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authorDongli Zhang <dongli.zhang@oracle.com>2019-01-18 15:10:26 +0800
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2019-02-12 12:53:01 -0500
commit6442ca2abf882d9d838fb844d852ba6acd1db7f4 (patch)
treea92ec5c672dfc59d0d00381f0664ab1c25b9bd4f /kernel/dma
parentd13937116f1e82bf508a6325111b322c30c85eb9 (diff)
downloadlinux-6442ca2abf882d9d838fb844d852ba6acd1db7f4.tar.bz2
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>
Diffstat (limited to 'kernel/dma')
-rw-r--r--kernel/dma/swiotlb.c2
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)