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-rw-r--r--kernel/dma/swiotlb.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index 1c0a49e6685a..ee57fd9949dc 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -384,6 +384,9 @@ int swiotlb_init_late(size_t size, gfp_t gfp_mask,
bool retried = false;
int rc = 0;
+ if (io_tlb_default_mem.nslabs)
+ return 0;
+
if (swiotlb_force_disable)
return 0;