diff options
| author | Dongli Zhang <dongli.zhang@oracle.com> | 2019-01-18 15:10:26 +0800 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2019-02-12 12:53:01 -0500 |
| commit | 6442ca2abf882d9d838fb844d852ba6acd1db7f4 (patch) | |
| tree | a92ec5c672dfc59d0d00381f0664ab1c25b9bd4f | |
| parent | d13937116f1e82bf508a6325111b322c30c85eb9 (diff) | |
swiotlb: fix comment on swiotlb_bounce()
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>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | kernel/dma/swiotlb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c index 1fb6fd68b9c7..1d8b37747bf0 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) |