* [patch] drm/nouveau/mmu: shift wrapping bug in gf100_vm_map()
@ 2015-02-09 13:58 Dan Carpenter
0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2015-02-09 13:58 UTC (permalink / raw)
To: David Airlie; +Cc: kernel-janitors, Ben Skeggs, dri-devel
Since "1" is an int, then it means we can't use the high bits of this
u64.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
index 294cda3..b10c90a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/gf100.c
@@ -106,7 +106,7 @@ static void
gf100_vm_map(struct nvkm_vma *vma, struct nvkm_gpuobj *pgt,
struct nvkm_mem *mem, u32 pte, u32 cnt, u64 phys, u64 delta)
{
- u64 next = 1 << (vma->node->type - 8);
+ u64 next = 1ULL << (vma->node->type - 8);
phys = gf100_vm_addr(vma, phys, mem->memtype, 0);
pte <<= 3;
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2015-02-09 13:58 [patch] drm/nouveau/mmu: shift wrapping bug in gf100_vm_map() Dan Carpenter
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