lkml.org 
[lkml]   [2011]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH 3/8] drm: Do not include page offset in argument to virt_to_page()
From
Date
By definition, the page offset will not affect the result.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/gpu/drm/drm_vm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
index 8c03eaf..98c3922 100644
--- a/drivers/gpu/drm/drm_vm.c
+++ b/drivers/gpu/drm/drm_vm.c
@@ -306,7 +306,7 @@ 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] + (offset & (~PAGE_MASK))));
+ page = virt_to_page(dma->pagelist[page_nr]);

get_page(page);
vmf->page = page;
--
1.7.7.3




\
 
 \ /
  Last update: 2011-12-21 02:35    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean