From: Andi Kleen Date: Wed, 2 May 2007 17:27:20 +0000 (+0200) Subject: [PATCH] x86-64: Define IGNORE_IOCTL() macro for compat_ioctls X-Git-Tag: firefly_0821_release~30161^2~27 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=421f028100cbef0ba15086d63cad87fb6e5c3da9;p=firefly-linux-kernel-4.4.55.git [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 --- 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