Re: [PATCH 1/6] drm/i915/ttm: fix sparse warning

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Am 30.01.23 um 11:12 schrieb Matthew Auld:
Sparse complains with:

drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1066:21: sparse:
	expected restricted vm_fault_t [assigned] [usertype] ret
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1066:21: sparse: got int

Fixes: 516198d317d8 ("drm/i915: audit bo->resource usage v3")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Cc: Christian König <ckoenig.leichtzumerken@xxxxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx> for the i915 patches.

I'm on vacation this week. going to push this to drm-misc-next when I'm back unless someone is faster.

Thanks,
Christian.

---
  drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 7420276827a5..4758f21c91e1 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -1067,11 +1067,12 @@ static vm_fault_t vm_fault_ttm(struct vm_fault *vmf)
  			.interruptible = true,
  			.no_wait_gpu = true, /* should be idle already */
  		};
+		int err;
GEM_BUG_ON(!bo->ttm || !(bo->ttm->page_flags & TTM_TT_FLAG_SWAPPED)); - ret = ttm_bo_validate(bo, i915_ttm_sys_placement(), &ctx);
-		if (ret) {
+		err = ttm_bo_validate(bo, i915_ttm_sys_placement(), &ctx);
+		if (err) {
  			dma_resv_unlock(bo->base.resv);
  			return VM_FAULT_SIGBUS;
  		}




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