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authorFuqian Huang <huangfq.daxian@gmail.com>2019-06-28 01:34:01 +0800
committerJens Axboe <axboe@kernel.dk>2019-06-29 09:42:23 -0600
commit602e40a78567ffd7e5eaf235a116fd808cf85b75 (patch)
treebba5dda5d69845ef9413f7153c1a818352ebaec8 /drivers/ata/libahci.c
parentfec36aae0de14e31c7cf3e8be172d10a966de2ea (diff)
ata: libahci: Remove call to memset after dmam_alloc_coherent
In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dmam_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ata/libahci.c')
-rw-r--r--drivers/ata/libahci.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 0984c4b76d7e..e4c45d3cca79 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2365,7 +2365,6 @@ static int ahci_port_start(struct ata_port *ap)
mem = dmam_alloc_coherent(dev, dma_sz, &mem_dma, GFP_KERNEL);
if (!mem)
return -ENOMEM;
- memset(mem, 0, dma_sz);
/*
* First item in chunk of DMA memory: 32-slot command table,