arch_post_acpi_subsys_init() reads MSR_K8_INT_PENDING_MSG with rdmsr()
into a lo/hi pair but only uses the low 32 bits: K8_INTP_C1E_ACTIVE_MASK
(0x18000000) lies entirely within them. The 'hi' half is never consumed,
which triggers a -Wunused-but-set-variable warning under W=1:
arch/x86/kernel/process.c: In function 'arch_post_acpi_subsys_init':
arch/x86/kernel/process.c:972:17: warning: variable 'hi' set but not used
Read the full MSR into a single u64 with rdmsrq() and test the mask
against it, dropping the now-unnecessary lo/hi variables.
No functional change intended.
Signed-off-by: HyeongJun An <sammiee5311@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Jürgen Groß <jgross@suse.com>
Link: https://patch.msgid.link/20260604150052.3337246-1-sammiee5311@gmail.com
HyeongJun An
10a5d65856