Add extended_error to the binderfs feature list, to help userspace
determine whether the BINDER_GET_EXTENDED_ERROR ioctl is supported by
the binder driver.
Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx>
---
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 e3605cdd4335..6c5e94f6cb3a 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -60,6 +60,7 @@ enum binderfs_stats_mode {
struct binder_features {
bool oneway_spam_detection;
+ bool extended_error;
};
static const struct constant_table binderfs_param_stats[] = {
@@ -75,6 +76,7 @@ static const struct fs_parameter_spec binderfs_fs_parameters[] = {
static struct binder_features binder_features = {
.oneway_spam_detection = true,
+ .extended_error = true,
};
static inline struct binderfs_info *BINDERFS_SB(const struct super_block *sb)
@@ -615,6 +617,12 @@ static int init_binder_features(struct super_block *sb)
if (IS_ERR(dentry))
return PTR_ERR(dentry);
+ dentry = binderfs_create_file(dir, "extended_error",
+ &binder_features_fops,
+ &binder_features.extended_error);
+ 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 0315955ff0f4..9409bb136d95 100644
--- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -64,6 +64,7 @@ static int __do_binderfs_test(struct __test_metadata *_metadata)
device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
static const char * const binder_features[] = {
"oneway_spam_detection",
+ "extended_error",
};
change_mountns(_metadata);
--
2.36.0.464.gb9c8b46e94-goog
