From d81f3431e61771028acb69a23601ef5379e39f2a Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 8 Jun 2018 14:56:04 +0200
Subject: drm/tegra: gem: Use dma_get_sgtable()
Git-commit: d81f3431e61771028acb69a23601ef5379e39f2a
Patch-mainline: v5.5-rc1
References: bsc#1152472
Rather than manually creating an SG table in an incorrect way, let the
standard dma_get_sgtable() function do it.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/tegra/gem.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 7412e23500d1..3345cce14662 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -520,11 +520,9 @@ tegra_gem_prime_map_dma_buf(struct dma_buf_attachment *attach,
if (dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir) == 0)
goto free;
} else {
- if (sg_alloc_table(sgt, 1, GFP_KERNEL))
+ if (dma_get_sgtable(attach->dev, sgt, bo->vaddr, bo->iova,
+ gem->size) < 0)
goto free;
-
- sg_dma_address(sgt->sgl) = bo->iova;
- sg_dma_len(sgt->sgl) = gem->size;
}
return sgt;
--
2.28.0