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authorKusanagi Kouichi <slash@ac.auone-net.jp>2019-11-21 19:20:21 +0900
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-10-01 13:17:21 +0200
commit80f7667422447a146f55b26e7b453354cccdc642 (patch)
treee6d0dc216be2634e435375eab5bb60343763c899
parent14bbbfbafef1840df6ef5464a8b1db1307491aed (diff)
debugfs: Fix !DEBUG_FS debugfs_create_automount
[ Upstream commit 4250b047039d324e0ff65267c8beb5bad5052a86 ] If DEBUG_FS=n, compile fails with the following error: kernel/trace/trace.c: In function 'tracing_init_dentry': kernel/trace/trace.c:8658:9: error: passing argument 3 of 'debugfs_create_automount' from incompatible pointer type [-Werror=incompatible-pointer-types] 8658 | trace_automount, NULL); | ^~~~~~~~~~~~~~~ | | | struct vfsmount * (*)(struct dentry *, void *) In file included from kernel/trace/trace.c:24: ./include/linux/debugfs.h:206:25: note: expected 'struct vfsmount * (*)(void *)' but argument is of type 'struct vfsmount * (*)(struct dentry *, void *)' 206 | struct vfsmount *(*f)(void *), | ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp> Link: https://lore.kernel.org/r/20191121102021787.MLMY.25002.ppp.dion.ne.jp@dmta0003.auone-net.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--include/linux/debugfs.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 58424eb3b329..798f0b9b43ae 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -54,6 +54,8 @@ static const struct file_operations __fops = { \
.llseek = no_llseek, \
}
+typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
+
#if defined(CONFIG_DEBUG_FS)
struct dentry *debugfs_lookup(const char *name, struct dentry *parent);
@@ -75,7 +77,6 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
const char *dest);
-typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
struct dentry *debugfs_create_automount(const char *name,
struct dentry *parent,
debugfs_automount_t f,
@@ -203,7 +204,7 @@ static inline struct dentry *debugfs_create_symlink(const char *name,
static inline struct dentry *debugfs_create_automount(const char *name,
struct dentry *parent,
- struct vfsmount *(*f)(void *),
+ debugfs_automount_t f,
void *data)
{
return ERR_PTR(-ENODEV);