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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 <dualli@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20250727182932.2499194-5-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Li 2025-07-27 18:29:07 +00:00 committed by Greg Kroah-Hartman
parent 63740349eb
commit f37b55ded8
2 changed files with 9 additions and 0 deletions
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8
drivers/android/binderfs.c
View File

@ -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)
@ -601,6 +603,12 @@ 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;
}

1
tools/testing/selftests/filesystems/binderfs/binderfs_test.c
View File

@ -65,6 +65,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
"oneway_spam_detection",
"extended_error",
"freeze_notification",
"transaction_report",
};
change_mountns(_metadata);