vfs: make first argument of dir_context.actor typed

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 3 insertions, 2 deletions

diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 3963ede84eb0..c5d6bb939d19 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -702,10 +702,11 @@ static int fat_readdir(struct file *file, struct dir_context *ctx)
 }
 
 #define FAT_IOCTL_FILLDIR_FUNC(func, dirent_type)                          \
-static int func(void *__buf, const char *name, int name_len,               \
+static int func(struct dir_context *ctx, const char *name, int name_len,   \
                              loff_t offset, u64 ino, unsigned int d_type)  \
 {                                                                          \
-        struct fat_ioctl_filldir_callback *buf = __buf;                    \
+        struct fat_ioctl_filldir_callback *buf =                           \
+                container_of(ctx, struct fat_ioctl_filldir_callback, ctx); \
         struct dirent_type __user *d1 = buf->dirent;                       \
         struct dirent_type __user *d2 = d1 + 1;                            \
                                                                            \