[PATCH] drm: Fix the .fault functions

[Fabio Estevam]

Commit 25d3db7600b87a4 ("mm, fs: reduce fault, page_mkwrite, and
pfn_mkwrite to take only vmf") causes the following build failure with
arm allmodconfig:

drivers/gpu/drm/armada/armada_gem.c:38:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
drivers/gpu/drm/etnaviv/etnaviv_drv.c:474:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
drivers/gpu/drm/etnaviv/etnaviv_gem.c:178:5: error: conflicting types for 'etnaviv_gem_fault'
drivers/gpu/drm/omapdrm/omap_drv.c:787:11: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
drivers/gpu/drm/omapdrm/omap_gem.c:531:5: error: conflicting types for 'omap_gem_fault'

Fix the conversion in some drm drivers.

Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>
---
This build failure is from linux-next 20170125.

 drivers/gpu/drm/armada/armada_gem.c   | 3 ++-
 drivers/gpu/drm/etnaviv/etnaviv_drv.h | 2 +-
 drivers/gpu/drm/omapdrm/omap_drv.h    | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index a293c8b..1ec0419 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -14,8 +14,9 @@
 #include <drm/armada_drm.h>
 #include "armada_ioctlP.h"
 
-static int armada_gem_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+static int armada_gem_vm_fault(struct vm_fault *vmf)
 {
+	struct vm_area_struct *vma = vmf->vma;
 	struct armada_gem_object *obj = drm_to_armada_gem(vma->vm_private_data);
 	unsigned long pfn = obj->phys_addr >> PAGE_SHIFT;
 	int ret;
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
index c255eda..e41f386 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
@@ -73,7 +73,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 		struct drm_file *file);
 
 int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-int etnaviv_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+int etnaviv_gem_fault(struct vm_fault *vmf);
 int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
 struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
 void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
index 7d9dd54..7a8f4bf 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.h
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -204,7 +204,7 @@ int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 int omap_gem_mmap_obj(struct drm_gem_object *obj,
 		struct vm_area_struct *vma);
-int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+int omap_gem_fault(struct vm_fault *vmf);
 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
-- 
2.7.4