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authorJan Kara <jack@suse.cz>2016-12-14 15:07:01 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-14 16:04:09 -0800
commit1a29d85eb0f19b7d8271923d8917d7b4f5540b3e (patch)
tree76bf90e637fb4b0c95a7a9eb81bc9aec71329a4e /drivers/char
parentmm: join struct fault_env and vm_fault (diff)
downloadwireguard-linux-1a29d85eb0f19b7d8271923d8917d7b4f5540b3e.tar.xz
wireguard-linux-1a29d85eb0f19b7d8271923d8917d7b4f5540b3e.zip
mm: use vmf->address instead of of vmf->virtual_address
Every single user of vmf->virtual_address typed that entry to unsigned long before doing anything with it so the type of virtual_address does not really provide us any additional safety. Just use masked vmf->address which already has the appropriate type. Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/agp/alpha-agp.c3
-rw-r--r--drivers/char/mspec.c2
2 files changed, 2 insertions, 3 deletions
diff --git a/drivers/char/agp/alpha-agp.c b/drivers/char/agp/alpha-agp.c
index 199b8e99f7d7..737187865269 100644
--- a/drivers/char/agp/alpha-agp.c
+++ b/drivers/char/agp/alpha-agp.c
@@ -19,8 +19,7 @@ static int alpha_core_agp_vm_fault(struct vm_area_struct *vma,
unsigned long pa;
struct page *page;
- dma_addr = (unsigned long)vmf->virtual_address - vma->vm_start
- + agp->aperture.bus_base;
+ dma_addr = vmf->address - vma->vm_start + agp->aperture.bus_base;
pa = agp->ops->translate(agp, dma_addr);
if (pa == (unsigned long)-EINVAL)
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
index f3f92d5fcda0..a697ca0cab1e 100644
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -227,7 +227,7 @@ mspec_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
* be because another thread has installed the pte first, so it
* is no problem.
*/
- vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
+ vm_insert_pfn(vma, vmf->address, pfn);
return VM_FAULT_NOPAGE;
}