From: Jordan Crouse Date: Mon, 15 Oct 2018 21:31:54 +0000 (-0600) Subject: drm/msm/gpu: Don't map command buffers with nr_relocs equal to 0 X-Git-Tag: v5.15~7475^2~3^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d52900437e95e2799953af21971a54fe5f8e33ff;p=platform%2Fkernel%2Flinux-starfive.git drm/msm/gpu: Don't map command buffers with nr_relocs equal to 0 If a command buffer doesn't have any relocs assigned to it there then is no need to map it in the kernel address space. Signed-off-by: Jordan Crouse Signed-off-by: Rob Clark Signed-off-by: Sean Paul --- diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 7a7923e..66673ea 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -317,6 +317,9 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob uint32_t *ptr; int ret = 0; + if (!nr_relocs) + return 0; + if (offset % 4) { DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset); return -EINVAL;