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authorAndi Kleen <ak@suse.de>2007-05-02 21:27:20 +0400
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 21:27:20 +0400
commit421f028100cbef0ba15086d63cad87fb6e5c3da9 (patch)
tree18174d51cce6ebeaf89e8fa83850d4d22d62c3eb /fs
parent05cb007dac9a50148daf87d0b9469e0cd05fd5e7 (diff)
downloadlinux-421f028100cbef0ba15086d63cad87fb6e5c3da9.tar.xz
[PATCH] x86-64: Define IGNORE_IOCTL() macro for compat_ioctls
Define a new IGNORE_IOCTL() to let a compat ioctl not be warned about even when it is not implemented. This is the same as COMPATIBLE_IOCTL internally, but better self documentng. Valid reasons to use this: - It is implemented with ->compat_ioctl on some device, but programs call it on others too. - The ioctl is not implemented in the native kernel, but programs call it commonly anyways. Most other reasons are not valid. Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'fs')
-rw-r--r--fs/compat_ioctl.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index c68b055fa26e..c5a4f5459a07 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -2396,6 +2396,14 @@ lp_timeout_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
#define ULONG_IOCTL(cmd) \
{ (cmd), (ioctl_trans_handler_t)sys_ioctl },
+/* 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
+ call it on others too.
+ - The ioctl is not implemented in the native kernel, but programs
+ call it commonly anyways.
+ Most other reasons are not valid. */
+#define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)
struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>