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authorRichard Kennedy <richard@rsk.demon.co.uk>2009-03-18 17:26:44 +0000
committerDave Airlie <airlied@redhat.com>2009-03-29 18:31:45 +1000
commitc972d750e4fa3bfee6e7d3635729bf8c9cbb8f0a (patch)
tree21636305d6828368d5b4d60a34ab0f1e3dca4a51
parent40fc6eab599d0087a75fc77eaaf04d769b667f6d (diff)
drm: reorder struct drm_ioctl_desc to save space on 64 bit builds
shrinks drm_ioctl_desc from 24 bytes to 16 bytes by reordering members to remove padding. updates DRM_IOCTL_DEF macro to initialise structure members by name to handle the structure reorder. The applied patch reduces data used in drm.ko from 10440 to 9032 Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r--include/drm/drmP.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index ccbcd13b6ed..c8c42215143 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -281,16 +281,16 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
struct drm_ioctl_desc {
unsigned int cmd;
- drm_ioctl_t *func;
int flags;
+ drm_ioctl_t *func;
};
/**
* Creates a driver or general drm_ioctl_desc array entry for the given
* ioctl, for use by drm_ioctl().
*/
-#define DRM_IOCTL_DEF(ioctl, func, flags) \
- [DRM_IOCTL_NR(ioctl)] = {ioctl, func, flags}
+#define DRM_IOCTL_DEF(ioctl, _func, _flags) \
+ [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags}
struct drm_magic_entry {
struct list_head head;