linux-next: build failure after merge of the hmm tree
Stephen Rothwell
sfr at canb.auug.org.au
Mon Aug 23 07:50:27 UTC 2021
Hi all,
After merging the hmm tree, today's linux-next build (x86_64 allmodconfig)
failed like this:
drivers/gpu/drm/i915/gem/i915_gem_ttm.c: In function 'i915_ttm_tt_get_st':
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:396:7: error: implicit declaration of function '__sg_alloc_table_from_pages'; did you mean 'sg_alloc_table_from_pages'? [-Werror=implicit-function-declaration]
396 | sg = __sg_alloc_table_from_pages
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
| sg_alloc_table_from_pages
drivers/gpu/drm/i915/gem/i915_gem_ttm.c:396:5: warning: assignment to 'struct scatterlist *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
396 | sg = __sg_alloc_table_from_pages
| ^
Caused by commit
fcbfe956561b ("lib/scatterlist: Provide a dedicated function to support table append")
interacting with commit
213d50927763 ("drm/i915/ttm: Introduce a TTM i915 gem object backend")
from the drm tree.
I have applied the following merge resolution patch.
From: Stephen Rothwell <sfr at canb.auug.org.au>
Date: Mon, 23 Aug 2021 17:46:27 +1000
Subject: [PATCH] drm/i915/ttm: fix up for "lib/scatterlist: Provide a
dedicated function to support tableappend"
Signed-off-by: Stephen Rothwell <sfr at canb.auug.org.au>
---
drivers/gpu/drm/i915/gem/i915_gem_ttm.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 771eb2963123..d3d95934a047 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -382,7 +382,6 @@ i915_ttm_region(struct ttm_device *bdev, int ttm_mem_type)
static struct sg_table *i915_ttm_tt_get_st(struct ttm_tt *ttm)
{
struct i915_ttm_tt *i915_tt = container_of(ttm, typeof(*i915_tt), ttm);
- struct scatterlist *sg;
struct sg_table *st;
int ret;
@@ -393,13 +392,13 @@ static struct sg_table *i915_ttm_tt_get_st(struct ttm_tt *ttm)
if (!st)
return ERR_PTR(-ENOMEM);
- sg = __sg_alloc_table_from_pages
+ ret = sg_alloc_table_from_pages_segment
(st, ttm->pages, ttm->num_pages, 0,
(unsigned long)ttm->num_pages << PAGE_SHIFT,
- i915_sg_segment_size(), NULL, 0, GFP_KERNEL);
- if (IS_ERR(sg)) {
+ i915_sg_segment_size(), GFP_KERNEL);
+ if (ret) {
kfree(st);
- return ERR_CAST(sg);
+ return ERR_PTR(ret);
}
ret = dma_map_sgtable(i915_tt->dev, st, DMA_BIDIRECTIONAL, 0);
--
2.32.0
--
Cheers,
Stephen Rothwell
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