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authorArjan van de Ven <arjan@infradead.org>2011-10-31 07:28:57 -0700
committerDave Airlie <airlied@redhat.com>2011-11-11 11:14:47 +0000
commite08e96de986ceb2c6b683df0bd0c4ddd4f91dcfd (patch)
tree632e9e5dc117204b0f1e78f57be6abdc6f4750f3 /drivers/gpu/drm/mga
parentd68752cf7bb92eafbbe6a0df0d0fab67e87523f6 (diff)
downloadlinux-e08e96de986ceb2c6b683df0bd0c4ddd4f91dcfd.tar.bz2
drm: Make the per-driver file_operations struct const
From fdf1fdebaa00f81de18c227f32f8074c8b352d50 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven <arjan@linux.intel.com> Date: Sun, 30 Oct 2011 19:06:07 -0700 Subject: [PATCH] drm: Make the per-driver file_operations struct const The DRM layer keeps a copy of struct file_operations inside its big driver struct... which prevents it from being consistent and static. For consistency (and the general security objective of having such things static), it's desirable to get this fixed. This patch splits out the file_operations field to its own struct, which is then "static const", and just stick a pointer to this into the driver struct, making it more consistent with how the rest of the kernel does this. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/mga')
-rw-r--r--drivers/gpu/drm/mga/mga_drv.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
index 33daa29eea66..f9a925d58819 100644
--- a/drivers/gpu/drm/mga/mga_drv.c
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -44,6 +44,20 @@ static struct pci_device_id pciidlist[] = {
mga_PCI_IDS
};
+static const struct file_operations mga_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = mga_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
@@ -64,20 +78,7 @@ static struct drm_driver driver = {
.reclaim_buffers = drm_core_reclaim_buffers,
.ioctls = mga_ioctls,
.dma_ioctl = mga_dma_buffers,
- .fops = {
- .owner = THIS_MODULE,
- .open = drm_open,
- .release = drm_release,
- .unlocked_ioctl = drm_ioctl,
- .mmap = drm_mmap,
- .poll = drm_poll,
- .fasync = drm_fasync,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = mga_compat_ioctl,
-#endif
- .llseek = noop_llseek,
- },
-
+ .fops = &mga_driver_fops,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,