linux-kernel - RE: [PATCH -next 15/26] bfa: Use dma_zalloc

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Message-ID: <20B1A3CBD98F3845B3F5F56D8597EF59F98DD4@avmb2.qlogic.org>
Date:	Mon, 16 Jun 2014 06:31:43 +0000
From:	Anil Gurumurthy <Anil.Gurumurthy@...gic.com>
To:	Joe Perches <joe@...ches.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
CC:	Sudarsana Kalluru <Sudarsana.Kalluru@...gic.com>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: RE: [PATCH -next 15/26] bfa: Use dma_zalloc_coherent

Thanks for the patch.
Acked-by: Anil Gurumurthy <anil.gurumurthy@...gic.com>

-----Original Message-----
From: Joe Perches [mailto:joe@...ches.com]
Sent: 16 June 2014 02:08
To: linux-kernel
Cc: Anil Gurumurthy; Sudarsana Kalluru; James E.J. Bottomley; linux-scsi
Subject: [PATCH -next 15/26] bfa: Use dma_zalloc_coherent

Use the zeroing function instead of dma_alloc_coherent & memset(,0,)

Signed-off-by: Joe Perches <joe@...ches.com>
---
 drivers/scsi/bfa/bfad_bsg.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c index 8994fb8..65f3e74 100644
--- a/drivers/scsi/bfa/bfad_bsg.c
+++ b/drivers/scsi/bfa/bfad_bsg.c
@@ -3270,13 +3270,13 @@ bfad_fcxp_map_sg(struct bfad_s *bfad, void *payload_kbuf,
        /* Allocate dma coherent memory */
        buf_info = buf_base;
        buf_info->size = payload_len;
-       buf_info->virt = dma_alloc_coherent(&bfad->pcidev->dev, buf_info->size,
-                                       &buf_info->phys, GFP_KERNEL);
+       buf_info->virt = dma_zalloc_coherent(&bfad->pcidev->dev,
+                                            buf_info->size, &buf_info->phys,
+                                            GFP_KERNEL);
        if (!buf_info->virt)
                goto out_free_mem;

        /* copy the linear bsg buffer to buf_info */
-       memset(buf_info->virt, 0, buf_info->size);
        memcpy(buf_info->virt, payload_kbuf, buf_info->size);

        /*
--
1.8.1.2.459.gbcd45b4.dirty


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