Signed-off-by: Stefano Stabellini <[email protected]>
---
drivers/xen/swiotlb-xen.c | 1 +
lib/swiotlb.c | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 96ad316..790c2eb 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -674,6 +674,7 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct
scatterlist *sgl,
sg->length,
dir);
if (map == SWIOTLB_MAP_ERROR) {
+ pr_warn("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,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index eb45d17..f06da0d 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -502,6 +502,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
not_found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
+ pr_warn("swiotlb buffer is full\n");
return SWIOTLB_MAP_ERROR;
found:
spin_unlock_irqrestore(&io_tlb_lock, flags);
--
1.7.2.5
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