Double check that we allocated the right amount of scatterlist elements for our obj->size.
Signed-off-by: Chris Wilson <[email protected]> Cc: Matthew Auld <[email protected]> Reviewed-by: Matthew Auld <[email protected]> --- drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c index e23753181720..2b7a108f7745 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c @@ -62,12 +62,14 @@ fake_get_pages(struct drm_i915_gem_object *obj) for (sg = pages->sgl; sg; sg = sg_next(sg)) { unsigned long len = min_t(typeof(rem), rem, BIT(31)); + GEM_BUG_ON(!len); sg_set_page(sg, pfn_to_page(PFN_BIAS), len, 0); sg_dma_address(sg) = page_to_phys(sg_page(sg)); sg_dma_len(sg) = len; rem -= len; } + GEM_BUG_ON(rem); obj->mm.madv = I915_MADV_DONTNEED; return pages; -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
