From d23386ed7019d50164fa2066aae8656097a02425 Mon Sep 17 00:00:00 2001 From: Carlos Llamas Date: Fri, 29 Apr 2022 23:56:42 +0000 Subject: binderfs: add extended_error feature entry 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. Reviewed-by: Christian Brauner (Microsoft) Acked-by: Todd Kjos Signed-off-by: Carlos Llamas Link: https://lore.kernel.org/r/20220429235644.697372-4-cmllamas@google.com Signed-off-by: Greg Kroah-Hartman --- drivers/android/binderfs.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/android') 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; } -- cgit v1.2.3