Commit 9280cdd6 authored by Mark Charlebois's avatar Mark Charlebois Committed by Al Viro

fs: compat: Remove warning from COMPATIBLE_IOCTL

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 <>
Signed-off-by: default avatarMark Charlebois <>
Signed-off-by: default avatarBehan Webster <>
Signed-off-by: default avatarMatthias Kaehlcke <>
Acked-by: default avatarArnd Bergmann <>
Signed-off-by: default avatarAl Viro <>
parent 0b33540f
......@@ -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
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