From 4ac64fac2e632839cb0073fbb061ad5b411c77c4 Mon Sep 17 00:00:00 2001 From: Fuqian Huang Date: Fri, 28 Jun 2019 01:34:18 +0800 Subject: [PATCH] ata: sata_nv: Remove call to memset after dmam_alloc_coherent In commit 626829d66013 ("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 Signed-off-by: Jens Axboe --- drivers/ata/sata_nv.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 54bfab15c74a9..b44b4b64354c2 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -1136,7 +1136,6 @@ static int nv_adma_port_start(struct ata_port *ap) &mem_dma, GFP_KERNEL); if (!mem) return -ENOMEM; - memset(mem, 0, NV_ADMA_PORT_PRIV_DMA_SZ); /* * First item in chunk of DMA memory: @@ -1946,7 +1945,6 @@ static int nv_swncq_port_start(struct ata_port *ap) &pp->prd_dma, GFP_KERNEL); if (!pp->prd) return -ENOMEM; - memset(pp->prd, 0, ATA_PRD_TBL_SZ * ATA_MAX_QUEUE); ap->private_data = pp; pp->sactive_block = ap->ioaddr.scr_addr + 4 * SCR_ACTIVE; -- 2.39.5