Otherwise a pde_shift big enough to overflow a u32 will be truncated before
assignment
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 66a6da2..368d111 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -418,7 +418,7 @@ static inline uint32_t i915_pte_index(uint64_t address, uint32_t pde_shift)
static inline uint32_t i915_pte_count(uint64_t addr, size_t length,
uint32_t pde_shift)
{
- const uint64_t mask = ~((1 << pde_shift) - 1);
+ const uint64_t mask = ~((1ULL << pde_shift) - 1);
uint64_t end;
WARN_ON(length == 0);
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