diff options
| author | Mark Charlebois <charlebm@gmail.com> | 2017-04-28 15:15:12 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-08 12:12:44 +0200 |
| commit | a9b2c4a8f4bfd960d8c2dbe70e73c903309050a3 (patch) | |
| tree | 971e98e15d6ad78921cfe0fcf6af0bcd08d37601 /fs/compat_ioctl.c | |
| parent | 00972acdcf70f21548d9aa7915f7ceacf87dcf05 (diff) | |
fs: compat: Remove warning from COMPATIBLE_IOCTL
commit 9280cdd6fe5b8287a726d24cc1d558b96c8491d7 upstream.
cmd in COMPATIBLE_IOCTL is always a u32, so cast it so there isn't a
warning about an overflow in XFORM.
From: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/compat_ioctl.c')
| -rw-r--r-- | fs/compat_ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index f2d7402abe02..93c8e4a4bbd3 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -833,7 +833,7 @@ static int compat_ioctl_preallocate(struct file *file, */ #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff) -#define COMPATIBLE_IOCTL(cmd) XFORM(cmd), +#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd), /* ioctl should not be warned about even if it's not implemented. Valid reasons to use this: - It is implemented with ->compat_ioctl on some device, but programs |