[106/192] drm/i915/selftests: use vma_lookup() in __igt_mmap()

Commit Message

Andrew Morton June 29, 2021, 2:38 a.m. UTC

From: Liam Howlett <[e-mail]>
Subject: drm/i915/selftests: use vma_lookup() in __igt_mmap()

vma_lookup() will look up the vma at a specific address.  find_vma() will
start the search for a specific address and continue upwards.  This fixes
an issue with the selftest as the returned vma may not be the newly
created vma, but simply the vma at a higher address.

Link: https://lkml.kernel.org/r/[e-mail]
Fixes: 6fedafacae1b (drm/i915/selftests: Wrap vm_mmap() around GEM
objects
Signed-off-by: Liam R. Howlett <[e-mail]>
Reviewed-by: Laurent Dufour <[e-mail]>
Acked-by: David Hildenbrand <[e-mail]>
Acked-by: Davidlohr Bueso <[e-mail]>
Cc: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
---

 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c~drm-i915-selftests-use-vma_lookup-in-__igt_mmap
+++ a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -871,7 +871,7 @@  static int __igt_mmap(struct drm_i915_pr
 
 	pr_debug("igt_mmap(%s, %d) @ %lx\n", obj->mm.region->name, type, addr);
 
-	area = find_vma(current->mm, addr);
+	area = vma_lookup(current->mm, addr);
 	if (!area) {
 		pr_err("%s: Did not create a vm_area_struct for the mmap\n",
 		       obj->mm.region->name);