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swiotlb: print a warning when the swiotlb is full

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Signed-off-by: Stefano Stabellini <[email protected]>

Changes in v7:
- use dev_warn instead of pr_warn.
This commit is contained in:
Stefano Stabellini 2013-10-25 10:33:26 +00:00
commit 783d028104
2 changed files with 2 additions and 0 deletions
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1
drivers/xen/swiotlb-xen.c
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@ -542,6 +542,7 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
sg->length,
dir);
if (map == SWIOTLB_MAP_ERROR) {
dev_warn(hwdev, "swiotlb buffer is full\n");
/* Don't panic here, we expect map_sg users
to do proper error handling. */
xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,