Messages in this thread Patch in this message | | | From | Dongli Zhang <> | Subject | [PATCH v3 1/3] swiotlb: fix comment on swiotlb_bounce() | Date | Fri, 18 Jan 2019 15:10:26 +0800 |
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Fix the comment as swiotlb_bounce() is used to copy from original dma location to swiotlb buffer during swiotlb_tbl_map_single(), while to copy from swiotlb buffer to original dma location during swiotlb_tbl_unmap_single().
Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com> --- kernel/dma/swiotlb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 1fb6fd6..1d8b377 100644 --- a/kernel/dma/swiotlb.c +++ b/kernel/dma/swiotlb.c @@ -385,7 +385,7 @@ void __init swiotlb_exit(void) } /* - * Bounce: copy the swiotlb buffer back to the original dma location + * Bounce: copy the swiotlb buffer from or back to the original dma location */ static void swiotlb_bounce(phys_addr_t orig_addr, phys_addr_t tlb_addr, size_t size, enum dma_data_direction dir) -- 2.7.4
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