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 <[email protected]>
---
fs/compat_ioctl.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux/fs/compat_ioctl.c
===================================================================
--- linux.orig/fs/compat_ioctl.c
+++ linux/fs/compat_ioctl.c
@@ -2396,6 +2396,14 @@ lp_timeout_trans(unsigned int fd, unsign
#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>
-
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