fix v4l2-compliance test errors
watchdog: rti_wdt: Fix an OF node leak in rti_wdt_probe()
staging: media: imx: fix OF node leak in imx_media_add_of_subdevs()
media: dvb-usb-v2: af9035: fix ISO C90 compilation error on af9035_i2c_master_xfer
PCI: rcar-ep: Fix incorrect variable used when calling devm_request_mem_region()
PCI: imx6: Configure PHY based on Root Complex or Endpoint mode
PCI: imx6: Skip controller_id generation logic for i.MX7D
PCI: imx6: Deassert apps_reset in imx_pcie_deassert_core_reset()
PCI: imx6: Add missing reference clock disable logic
PCI: qcom: Update ICC and OPP values after Link Up event
PCI: dwc: Always stop link in the dw_pcie_suspend_noirq
PCI: endpoint: pci-epf-test: Set dma_chan_rx pointer to NULL on error
PCI: endpoint: pci-epf-test: Fix check for DMA MEMCPY test
PCI: microchip: Add support for using either Root Port 1 or 2
PCI: microchip: Set inbound address translation for coherent or non-coherent mode
scsi: mpt3sas: Set ioc->manu_pg11.EEDPTagMode directly to 1
scsi: ufs: bsg: Delete bsg_dev when setting up bsg fails
scsi: mpi3mr: Fix possible crash when setting up bsg fails
firewire: test: Fix potential null dereference in firewire kunit test
erofs: get rid of erofs_{find,insert}_workgroup
erofs: move erofs_workgroup operations into zdata.c
erofs: sunset `struct erofs_workgroup`
erofs: fix potential return value overflow of z_erofs_shrink_scan()
ocfs2: mark dquot as inactive if failed to start trans while releasing dquot
nilfs2: do not force clear folio if buffer is referenced
nilfs2: protect access to buffers with no active references
nilfs2: handle errors that nilfs_prepare_chunk() may return
module: Extend the preempt disabled section in dereference_symbol_descriptor().
module: Don't fail module loading when setting ro_after_init section RO failed
driver core: class: Fix wild pointer dereferences in API class_dev_iter_next()
tty: mips_ejtag_fdc: fix one more u8 warning
serial: 8250: Adjust the timeout for FIFO mode
nfs: fix incorrect error handling in LOCALIO
NFSv4.2: fix COPY_NOTIFY xdr buf size calculation
NFSv4.2: mark OFFLOAD_CANCEL MOVEABLE
LoongArch: Fix warnings during S3 suspend
tools/bootconfig: Fix the wrong format specifier
xfrm: replay: Fix the update of replay_esn->oseq_hi for GSO
xfrm: Add support for per cpu xfrm state handling.
xfrm: Cache used outbound xfrm states at the policy.
xfrm: Add an inbound percpu state cache.
xfrm: state: fix out-of-bounds read during lookup
dmaengine: ti: edma: fix OF node reference leaks in edma_driver
xfrm: delete intermediate secpath entry in packet offload mode
rtc: tps6594: Fix integer overflow on 32bit systems
rtc: pcf85063: fix potential OOB write in PCF85063 NVMEM read
rtc: loongson: clear TOY_MATCH0_REG in loongson_rtc_isr()
ubifs: skip dumping tnc tree when zroot is null
regulator: core: Add missing newline character
net: airoha: Fix wrong GDM4 register definition
net: hns3: fix oops when unload drivers paralleling
gpio: mxc: remove dead code after switch to DT-only
net: phy: marvell-88q2xxx: Fix temperature measurement with reset-gpios
net: fec: implement TSO descriptor cleanup
ipmr: do not call mr_mfc_uses_dev() for unres entries
PM: hibernate: Add error handling for syscore_suspend()
perf trace: Fix BPF loading failure (-E2BIG)
xfrm: Don't disable preemption while looking up cache state.
idpf: add read memory barrier when checking descriptor done bit
idpf: fix transaction timeouts on reset
idpf: Acquire the lock before accessing the xn->salt
idpf: convert workqueues to unbound
ice: fix ice_parser_rt::bst_key array size
ice: rework of dump serdes equalizer values feature
ice: extend dump serdes equalizer values feature
ice: remove invalid parameter of equalizer
iavf: allow changing VLAN state without calling PF
s390/mm: Allow large pages for KASAN shadow mapping
net/ncsi: use dev_set_mac_address() for Get MC MAC Address handling
net: rose: fix timer races against user threads
net: netdevsim: try to close UDP port harness races
tools: ynl: c: correct reverse decode of empty attrs
selftests: mptcp: extend CFLAGS to keep options from environment
selftests: net/{lib,openvswitch}: extend CFLAGS to keep options from environment
rxrpc, afs: Fix peer hash locking vs RCU callback
vxlan: Fix uninit-value in vxlan_vnifilter_dump()
net: davicom: fix UAF in dm9000_drv_remove
ptp: Properly handle compat ioctls
net: ethtool: only allow set_rxnfc with rss + ring_cookie if driver opts in
ethtool: Fix set RXNFC command with symmetric RSS hash
net: stmmac: Limit the number of MTL queues to hardware capability
net: stmmac: Limit FIFO size by hardware capability
s390/sclp: Initialize sclp subsystem via arch_cpu_finalize_init()
perf trace: Fix runtime error of index out of bounds
perf test: Skip syscall enum test if no landlock syscall
Bluetooth: btusb: mediatek: Add locks for usb_driver_claim_interface()
Bluetooth: btnxpuart: Fix glitches seen in dual A2DP streaming
vsock: Allow retrying on connect() failure
bgmac: reduce max frame size to support just MTU 1500
tcp: correct handling of extreme memory squeeze
net: xdp: Disallow attaching device-bound programs in generic mode
net: ravb: Fix missing rtnl lock in suspend/resume path
net: sh_eth: Fix missing rtnl lock in suspend/resume path
net: hsr: fix fill_frame_info() regression vs VLAN packets
genksyms: fix memory leak when the same symbol is added from source
genksyms: fix memory leak when the same symbol is read from *.symref file
hostfs: fix string handling in __dentry_name()
tools/power turbostat: Allow using cpu device in perf counters on hybrid platforms
tools/power turbostat: Fix PMT mmaped file size rounding
RISC-V: Mark riscv_v_init() as __init
ASoC: rockchip: i2s_tdm: Re-add the set_sysclk callback
io_uring/uring_cmd: use cached cmd_op in io_uring_cmd_sock()
ASoC: amd: acp: Fix possible deadlock
tools/power turbostat: Fix forked child affinity regression
cifs: Validate EAs for WSL reparse points
cifs: Fix getting and setting SACLs over SMB1
kconfig: fix file name in warnings when loading KCONFIG_DEFCONFIG_LIST
kconfig: fix memory leak in sym_warn_unmet_dep()
hexagon: fix using plain integer as NULL pointer warning in cmpxchg
hexagon: Fix unbalanced spinlock in die()
f2fs: Introduce linear search for dentries
md/md-bitmap: factor behind write counters out from bitmap_{start/end}write()
md/md-bitmap: remove the last parameter for bimtap_ops->endwrite()
md: add a new callback pers->bitmap_sector()
md/raid5: implement pers->bitmap_sector()
md/md-bitmap: move bitmap_{start, end}write to md upper layer
Revert "SUNRPC: Reduce thread wake-up rate when receiving large RPC messages"
kbuild: switch from lz4c to lz4 for compression
netfilter: nf_tables: reject mismatching sum of field_len with set key length
drm/amd/display: Reduce accessing remote DPCD overhead
selftests/rseq: Fix handling of glibc without rseq support
selftests/ftrace: Fix to use remount when testing mount GID option
ktest.pl: Check kernelrelease return in get_version
xfs: check for dead buffers in xfs_buf_find_insert
xfs: don't shut down the filesystem for media failures beyond end of log
ALSA: usb-audio: Add delay quirk for iBasso DC07 Pro
net: usb: rtl8150: enable basic endpoint checking
usb: xhci: Fix NULL pointer dereference on certain command aborts
drivers/card_reader/rtsx_usb: Restore interrupt based detection
usb: gadget: f_tcm: Fix Get/SetInterface return value
usb: dwc3-am62: Fix an OF node leak in phy_syscon_pll_refclk()
usb: dwc3: core: Defer the probe until USB power supply ready
usb: dwc3: Skip resume if pm_runtime_set_active() fails
usb: typec: tcpm: set SRC_SEND_CAPABILITIES timeout to PD_T_SENDER_RESPONSE
usb: typec: tcpci: Prevent Sink disconnection before vPpsShutdown in SPR PPS
clk: qcom: gcc-x1e80100: Do not turn off usb_2 controller GDSC
mptcp: consolidate suboption status
mptcp: pm: only set fullmesh for subflow endp
mptcp: handle fastopen disconnect correctly
mptcp: blackhole only if 1st SYN retrans w/o MPC is accepted
RDMA/mlx5: Fix implicit ODP use after free
remoteproc: core: Fix ida_free call while not allocated
media: uvcvideo: Fix double free in error path
pps: Fix a use-after-free
usb: gadget: f_tcm: Don't free command immediately
staging: media: max96712: fix kernel oops when removing module
media: imx-jpeg: Fix potential error pointer dereference in detach_pm()
powerpc/pseries/iommu: Don't unset window if it was never set
md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime
btrfs: output the reason for open_ctree() failure
of: reserved-memory: Warn for missing static reserved memory regions
dma-mapping: save base/size instead of pointer to shared DMA pool
xfrm: Add error handling when nla_put_u32() returns an error
xfrm: Fix acquire state insertion.
ethtool: Fix access to uninitialized fields in set RXNFC command
Revert "s390/mm: Allow large pages for KASAN shadow mapping"
selftests/bpf: Add test to verify tailcall and freplace restrictions
ASoC: da7213: Initialize the mutex
s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS
drm/amd/display: Add hubp cache reset when powergating
KVM: x86: Plumb in the vCPU to kvm_x86_ops.hwapic_isr_update()
memcg: fix soft lockup in the OOM process
LoongArch: Change 8 to 14 for LOONGARCH_MAX_{BRP,WRP}
btrfs: do proper folio cleanup when run_delalloc_nocow() failed
ethtool: ntuple: fix rss + ring_cookie check
Linux 6.12.13
Change-Id: I0b4278d2911ea7c72e068418ed56d1514b393980
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit ceb8bf2ceaa77fe222fe8fe32cb7789c9099ddf1 ]
Commit cdd30ebb1b9f ("module: Convert symbol namespace to string
literal") only converted MODULE_IMPORT_NS() and EXPORT_SYMBOL_NS(),
leaving DEFAULT_SYMBOL_NAMESPACE as a macro expansion.
This commit converts DEFAULT_SYMBOL_NAMESPACE in the same way to avoid
annoyance for the default namespace as well.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stable-dep-of: 2505f87eb3af ("hwmon: (nct6775): Actually make use of the HWMON_NCT6775 symbol namespace")
Signed-off-by: Sasha Levin <sashal@kernel.org>
With gendwarfksyms, we need each TU where the EXPORT_SYMBOL() macro
is used to also contain DWARF type information for the symbols it
exports. However, as a TU can also export external symbols and
compilers may choose not to emit debugging information for symbols not
defined in the current TU, the missing types will result in missing
symbol versions. Stand-alone assembly code also doesn't contain type
information for exported symbols, so we need to compile a temporary
object file with asm-prototypes.h instead, and similarly need to
ensure the DWARF in the temporary object file contains the necessary
types.
To always emit type information for external exports, add explicit
__gendwarfksyms_ptr_<symbol> references to them in EXPORT_SYMBOL().
gendwarfksyms will use the type information for __gendwarfksyms_ptr_*
if needed. Discard the pointers from the final binary to avoid further
bloat.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit d7476f24c9aa93d02ef3fd8d587a6114387b7667
https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git kbuild)
Bug: 347787665
Signed-off-by: Matthew Maurer <mmaurer@google.com>
Change-Id: Iee2f513ee109b7a1d55104b6a6bc47ed260cf26f
Signed-off-by: Matthew Maurer <mmaurer@google.com>
Commit f50169324d ("module.h: split out the EXPORT_SYMBOL into
export.h") appropriately separated EXPORT_SYMBOL into <linux/export.h>
because modules and EXPORT_SYMBOL are orthogonal; modules are symbol
consumers, while EXPORT_SYMBOL are used by symbol providers, which
may not be necessarily a module.
However, that commit also relocated THIS_MODULE. As explained in the
commit description, the intention was to define THIS_MODULE in a
lightweight header, but I do not believe <linux/export.h> was the
best location because EXPORT_SYMBOL and THIS_MODULE are unrelated.
Move it to another lightweight header, <linux/init.h>. The reason for
choosing <linux/init.h> is to make <linux/moduleparam.h> self-contained
without relying on <linux/linkage.h> incorrectly including
<linux/export.h>.
With this adjustment, the role of <linux/export.h> becomes clearer as
it only defines EXPORT_SYMBOL.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Currently, all files with EXPORT_SYMBOL() are rebuilt when CONFIG_MODULES
is flipped due to <linux/export.h> depending on CONFIG_MODULES.
Now that modpost can make a final decision about export symbols,
<linux/export.h> does not need to make EXPORT_SYMBOL() no-op.
Instead, modpost can skip emitting KSYMTAB when CONFIG_MODULES is unset.
This commit will reduce the number of recompilation when CONFIG_MODULES
is toggled.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Now, EXPORT_SYMBOL() is populated in two stages. In the first stage,
all of EXPORT_SYMBOL/EXPORT_SYMBOL_GPL go into the same section,
'.export_symbol'.
'sec' does not make sense any more. Rename it to 'license'.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
When CONFIG_TRIM_UNUSED_KSYMS is enabled, Kbuild recursively traverses
the directory tree to determine which EXPORT_SYMBOL to trim. If an
EXPORT_SYMBOL turns out to be unused by anyone, Kbuild begins the
second traverse, where some source files are recompiled with their
EXPORT_SYMBOL() tuned into a no-op.
Linus stated negative opinions about this slowness in commits:
- 5cf0fd591f ("Kbuild: disable TRIM_UNUSED_KSYMS option")
- a555bdd0c5 ("Kbuild: enable TRIM_UNUSED_KSYMS again, with some guarding")
We can do this better now. The final data structures of EXPORT_SYMBOL
are generated by the modpost stage, so modpost can selectively emit
KSYMTAB entries that are really used by modules.
Commit f73edc8951 ("kbuild: unify two modpost invocations") is another
ground-work to do this in a one-pass algorithm. With the list of modules,
modpost sets sym->used if it is used by a module. modpost emits KSYMTAB
only for symbols with sym->used==true.
BTW, Nicolas explained why the trimming was implemented with recursion:
https://lore.kernel.org/all/2o2rpn97-79nq-p7s2-nq5-8p83391473r@syhkavp.arg/
Actually, we never achieved that level of optimization where the chain
reaction of trimming comes into play because:
- CONFIG_LTO_CLANG cannot remove any unused symbols
- CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is enabled only for vmlinux,
but not modules
If deeper trimming is required, we need to revisit this, but I guess
that is unlikely to happen.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Commit 7b4537199a ("kbuild: link symbol CRCs at final link, removing
CONFIG_MODULE_REL_CRCS") made modpost output CRCs in the same way
whether the EXPORT_SYMBOL() is placed in *.c or *.S.
For further cleanups, this commit applies a similar approach to the
entire data structure of EXPORT_SYMBOL().
The EXPORT_SYMBOL() compilation is split into two stages.
When a source file is compiled, EXPORT_SYMBOL() will be converted into
a dummy symbol in the .export_symbol section.
For example,
EXPORT_SYMBOL(foo);
EXPORT_SYMBOL_NS_GPL(bar, BAR_NAMESPACE);
will be encoded into the following assembly code:
.section ".export_symbol","a"
__export_symbol_foo:
.asciz "" /* license */
.asciz "" /* name space */
.balign 8
.quad foo /* symbol reference */
.previous
.section ".export_symbol","a"
__export_symbol_bar:
.asciz "GPL" /* license */
.asciz "BAR_NAMESPACE" /* name space */
.balign 8
.quad bar /* symbol reference */
.previous
They are mere markers to tell modpost the name, license, and namespace
of the symbols. They will be dropped from the final vmlinux and modules
because the *(.export_symbol) will go into /DISCARD/ in the linker script.
Then, modpost extracts all the information about EXPORT_SYMBOL() from the
.export_symbol section, and generates the final C code:
KSYMTAB_FUNC(foo, "", "");
KSYMTAB_FUNC(bar, "_gpl", "BAR_NAMESPACE");
KSYMTAB_FUNC() (or KSYMTAB_DATA() if it is data) is expanded to struct
kernel_symbol that will be linked to the vmlinux or a module.
With this change, EXPORT_SYMBOL() works in the same way for *.c and *.S
files, providing the following benefits.
[1] Deprecate EXPORT_DATA_SYMBOL()
In the old days, EXPORT_SYMBOL() was only available in C files. To export
a symbol in *.S, EXPORT_SYMBOL() was placed in a separate *.c file.
arch/arm/kernel/armksyms.c is one example written in the classic manner.
Commit 22823ab419 ("EXPORT_SYMBOL() for asm") removed this limitation.
Since then, EXPORT_SYMBOL() can be placed close to the symbol definition
in *.S files. It was a nice improvement.
However, as that commit mentioned, you need to use EXPORT_DATA_SYMBOL()
for data objects on some architectures.
In the new approach, modpost checks symbol's type (STT_FUNC or not),
and outputs KSYMTAB_FUNC() or KSYMTAB_DATA() accordingly.
There are only two users of EXPORT_DATA_SYMBOL:
EXPORT_DATA_SYMBOL_GPL(empty_zero_page) (arch/ia64/kernel/head.S)
EXPORT_DATA_SYMBOL(ia64_ivt) (arch/ia64/kernel/ivt.S)
They are transformed as follows and output into .vmlinux.export.c
KSYMTAB_DATA(empty_zero_page, "_gpl", "");
KSYMTAB_DATA(ia64_ivt, "", "");
The other EXPORT_SYMBOL users in ia64 assembly are output as
KSYMTAB_FUNC().
EXPORT_DATA_SYMBOL() is now deprecated.
[2] merge <linux/export.h> and <asm-generic/export.h>
There are two similar header implementations:
include/linux/export.h for .c files
include/asm-generic/export.h for .S files
Ideally, the functionality should be consistent between them, but they
tend to diverge.
Commit 8651ec01da ("module: add support for symbol namespaces.") did
not support the namespace for *.S files.
This commit shifts the essential implementation part to C, which supports
EXPORT_SYMBOL_NS() for *.S files.
<asm/export.h> and <asm-generic/export.h> will remain as a wrapper of
<linux/export.h> for a while.
They will be removed after #include <asm/export.h> directives are all
replaced with #include <linux/export.h>.
[3] Implement CONFIG_TRIM_UNUSED_KSYMS in one-pass algorithm (by a later commit)
When CONFIG_TRIM_UNUSED_KSYMS is enabled, Kbuild recursively traverses
the directory tree to determine which EXPORT_SYMBOL to trim. If an
EXPORT_SYMBOL turns out to be unused by anyone, Kbuild begins the
second traverse, where some source files are recompiled with their
EXPORT_SYMBOL() tuned into a no-op.
We can do this better now; modpost can selectively emit KSYMTAB entries
that are really used by modules.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Pull driver core updates from Greg KH:
"Here is the set of driver core changes for 5.19-rc1.
Lots of tiny driver core changes and cleanups happened this cycle, but
the two major things are:
- firmware_loader reorganization and additions including the ability
to have XZ compressed firmware images and the ability for userspace
to initiate the firmware load when it needs to, instead of being
always initiated by the kernel. FPGA devices specifically want this
ability to have their firmware changed over the lifetime of the
system boot, and this allows them to work without having to come up
with yet-another-custom-uapi interface for loading firmware for
them.
- physical location support added to sysfs so that devices that know
this information, can tell userspace where they are located in a
common way. Some ACPI devices already support this today, and more
bus types should support this in the future.
Smaller changes include:
- driver_override api cleanups and fixes
- error path cleanups and fixes
- get_abi script fixes
- deferred probe timeout changes.
It's that last change that I'm the most worried about. It has been
reported to cause boot problems for a number of systems, and I have a
tested patch series that resolves this issue. But I didn't get it
merged into my tree before 5.18-final came out, so it has not gotten
any linux-next testing.
I'll send the fixup patches (there are 2) as a follow-on series to this
pull request.
All have been tested in linux-next for weeks, with no reported issues
other than the above-mentioned boot time-outs"
* tag 'driver-core-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (55 commits)
driver core: fix deadlock in __device_attach
kernfs: Separate kernfs_pr_cont_buf and rename_lock.
topology: Remove unused cpu_cluster_mask()
driver core: Extend deferred probe timeout on driver registration
MAINTAINERS: add Russ Weight as a firmware loader maintainer
driver: base: fix UAF when driver_attach failed
test_firmware: fix end of loop test in upload_read_show()
driver core: location: Add "back" as a possible output for panel
driver core: location: Free struct acpi_pld_info *pld
driver core: Add "*" wildcard support to driver_async_probe cmdline param
driver core: location: Check for allocations failure
arch_topology: Trace the update thermal pressure
kernfs: Rename kernfs_put_open_node to kernfs_unlink_open_file.
export: fix string handling of namespace in EXPORT_SYMBOL_NS
rpmsg: use local 'dev' variable
rpmsg: Fix calling device_lock() on non-initialized device
firmware_loader: describe 'module' parameter of firmware_upload_register()
firmware_loader: Move definitions from sysfs_upload.h to sysfs.h
firmware_loader: Fix configs for sysfs split
selftests: firmware: Add firmware upload selftests
...
include/{linux,asm-generic}/export.h defines a weak symbol, __crc_*
as a placeholder.
Genksyms writes the version CRCs into the linker script, which will be
used for filling the __crc_* symbols. The linker script format depends
on CONFIG_MODULE_REL_CRCS. If it is enabled, __crc_* holds the offset
to the reference of CRC.
It is time to get rid of this complexity.
Now that modpost parses text files (.*.cmd) to collect all the CRCs,
it can generate C code that will be linked to the vmlinux or modules.
Generate a new C file, .vmlinux.export.c, which contains the CRCs of
symbols exported by vmlinux. It is compiled and linked to vmlinux in
scripts/link-vmlinux.sh.
Put the CRCs of symbols exported by modules into the existing *.mod.c
files. No additional build step is needed for modules. As before,
*.mod.c are compiled and linked to *.ko in scripts/Makefile.modfinal.
No linker magic is used here. The new C implementation works in the
same way, whether CONFIG_RELOCATABLE is enabled or not.
CONFIG_MODULE_REL_CRCS is no longer needed.
Previously, Kbuild invoked additional $(LD) to update the CRCs in
objects, but this step is unneeded too.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
The CRC calculation done by genksyms is triggered when the parser hits
EXPORT_SYMBOL*() macros. At this point, genksyms recursively expands the
types, and uses that as the input for the CRC calculation. In the case
of forward-declared structs, the type expands to 'UNKNOWN'. Next, the
result of the expansion of each type is cached, and is re-used when/if
the same type is seen again for another exported symbol in the file.
Unfortunately, this can cause CRC 'stability' issues when a struct
definition becomes visible in the middle of a C file. For example, let's
assume code with the following pattern:
struct foo;
int bar(struct foo *arg)
{
/* Do work ... */
}
EXPORT_SYMBOL_GPL(bar);
/* This contains struct foo's definition */
#include "foo.h"
int baz(struct foo *arg)
{
/* Do more work ... */
}
EXPORT_SYMBOL_GPL(baz);
Here, baz's CRC will be computed using the expansion of struct foo that
was cached after bar's CRC calculation ('UNKOWN' here). But if
EXPORT_SYMBOL_GPL(bar) is removed from the file (because of e.g. symbol
trimming using CONFIG_TRIM_UNUSED_KSYMS), struct foo will be expanded
late, during baz's CRC calculation, which now has visibility over the
full struct definition, hence resulting in a different CRC for baz.
This can cause annoying issues for distro kernel (such as the Android
Generic Kernel Image) which use CONFIG_UNUSED_KSYMS_WHITELIST. Indeed,
as per the above, adding a symbol to the whitelist can change the CRC of
symbols that are already kept exported. As such, modules built against a
kernel with a trimmed ABI may not load against the same kernel built
with an extended whitelist, even though they are still strictly binary
compatible. While rebuilding the modules would obviously solve the
issue, I believe this classifies as an odd genksyms corner case, and it
gets in the way of kernel updates in the GKI context.
To work around the issue, make sure to keep issuing the
__GENKSYMS_EXPORT_SYMBOL macros for all trimmed symbols, hence making
the genksyms parsing insensitive to symbol trimming.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20210408180105.2496212-1-qperret@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
EXPORT_UNUSED_SYMBOL* is not actually used anywhere. Remove the
unused functionality as we generally just remove unused code anyway.
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
As far as I can tell this has never been used at all, and certainly
not any time recently.
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Commit c3a6cf19e6 ("export: avoid code duplication in
include/linux/export.h") refactors export.h quite nicely, but introduces
a slight increase in memory usage due to using the empty string ""
instead of NULL to indicate that an exported symbol has no namespace. As
mentioned in that commit, this meant an increase of 1 byte per exported
symbol without a namespace. For example, if a kernel configuration has
about 10k exported symbols, this would mean that the size of
__ksymtab_strings would increase by roughly 10kB.
We can alleviate this situation by utilizing the SHF_MERGE and
SHF_STRING section flags. SHF_MERGE|SHF_STRING indicate to the linker
that the data in the section are null-terminated strings that can be
merged to eliminate duplication. More specifically, from the binutils
documentation - "for sections with both M and S, a string which is a
suffix of a larger string is considered a duplicate. Thus "def" will be
merged with "abcdef"; A reference to the first "def" will be changed to
a reference to "abcdef"+3". Thus, all the empty strings would be merged
as well as any strings that can be merged according to the cited method
above. For example, "memset" and "__memset" would be merged to just
"__memset" in __ksymtab_strings.
As of v5.4-rc5, the following statistics were gathered with x86
defconfig with approximately 10.7k exported symbols.
Size of __ksymtab_strings in vmlinux:
-------------------------------------
v5.4-rc5: 213834 bytes
v5.4-rc5 with commit c3a6cf19e6: 224455 bytes
v5.4-rc5 with this patch: 205759 bytes
So, we already see memory savings of ~8kB compared to vanilla -rc5 and
savings of nearly 18.7kB compared to -rc5 with commit c3a6cf19e6 on top.
Unfortunately, as of this writing, strings will not get deduplicated for
kernel modules, as ld does not do the deduplication for
SHF_MERGE|SHF_STRINGS sections for relocatable files (ld -r), which
kernel modules are. A patch for ld is currently being worked on to
hopefully allow for string deduplication in relocatable files in the
future.
Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Pull modules updates from Jessica Yu:
"Summary of modules changes for the 5.5 merge window:
- Refactor include/linux/export.h and remove code duplication between
EXPORT_SYMBOL and EXPORT_SYMBOL_NS to make it more readable.
The most notable change is that no namespace is represented by an
empty string "" rather than NULL.
- Fix a module load/unload race where waiter(s) trying to load the
same module weren't being woken up when a module finally goes away"
* tag 'modules-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
kernel/module.c: wakeup processes in module_wq on module unload
moduleparam: fix parameter description mismatch
export: avoid code duplication in include/linux/export.h
Commit b24413180f ("License cleanup: add SPDX GPL-2.0 license
identifier to files with no license") took care of a lot of files
without any license information.
These headers were not processed by the tool perhaps because they
contain "GPL" in the code.
I do not see any license boilerplate in them, so they fall back to
GPL version 2 only, which is the project default.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/r/20191018045053.8424-1-yamada.masahiro@socionext.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/export.h has lots of code duplication between
EXPORT_SYMBOL and EXPORT_SYMBOL_NS.
To improve the maintainability and readability, unify the
implementation.
When the symbol has no namespace, pass the empty string "" to
the 'ns' parameter.
The drawback of this change is, it grows the code size.
When the symbol has no namespace, sym->namespace was previously
NULL, but it is now an empty string "". So, it increases 1 byte
for every no namespace EXPORT_SYMBOL.
A typical kernel configuration has 10K exported symbols, so it
increases 10KB in rough estimation.
I did not come up with a good idea to refactor it without increasing
the code size.
I am not sure how big a deal it is, but at least include/linux/export.h
looks nicer.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[maennich: rebase on top of 3 fixes for the namespace feature]
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
The introduction of Symbol Namespaces changed the naming schema of the
__ksymtab entries from __kysmtab__symbol to __ksymtab_NAMESPACE.symbol.
That caused some breakages in tools that depend on the name layout in
either the binaries(vmlinux,*.ko) or in System.map. E.g. kmod's depmod
would not be able to read System.map without a patch to support symbol
namespaces. A warning reported by depmod for namespaced symbols would
look like
depmod: WARNING: [...]/uas.ko needs unknown symbol usb_stor_adjust_quirks
In order to address this issue, revert to the original naming scheme and
rather read the __kstrtabns_<symbol> entries and their corresponding
values from __ksymtab_strings to update the namespace values for
symbols. After having read all symbols and handled them in
handle_modversions(), the symbols are created. In a second pass, read
the __kstrtabns_ entries and update the namespaces accordingly.
Fixes: 8651ec01da ("module: add support for symbol namespaces.")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
The module namespace produces __strtab_ns_<sym> symbols to store
namespace strings, but it does not guarantee the name uniqueness.
This is a potential problem because we have exported symbols starting
with "ns_".
For example, kernel/capability.c exports the following symbols:
EXPORT_SYMBOL(ns_capable);
EXPORT_SYMBOL(capable);
Assume a situation where those are converted as follows:
EXPORT_SYMBOL_NS(ns_capable, some_namespace);
EXPORT_SYMBOL_NS(capable, some_namespace);
The former expands to "__kstrtab_ns_capable" and "__kstrtab_ns_ns_capable",
and the latter to "__kstrtab_capable" and "__kstrtab_ns_capable".
Then, we have the duplicated "__kstrtab_ns_capable".
To ensure the uniqueness, rename "__kstrtab_ns_*" to "__kstrtabns_*".
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Currently, EXPORT_SYMBOL_NS(_GPL) constructs the kernel symbol as
follows:
__ksymtab_SYMBOL.NAMESPACE
The sym_extract_namespace() in modpost allocates memory for the part
SYMBOL.NAMESPACE when '.' is contained. One problem is that the pointer
returned by strdup() is lost because the symbol name will be copied to
malloc'ed memory by alloc_symbol(). No one will keep track of the
pointer of strdup'ed memory.
sym->namespace still points to the NAMESPACE part. So, you can free it
with complicated code like this:
free(sym->namespace - strlen(sym->name) - 1);
It complicates memory free.
To fix it elegantly, I swapped the order of the symbol and the
namespace as follows:
__ksymtab_NAMESPACE.SYMBOL
then, simplified sym_extract_namespace() so that it allocates memory
only for the NAMESPACE part.
I prefer this order because it is intuitive and also matches to major
languages. For example, NAMESPACE::NAME in C++, MODULE.NAME in Python.
Reviewed-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Pull modules updates from Jessica Yu:
"The main bulk of this pull request introduces a new exported symbol
namespaces feature. The number of exported symbols is increasingly
growing with each release (we're at about 31k exports as of 5.3-rc7)
and we currently have no way of visualizing how these symbols are
"clustered" or making sense of this huge export surface.
Namespacing exported symbols allows kernel developers to more
explicitly partition and categorize exported symbols, as well as more
easily limiting the availability of namespaced symbols to other parts
of the kernel. For starters, we have introduced the USB_STORAGE
namespace to demonstrate the API's usage. I have briefly summarized
the feature and its main motivations in the tag below.
Summary:
- Introduce exported symbol namespaces.
This new feature allows subsystem maintainers to partition and
categorize their exported symbols into explicit namespaces. Module
authors are now required to import the namespaces they need.
Some of the main motivations of this feature include: allowing
kernel developers to better manage the export surface, allow
subsystem maintainers to explicitly state that usage of some
exported symbols should only be limited to certain users (think:
inter-module or inter-driver symbols, debugging symbols, etc), as
well as more easily limiting the availability of namespaced symbols
to other parts of the kernel.
With the module import requirement, it is also easier to spot the
misuse of exported symbols during patch review.
Two new macros are introduced: EXPORT_SYMBOL_NS() and
EXPORT_SYMBOL_NS_GPL(). The API is thoroughly documented in
Documentation/kbuild/namespaces.rst.
- Some small code and kbuild cleanups here and there"
* tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: Remove leftover '#undef' from export header
module: remove unneeded casts in cmp_name()
module: move CONFIG_UNUSED_SYMBOLS to the sub-menu of MODULES
module: remove redundant 'depends on MODULES'
module: Fix link failure due to invalid relocation on namespace offset
usb-storage: export symbols in USB_STORAGE namespace
usb-storage: remove single-use define for debugging
docs: Add documentation for Symbol Namespaces
scripts: Coccinelle script for namespace dependencies.
modpost: add support for generating namespace dependencies
export: allow definition default namespaces in Makefiles or sources
module: add config option MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS
modpost: add support for symbol namespaces
module: add support for symbol namespaces.
export: explicitly align struct kernel_symbol
module: support reading multiple values per modinfo tag
Arnd Bergmann reported false-positive modpost warnings detected by his
randconfig testing of linux-next.
Actually, this happens under the combination of CONFIG_MODVERSIONS
and CONFIG_TRIM_UNUSED_KSYMS since commit 15bfc2348d ("modpost:
check for static EXPORT_SYMBOL* functions").
For example, arch/arm/config/multi_v7_defconfig + CONFIG_MODVERSIONS
+ CONFIG_TRIM_UNUSED_KSYMS produces the following false-positives:
WARNING: "__lshrdi3" [vmlinux] is a static (unknown)
WARNING: "__ashrdi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_lasr" [vmlinux] is a static (unknown)
WARNING: "__aeabi_llsr" [vmlinux] is a static (unknown)
WARNING: "ftrace_set_clr_event" [vmlinux] is a static (unknown)
WARNING: "__muldi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_ulcmp" [vmlinux] is a static (unknown)
WARNING: "__ucmpdi2" [vmlinux] is a static (unknown)
WARNING: "__aeabi_lmul" [vmlinux] is a static (unknown)
WARNING: "__bswapsi2" [vmlinux] is a static (unknown)
WARNING: "__bswapdi2" [vmlinux] is a static (unknown)
WARNING: "__ashldi3" [vmlinux] is a static (unknown)
WARNING: "__aeabi_llsl" [vmlinux] is a static (unknown)
The root cause of the problem is not in the modpost, but in the
implementation of CONFIG_TRIM_UNUSED_KSYMS.
If there is at least one untrimmed symbol in the file, genksyms is
invoked to calculate CRC of *all* the exported symbols in that file
even if some of them have been trimmed due to no caller existing.
As a result, .tmp_*.ver files contain CRC of trimmed symbols, thus
unneeded, orphan __crc* symbols are added to objects. It had been
harmless until recently.
With commit 15bfc2348d ("modpost: check for static EXPORT_SYMBOL*
functions"), it is now harmful because the bogus __crc* symbols make
modpost call sym_update_crc() to add the symbols to the hash table,
but there is no one that clears the ->is_static member.
I gave Fixes to the first commit that uncovered the issue, but the
potential problem has long existed since commit f235541699
("export.h: allow for per-symbol configurable EXPORT_SYMBOL()").
Fixes: 15bfc2348d ("modpost: check for static EXPORT_SYMBOL* functions")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Commit 8651ec01da ("module: add support for symbol namespaces.")
broke linking for arm64 defconfig:
| lib/crypto/arc4.o: In function `__ksymtab_arc4_setkey':
| arc4.c:(___ksymtab+arc4_setkey+0x8): undefined reference to `no symbol'
| lib/crypto/arc4.o: In function `__ksymtab_arc4_crypt':
| arc4.c:(___ksymtab+arc4_crypt+0x8): undefined reference to `no symbol'
This is because the dummy initialisation of the 'namespace_offset' field
in 'struct kernel_symbol' when using EXPORT_SYMBOL on architectures with
support for PREL32 locations uses an offset from an absolute address (0)
in an effort to trick 'offset_to_pointer' into behaving as a NOP,
allowing non-namespaced symbols to be treated in the same way as those
belonging to a namespace.
Unfortunately, place-relative relocations require a symbol reference
rather than an absolute value and, although x86 appears to get away with
this due to placing the kernel text at the top of the address space, it
almost certainly results in a runtime failure if the kernel is relocated
dynamically as a result of KASLR.
Rework 'namespace_offset' so that a value of 0, which cannot occur for a
valid namespaced symbol, indicates that the corresponding symbol does
not belong to a namespace.
Cc: Matthias Maennich <maennich@google.com>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 8651ec01da ("module: add support for symbol namespaces.")
Reported-by: kbuild test robot <lkp@intel.com>
Tested-by: Matthias Maennich <maennich@google.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matthias Maennich <maennich@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
The conditional, define(__KERNEL__), was added by commit f235541699
("export.h: allow for per-symbol configurable EXPORT_SYMBOL()").
It was needed at that time to avoid the build error of modpost
with CONFIG_TRIM_UNUSED_KSYMS=y.
Since commit b2c5cdcfd4 ("modpost: remove symbol prefix support"),
modpost no longer includes linux/export.h, thus the define(__KERNEL__)
is unneeded.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
To avoid excessive usage of EXPORT_SYMBOL_NS(sym, MY_NAMESPACE), where
MY_NAMESPACE will always be the namespace we are exporting to, allow
exporting all definitions of EXPORT_SYMBOL() and friends by defining
DEFAULT_SYMBOL_NAMESPACE.
For example, to export all symbols defined in usb-common into the
namespace USB_COMMON, add a line like this to drivers/usb/common/Makefile:
ccflags-y += -DDEFAULT_SYMBOL_NAMESPACE=USB_COMMON
That is equivalent to changing all EXPORT_SYMBOL(sym) definitions to
EXPORT_SYMBOL_NS(sym, USB_COMMON). Subsequently all symbol namespaces
functionality will apply.
Another way of making use of this feature is to define the namespace
within source or header files similar to how TRACE_SYSTEM defines are
used:
#undef DEFAULT_SYMBOL_NAMESPACE
#define DEFAULT_SYMBOL_NAMESPACE USB_COMMON
Please note that, as opposed to TRACE_SYSTEM, DEFAULT_SYMBOL_NAMESPACE
has to be defined before including include/linux/export.h.
If DEFAULT_SYMBOL_NAMESPACE is defined, a symbol can still be exported
to another namespace by using EXPORT_SYMBOL_NS() and friends with
explicitly specifying the namespace.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Martijn Coenen <maco@android.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
The EXPORT_SYMBOL_NS() and EXPORT_SYMBOL_NS_GPL() macros can be used to
export a symbol to a specific namespace. There are no _GPL_FUTURE and
_UNUSED variants because these are currently unused, and I'm not sure
they are necessary.
I didn't add EXPORT_SYMBOL_NS() for ASM exports; this patch sets the
namespace of ASM exports to NULL by default. In case of relative
references, it will be relocatable to NULL. If there's a need, this
should be pretty easy to add.
A module that wants to use a symbol exported to a namespace must add a
MODULE_IMPORT_NS() statement to their module code; otherwise, modpost
will complain when building the module, and the kernel module loader
will emit an error and fail when loading the module.
MODULE_IMPORT_NS() adds a modinfo tag 'import_ns' to the module. That
tag can be observed by the modinfo command, modpost and kernel/module.c
at the time of loading the module.
The ELF symbols are renamed to include the namespace with an asm label;
for example, symbol 'usb_stor_suspend' in namespace USB_STORAGE becomes
'usb_stor_suspend.USB_STORAGE'. This allows modpost to do namespace
checking, without having to go through all the effort of parsing ELF and
relocation records just to get to the struct kernel_symbols.
On x86_64 I saw no difference in binary size (compression), but at
runtime this will require a word of memory per export to hold the
namespace. An alternative could be to store namespaced symbols in their
own section and use a separate 'struct namespaced_kernel_symbol' for
that section, at the cost of making the module loader more complex.
Co-developed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
This change allows growing struct kernel_symbol without wasting bytes to
alignment. It also concretized the alignment of ksymtab entries if
relative references are used for ksymtab entries.
struct kernel_symbol was already implicitly being aligned to the word
size, except on x86_64 and m68k, where it is aligned to 16 and 2 bytes,
respectively.
As far as I can tell there is no requirement for aligning struct
kernel_symbol to 16 bytes on x86_64, but gcc aligns structs to their
size, and the linker aligns the custom __ksymtab sections to the largest
data type contained within, so setting KSYM_ALIGN to 16 was necessary to
stay consistent with the code generated for non-ASM EXPORT_SYMBOL(). Now
that non-ASM EXPORT_SYMBOL() explicitly aligns to word size (8),
KSYM_ALIGN is no longer necessary.
In case of relative references, the alignment has been changed
accordingly to not waste space when adding new struct members.
As for m68k, struct kernel_symbol is aligned to 2 bytes even though the
structure itself is 8 bytes; using a 4-byte alignment shouldn't hurt.
I manually verified the output of the __ksymtab sections didn't change
on x86, x86_64, arm, arm64 and m68k. As expected, the section contents
didn't change, and the ELF section alignment only changed on x86_64 and
m68k. Feedback from other archs more than welcome.
Co-developed-by: Martijn Coenen <maco@android.com>
Signed-off-by: Martijn Coenen <maco@android.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
My main motivation of this commit is to clean up scripts/Kbuild.include
and scripts/Makefile.build.
Currently, CONFIG_TRIM_UNUSED_KSYMS works with a tricky gimmick;
possibly exported symbols are detected by letting $(CPP) replace
EXPORT_SYMBOL* with a special string '=== __KSYM_*===', which is
post-processed by sed, and passed to fixdep. The extra preprocessing
is costly, and hacking cmd_and_fixdep is ugly.
I came up with a new way to find exported symbols; insert a dummy
symbol __ksym_marker_* to each potentially exported symbol. Those
dummy symbols are picked up by $(NM), post-processed by sed, then
appended to .*.cmd files. I collected the post-process part to a
new shell script scripts/gen_ksymdeps.sh for readability. The dummy
symbols are put into the .discard.* section so that the linker
script rips them off the final vmlinux or modules.
A nice side-effect is building with CONFIG_TRIM_UNUSED_KSYMS will
be much faster.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Pull more Kbuild updates from Masahiro Yamada:
- add build_{menu,n,g,x}config targets for compile-testing Kconfig
- fix and improve recursive dependency detection in Kconfig
- fix parallel building of menuconfig/nconfig
- fix syntax error in clang-version.sh
- suppress distracting log from syncconfig
- remove obsolete "rpm" target
- remove VMLINUX_SYMBOL(_STR) macro entirely
- fix microblaze build with CONFIG_DYNAMIC_FTRACE
- move compiler test for dead code/data elimination to Kconfig
- rename well-known LDFLAGS variable to KBUILD_LDFLAGS
- misc fixes and cleanups
* tag 'kbuild-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: rename LDFLAGS to KBUILD_LDFLAGS
kbuild: pass LDFLAGS to recordmcount.pl
kbuild: test dead code/data elimination support in Kconfig
initramfs: move gen_initramfs_list.sh from scripts/ to usr/
vmlinux.lds.h: remove stale <linux/export.h> include
export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()
Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci
kbuild: make sorting initramfs contents independent of locale
kbuild: remove "rpm" target, which is alias of "rpm-pkg"
kbuild: Fix LOADLIBES rename in Documentation/kbuild/makefiles.txt
kconfig: suppress "configuration written to .config" for syncconfig
kconfig: fix "Can't open ..." in parallel build
kbuild: Add a space after `!` to prevent parsing as file pattern
scripts: modpost: check memory allocation results
kconfig: improve the recursive dependency report
kconfig: report recursive dependency involving 'imply'
kconfig: error out when seeing recursive dependency
kconfig: add build-only configurator targets
scripts/dtc: consolidate include path options in Makefile
An ordinary arm64 defconfig build has ~64 KB worth of __ksymtab entries,
each consisting of two 64-bit fields containing absolute references, to
the symbol itself and to a char array containing its name, respectively.
When we build the same configuration with KASLR enabled, we end up with an
additional ~192 KB of relocations in the .init section, i.e., one 24 byte
entry for each absolute reference, which all need to be processed at boot
time.
Given how the struct kernel_symbol that describes each entry is completely
local to module.c (except for the references emitted by EXPORT_SYMBOL()
itself), we can easily modify it to contain two 32-bit relative references
instead. This reduces the size of the __ksymtab section by 50% for all
64-bit architectures, and gets rid of the runtime relocations entirely for
architectures implementing KASLR, either via standard PIE linking (arm64)
or using custom host tools (x86).
Note that the binary search involving __ksymtab contents relies on each
section being sorted by symbol name. This is implemented based on the
input section names, not the names in the ksymtab entries, so this patch
does not interfere with that.
Given that the use of place-relative relocations requires support both in
the toolchain and in the module loader, we cannot enable this feature for
all architectures. So make it dependent on whether
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS is defined.
Link: http://lkml.kernel.org/r/20180704083651.24360-4-ard.biesheuvel@linaro.org
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Jessica Yu <jeyu@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morris <james.morris@microsoft.com>
Cc: James Morris <jmorris@namei.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Garnier <thgarnie@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With the special case handling for Blackfin and Metag was removed by
commit 94e58e0ac3 ("export.h: remove code for prefixing symbols with
underscore"), VMLINUX_SYMBOL() is no-op.
Replace the remaining usages, then remove the definition of
VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX was selected by BLACKFIN, METAG.
They were removed by commit 4ba66a9760 ("arch: remove blackfin port"),
commit bb6fb6dfcc ("metag: Remove arch/metag/"), respectively.
No more architecture enables CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.
Clean up the export.h headers. I am keeping VMLINUX_SYMBOL() and
VMLINUX_SYMBOL_STR() because they are widely used.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
The previous patch introduced a separate inline asm version of the
krcrctab declaration template for use with 64-bit architectures, which
cannot refer to ELF symbols using 32-bit quantities.
This declaration should be equivalent to the C one for 32-bit
architectures, but just in case - unify them in a separate patch, which
can simply be dropped if it turns out to break anything.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The modversion symbol CRCs are emitted as ELF symbols, which allows us
to easily populate the kcrctab sections by relying on the linker to
associate each kcrctab slot with the correct value.
This has a couple of downsides:
- Given that the CRCs are treated as memory addresses, we waste 4 bytes
for each CRC on 64 bit architectures,
- On architectures that support runtime relocation, a R_<arch>_RELATIVE
relocation entry is emitted for each CRC value, which identifies it
as a quantity that requires fixing up based on the actual runtime
load offset of the kernel. This results in corrupted CRCs unless we
explicitly undo the fixup (and this is currently being handled in the
core module code)
- Such runtime relocation entries take up 24 bytes of __init space
each, resulting in a x8 overhead in [uncompressed] kernel size for
CRCs.
Switching to explicit 32 bit values on 64 bit architectures fixes most
of these issues, given that 32 bit values are not treated as quantities
that require fixing up based on the actual runtime load offset. Note
that on some ELF64 architectures [such as PPC64], these 32-bit values
are still emitted as [absolute] runtime relocatable quantities, even if
the value resolves to a build time constant. Since relative relocations
are always resolved at build time, this patch enables MODULE_REL_CRCS on
powerpc when CONFIG_RELOCATABLE=y, which turns the absolute CRC
references into relative references into .rodata where the actual CRC
value is stored.
So redefine all CRC fields and variables as u32, and redefine the
__CRC_SYMBOL() macro for 64 bit builds to emit the CRC reference using
inline assembler (which is necessary since 64-bit C code cannot use
32-bit types to hold memory addresses, even if they are ultimately
resolved using values that do not exceed 0xffffffff). To avoid
potential problems with legacy 32-bit architectures using legacy
toolchains, the equivalent C definition of the kcrctab entry is retained
for 32-bit architectures.
Note that this mostly reverts commit d4703aefdb ("module: handle ppc64
relocating kcrctabs when CONFIG_RELOCATABLE=y")
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull kbuild updates from Michal Marek:
- EXPORT_SYMBOL for asm source by Al Viro.
This does bring a regression, because genksyms no longer generates
checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is
working on a patch to fix this.
Plus, we are talking about functions like strcpy(), which rarely
change prototypes.
- Fixes for PPC fallout of the above by Stephen Rothwell and Nick
Piggin
- fixdep speedup by Alexey Dobriyan.
- preparatory work by Nick Piggin to allow architectures to build with
-ffunction-sections, -fdata-sections and --gc-sections
- CONFIG_THIN_ARCHIVES support by Stephen Rothwell
- fix for filenames with colons in the initramfs source by me.
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits)
initramfs: Escape colons in depfile
ppc: there is no clear_pages to export
powerpc/64: whitelist unresolved modversions CRCs
kbuild: -ffunction-sections fix for archs with conflicting sections
kbuild: add arch specific post-link Makefile
kbuild: allow archs to select link dead code/data elimination
kbuild: allow architectures to use thin archives instead of ld -r
kbuild: Regenerate genksyms lexer
kbuild: genksyms fix for typeof handling
fixdep: faster CONFIG_ search
ia64: move exports to definitions
sparc32: debride memcpy.S a bit
[sparc] unify 32bit and 64bit string.h
sparc: move exports to definitions
ppc: move exports to definitions
arm: move exports to definitions
s390: move exports to definitions
m68k: move exports to definitions
alpha: move exports to actual definitions
x86: move exports to actual definitions
...
Introduce LD_DEAD_CODE_DATA_ELIMINATION option for architectures to
select to build with -ffunction-sections, -fdata-sections, and link
with --gc-sections. It requires some work (documented) to ensure all
unreferenced entrypoints are live, and requires toolchain and build
verification, so it is made a per-arch option for now.
On a random powerpc64le build, this yelds a significant size saving,
it boots and runs fine, but there is a lot I haven't tested as yet, so
these savings may be reduced if there are bugs in the link.
text data bss dec filename
11169741 1180744 1923176 14273661 vmlinux
10445269 1004127 1919707 13369103 vmlinux.dce
~700K text, ~170K data, 6% removed from kernel image size.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.com>
Here the need is for a macro that checks whether the given symbol is
defined or not, which has nothing to do with config.
The new macro __is_defined() is a better fit for this case.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Michal Marek <mmarek@suse.com>
Like with kconfig options, we now have the ability to compile in and
out individual EXPORT_SYMBOL() declarations based on the content of
include/generated/autoksyms.h. However we don't want the entire
world to be rebuilt whenever that file is touched.
Let's apply the same build dependency trick used for CONFIG_* symbols
where the time stamp of empty files whose paths matching those symbols
is used to trigger fine grained rebuilds. In our case the key is the
symbol name passed to EXPORT_SYMBOL().
However, unlike config options, we cannot just use fixdep to parse
the source code for EXPORT_SYMBOL(ksym) because several variants exist
and parsing them all in a separate tool, and keeping it in synch, is
not trivially maintainable. Furthermore, there are variants such as
EXPORT_SYMBOL_GPL(pci_user_read_config_##size);
that are instanciated via a macro for which we can't easily determine
the actual exported symbol name(s) short of actually running the
preprocessor on them.
Storing the symbol name string in a special ELF section doesn't work
for targets that output assembly or preprocessed source.
So the best way is really to leverage the preprocessor by having it
output actual symbol names anchored by a special sequence that can be
easily filtered out. Then the list of symbols is simply fed to fixdep
to be merged with the other dependencies.
That implies the preprocessor is executed twice for each source file.
A previous attempt relied on a warning pragma for each EXPORT_SYMBOL()
instance that was filtered apart from stderr by the build system with
a sed script during the actual compilation pass. Unfortunately the
preprocessor/compiler diagnostic output isn't stable between versions
and this solution, although more efficient, was deemed too fragile.
Because of the lowercasing performed by fixdep, there might be name
collisions triggering spurious rebuilds for similar symbols. But this
shouldn't be a big issue in practice. (This is the case for CONFIG_*
symbols and I didn't want to be different here, whatever the original
reason for doing so.)
To avoid needless build overhead, the exported symbol name gathering is
performed only when CONFIG_TRIM_UNUSED_KSYMS is selected.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Similar to include/generated/autoconf.h, include/generated/autoksyms.h
will contain a list of defines for each EXPORT_SYMBOL() that we want
active. The format is:
#define __KSYM_<symbol_name> 1
This list will be auto-generated with another patch. For now we only
include the preprocessor magic to automatically create or omit the
corresponding struct kernel_symbol declaration.
Given the content of include/generated/autoksyms.h may not be known in
advance, an empty file is created early on to let the build proceed.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
sparse complains about any __ksymtab symbols with the following:
warning: symbol '__ksymtab_...' was not declared. Should it be static?
due to Andi's patch making it non-static.
Mollify sparse by declaring the symbol extern, otherwise we get
drowned in sparse warnings for anything that uses EXPORT_SYMBOL
in the sources, making it easy to miss real warnings.
Fixes: e0f244c63f ("asmlinkage, module: Make ksymtab [...] __visible")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Make the ksymtab symbols for EXPORT_SYMBOL visible.
This prevents the LTO compiler from adding a .NUMBER prefix,
which avoids various problems in later export processing.
Cc: rusty@rustcorp.com.au
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have CONFIG_SYMBOL_PREFIX, which three archs define to the string
"_". But Al Viro broke this in "consolidate cond_syscall and
SYSCALL_ALIAS declarations" (in linux-next), and he's not the first to
do so.
Using CONFIG_SYMBOL_PREFIX is awkward, since we usually just want to
prefix it so something. So various places define helpers which are
defined to nothing if CONFIG_SYMBOL_PREFIX isn't set:
1) include/asm-generic/unistd.h defines __SYMBOL_PREFIX.
2) include/asm-generic/vmlinux.lds.h defines VMLINUX_SYMBOL(sym)
3) include/linux/export.h defines MODULE_SYMBOL_PREFIX.
4) include/linux/kernel.h defines SYMBOL_PREFIX (which differs from #7)
5) kernel/modsign_certificate.S defines ASM_SYMBOL(sym)
6) scripts/modpost.c defines MODULE_SYMBOL_PREFIX
7) scripts/Makefile.lib defines SYMBOL_PREFIX on the commandline if
CONFIG_SYMBOL_PREFIX is set, so that we have a non-string version
for pasting.
(arch/h8300/include/asm/linkage.h defines SYMBOL_NAME(), too).
Let's solve this properly:
1) No more generic prefix, just CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX.
2) Make linux/export.h usable from asm.
3) Define VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR().
4) Make everyone use them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Tested-by: James Hogan <james.hogan@imgtec.com> (metag)
A lot of files pull in module.h when all they are really
looking for is the basic EXPORT_SYMBOL functionality. The
recent data from Ingo[1] shows that this is one of several
instances that has a significant impact on compile times,
and it should be targeted for factoring out (as done here).
Note that several commonly used header files in include/*
directly include <linux/module.h> themselves (some 34 of them!)
The most commonly used ones of these will have to be made
independent of module.h before the full benefit of this change
can be realized.
We also transition THIS_MODULE from module.h to export.h,
since there are lots of files with subsystem structs that
in turn will have a struct module *owner and only be doing:
.owner = THIS_MODULE;
and absolutely nothing else modular. So, we also want to have
the THIS_MODULE definition present in the lightweight header.
[1] https://lkml.org/lkml/2011/5/23/76
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Greg Kroah-Hartman
Peter Zijlstra
Masahiro Yamada
Sami Tolvanen
Linus Torvalds
Greg Kroah-Hartman
Quentin Perret
Christoph Hellwig
Joe Perches
Nick Desaulniers
Jessica Yu
Masahiro Yamada
Matthias Maennich
Will Deacon
Ard Biesheuvel
Nicholas Piggin
Nicolas Pitre
Johannes Berg
Andi Kleen
Rusty Russell
Paul Gortmaker