autofs: remove duplicated AUTOFS_DEV_IOCTL_SIZE definition

This macro is already defined in uapi header.  Also use this macro where
possible.

Link: http://lkml.kernel.org/r/148577166656.9801.10322423666945951186.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi <tkusumi@tuxera.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 6f48d67..806df74 100644 (file)
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -38,8 +38,6 @@
  * which have been left busy at at service shutdown.
  */
 
-#define AUTOFS_DEV_IOCTL_SIZE  sizeof(struct autofs_dev_ioctl)
-
 typedef int (*ioctl_fn)(struct file *, struct autofs_sb_info *,
                        struct autofs_dev_ioctl *);
 

diff --git a/include/uapi/linux/auto_dev-ioctl.h b/include/uapi/linux/auto_dev-ioctl.h
index af107aa..744b3d0 100644 (file)
--- a/include/uapi/linux/auto_dev-ioctl.h
+++ b/include/uapi/linux/auto_dev-ioctl.h
@@ -113,10 +113,10 @@ struct autofs_dev_ioctl {
 
 static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
 {
-       memset(in, 0, sizeof(struct autofs_dev_ioctl));
+       memset(in, 0, AUTOFS_DEV_IOCTL_SIZE);
        in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
        in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
-       in->size = sizeof(struct autofs_dev_ioctl);
+       in->size = AUTOFS_DEV_IOCTL_SIZE;
        in->ioctlfd = -1;
 }