From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 27 Oct 2013 21:52:39 +0000 (+0000)
Subject: drm: Pass pointers to virt_to_page()
X-Git-Tag: v4.9.8~7179^2~138
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e1e78533f2ddeabef5dc6545739211795ac4b822;p=platform%2Fkernel%2Flinux-rpi3.git

drm: Pass pointers to virt_to_page()

Most architectures define virt_to_page() as a macro that casts its
argument such that an argument of type unsigned long will be accepted
without complaint.  However, the proper type is void *, and passing
unsigned long results in a warning on MIPS.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index f00d7a9..0267979 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -80,7 +80,7 @@ drm_dma_handle_t *drm_pci_alloc(struct drm_device * dev, size_t size, size_t ali
 	/* Reserve */
 	for (addr = (unsigned long)dmah->vaddr, sz = size;
 	     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
-		SetPageReserved(virt_to_page(addr));
+		SetPageReserved(virt_to_page((void *)addr));
 	}
 
 	return dmah;
@@ -103,7 +103,7 @@ void __drm_pci_free(struct drm_device * dev, drm_dma_handle_t * dmah)
 		/* Unreserve */
 		for (addr = (unsigned long)dmah->vaddr, sz = dmah->size;
 		     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
-			ClearPageReserved(virt_to_page(addr));
+			ClearPageReserved(virt_to_page((void *)addr));
 		}
 		dma_free_coherent(&dev->pdev->dev, dmah->size, dmah->vaddr,
 				  dmah->busaddr);
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 8ef6503..93e95d7 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -301,7 +301,7 @@ static int drm_do_vm_dma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 	offset = (unsigned long)vmf->virtual_address - vma->vm_start;	/* vm_[pg]off[set] should be 0 */
 	page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */
-	page = virt_to_page(dma->pagelist[page_nr]);
+	page = virt_to_page((void *)dma->pagelist[page_nr]);
 
 	get_page(page);
 	vmf->page = page;