Most place actually want to just check for dev->agp (most do, but a few don't so this fixes a few potential NULL derefs). The only exception is the agp init code which should check for the AGP driver feature flag.
Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/drm_agpsupport.c | 2 +- drivers/gpu/drm/drm_bufs.c | 4 ++-- drivers/gpu/drm/drm_memory.c | 9 +++------ drivers/gpu/drm/drm_pci.c | 4 ++-- drivers/gpu/drm/drm_vm.c | 4 ++-- drivers/gpu/drm/radeon/radeon_ttm.c | 2 +- include/drm/drm_agpsupport.h | 12 ------------ 7 files changed, 11 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c index e301d653d97e..084a674e4b56 100644 --- a/drivers/gpu/drm/drm_agpsupport.c +++ b/drivers/gpu/drm/drm_agpsupport.c @@ -439,7 +439,7 @@ void drm_agp_clear(struct drm_device *dev) { struct drm_agp_mem *entry, *tempe;
- if (!drm_core_has_AGP(dev) || !dev->agp) + if (!dev->agp) return; if (drm_core_check_feature(dev, DRIVER_MODESET)) return; diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 766a5474fdbd..edec31fe3fed 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -261,7 +261,7 @@ static int drm_addmap_core(struct drm_device * dev, resource_size_t offset, struct drm_agp_mem *entry; int valid = 0;
- if (!drm_core_has_AGP(dev)) { + if (!dev->agp) { kfree(map); return -EINVAL; } @@ -1390,7 +1390,7 @@ int drm_mapbufs(struct drm_device *dev, void *data, spin_unlock(&dev->count_lock);
if (request->count >= dma->buf_count) { - if ((drm_core_has_AGP(dev) && (dma->flags & _DRM_DMA_USE_AGP)) + if ((dev->agp && (dma->flags & _DRM_DMA_USE_AGP)) || (drm_core_check_feature(dev, DRIVER_SG) && (dma->flags & _DRM_DMA_USE_SG))) { struct drm_local_map *map = dev->agp_buffer_map; diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c index 64e44fad8ae8..3359bc453e11 100644 --- a/drivers/gpu/drm/drm_memory.c +++ b/drivers/gpu/drm/drm_memory.c @@ -110,8 +110,7 @@ static inline void *agp_remap(unsigned long offset, unsigned long size,
void drm_core_ioremap(struct drm_local_map *map, struct drm_device *dev) { - if (drm_core_has_AGP(dev) && - dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) + if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) map->handle = agp_remap(map->offset, map->size, dev); else map->handle = ioremap(map->offset, map->size); @@ -120,8 +119,7 @@ EXPORT_SYMBOL(drm_core_ioremap);
void drm_core_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) { - if (drm_core_has_AGP(dev) && - dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) + if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) map->handle = agp_remap(map->offset, map->size, dev); else map->handle = ioremap_wc(map->offset, map->size); @@ -133,8 +131,7 @@ void drm_core_ioremapfree(struct drm_local_map *map, struct drm_device *dev) if (!map->handle || !map->size) return;
- if (drm_core_has_AGP(dev) && - dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) + if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) vunmap(map->handle); else iounmap(map->handle); diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 3bd8b3fc6189..4ec43b8d42f5 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -264,7 +264,7 @@ static int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
static void drm_pci_agp_init(struct drm_device *dev) { - if (drm_core_has_AGP(dev)) { + if (drm_core_check_feature(dev, DRIVER_USE_AGP)) { if (drm_pci_device_is_agp(dev)) dev->agp = drm_agp_init(dev); if (dev->agp) { @@ -278,7 +278,7 @@ static void drm_pci_agp_init(struct drm_device *dev)
static void drm_pci_agp_destroy(struct drm_device *dev) { - if (drm_core_has_AGP(dev) && dev->agp) { + if (dev->agp) { arch_phys_wc_del(dev->agp->agp_mtrr); drm_agp_clear(dev); drm_agp_destroy(dev->agp); diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c index efd424da7be6..008c8c0e221f 100644 --- a/drivers/gpu/drm/drm_vm.c +++ b/drivers/gpu/drm/drm_vm.c @@ -101,7 +101,7 @@ static int drm_do_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) /* * Find the right map */ - if (!drm_core_has_AGP(dev)) + if (!dev->agp) goto vm_fault_error;
if (!dev->agp || !dev->agp->cant_use_aperture) @@ -592,7 +592,7 @@ int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) switch (map->type) { #if !defined(__arm__) case _DRM_AGP: - if (drm_core_has_AGP(dev) && dev->agp->cant_use_aperture) { + if (dev->agp && dev->agp->cant_use_aperture) { /* * On some platforms we can't talk to bus dma address from the CPU, so for * memory of type DRM_AGP, we'll deal with sorting out the real physical diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 71245d6f34a2..051fa874065a 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -142,7 +142,7 @@ static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA; #if __OS_HAS_AGP if (rdev->flags & RADEON_IS_AGP) { - if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) { + if (!rdev->ddev->agp) { DRM_ERROR("AGP is not enabled for memory type %u\n", (unsigned)type); return -EINVAL; diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h index a184eeee9c96..a12b0e011e44 100644 --- a/include/drm/drm_agpsupport.h +++ b/include/drm/drm_agpsupport.h @@ -46,12 +46,6 @@ int drm_agp_unbind_ioctl(struct drm_device *dev, void *data, int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); int drm_agp_bind_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); - -static inline int drm_core_has_AGP(struct drm_device *dev) -{ - return drm_core_check_feature(dev, DRIVER_USE_AGP); -} - #else /* __OS_HAS_AGP */
static inline void drm_free_agp(DRM_AGP_MEM * handle, int pages) @@ -183,12 +177,6 @@ static inline int drm_agp_bind_ioctl(struct drm_device *dev, void *data, { return -ENODEV; } - -static inline int drm_core_has_AGP(struct drm_device *dev) -{ - return 0; -} - #endif /* __OS_HAS_AGP */
#endif /* _DRM_AGPSUPPORT_H_ */