swiotlb: print a warning when the swiotlb is full
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Changes in v7: - use dev_warn instead of pr_warn.
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6cf0546362
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@ -542,6 +542,7 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
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sg->length,
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sg->length,
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dir);
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dir);
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if (map == SWIOTLB_MAP_ERROR) {
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if (map == SWIOTLB_MAP_ERROR) {
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dev_warn(hwdev, "swiotlb buffer is full\n");
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/* Don't panic here, we expect map_sg users
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/* Don't panic here, we expect map_sg users
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to do proper error handling. */
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to do proper error handling. */
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xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
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xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
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@ -502,6 +502,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
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not_found:
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not_found:
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spin_unlock_irqrestore(&io_tlb_lock, flags);
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spin_unlock_irqrestore(&io_tlb_lock, flags);
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dev_warn(hwdev, "swiotlb buffer is full\n");
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return SWIOTLB_MAP_ERROR;
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return SWIOTLB_MAP_ERROR;
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found:
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found:
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spin_unlock_irqrestore(&io_tlb_lock, flags);
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spin_unlock_irqrestore(&io_tlb_lock, flags);
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