From 4b0bb18d1ff9fd9139af15b01830b652dace3015 Mon Sep 17 00:00:00 2001 From: Li Li Date: Sun, 27 Jul 2025 18:29:07 +0000 Subject: [PATCH] FROMGIT: binder: add transaction_report feature entry Add "transaction_report" to the binderfs feature list, to help userspace determine if the "BINDER_CMD_REPORT" generic netlink api is supported by the binder driver. Signed-off-by: Li Li Signed-off-by: Carlos Llamas Link: https://lore.kernel.org/r/20250727182932.2499194-5-cmllamas@google.com Signed-off-by: Greg Kroah-Hartman Bug: 372832477 (cherry picked from commit f37b55ded8ed35424ebb91a4d012527071e1f601 git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git char-misc-next) Change-Id: I0793b68e6f96283d47e3d44dcc68f248495dbcb3 Signed-off-by: Carlos Llamas --- drivers/android/binderfs.c | 8 ++++++++ .../selftests/filesystems/binderfs/binderfs_test.c | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c index fdd4545e9532..46f767b2752a 100644 --- a/drivers/android/binderfs.c +++ b/drivers/android/binderfs.c @@ -59,6 +59,7 @@ struct binder_features { bool oneway_spam_detection; bool extended_error; bool freeze_notification; + bool transaction_report; }; static const struct constant_table binderfs_param_stats[] = { @@ -76,6 +77,7 @@ static struct binder_features binder_features = { .oneway_spam_detection = true, .extended_error = true, .freeze_notification = true, + .transaction_report = true, }; static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb) @@ -616,6 +618,12 @@ static int init_binder_features(struct super_block *sb) if (IS_ERR(dentry)) return PTR_ERR(dentry); + dentry = binderfs_create_file(dir, "transaction_report", + &binder_features_fops, + &binder_features.transaction_report); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + return 0; } diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 1e51041f4108..339df4c18259 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -66,6 +66,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata) "oneway_spam_detection", "extended_error", "freeze_notification", + "transaction_report", }; change_mountns(_metadata);