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Mon, 11 Mar 2019 08:51:19 -0700 (PDT) Message-ID: <5c8683f7.1c69fb81.e37f9.75a0@mx.google.com> X-Google-Original-Message-ID: <20190311155111.GA9038@sabyasachi.linux@gmail.com> Date: Mon, 11 Mar 2019 21:21:11 +0530 From: Sabyasachi Gupta To: akpm@linux-foundation.org Cc: aacraid@microsemi.com, jejb@linux.vnet.ibm.com, martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, jrdr.linux@gmail.com Subject: [PATCH] scsi/dpt_i2o.c: Use dma_zalloc_coherent MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Replaced dma_alloc_coherent + memset with dma_zalloc_coherent Signed-off-by: Sabyasachi Gupta --- drivers/scsi/dpt_i2o.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 37de8fb..056383a 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -1370,13 +1370,12 @@ static s32 adpt_i2o_reset_hba(adpt_hba* pHba) schedule_timeout_uninterruptible(1); } while (m == EMPTY_QUEUE); - status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); + status = dma_zalloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); if(status == NULL) { adpt_send_nop(pHba, m); printk(KERN_ERR"IOP reset failed - no free memory.\n"); return -ENOMEM; } - memset(status,0,4); msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0; msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID; @@ -2836,14 +2835,13 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba) msg=(u32 __iomem *)(pHba->msg_addr_virt+m); - status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); + status = dma_zalloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL); if (!status) { adpt_send_nop(pHba, m); printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n", pHba->name); return -ENOMEM; } - memset(status, 0, 4); writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]); writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]); @@ -2890,14 +2888,13 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba) pHba->reply_pool, pHba->reply_pool_pa); } - pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev, + pHba->reply_pool = dma_zalloc_coherent(&pHba->pDev->dev, pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4, &pHba->reply_pool_pa, GFP_KERNEL); if (!pHba->reply_pool) { printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name); return -ENOMEM; } - memset(pHba->reply_pool, 0 , pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4); for(i = 0; i < pHba->reply_fifo_size; i++) { writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4), @@ -3126,13 +3123,12 @@ static int adpt_i2o_build_sys_table(void) sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs (hba_count) * sizeof(struct i2o_sys_tbl_entry); - sys_tbl = dma_alloc_coherent(&pHba->pDev->dev, + sys_tbl = dma_zalloc_coherent(&pHba->pDev->dev, sys_tbl_len, &sys_tbl_pa, GFP_KERNEL); if (!sys_tbl) { printk(KERN_WARNING "SysTab Set failed. Out of memory.\n"); return -ENOMEM; } - memset(sys_tbl, 0, sys_tbl_len); sys_tbl->num_entries = hba_count; sys_tbl->version = I2OVERSION; -- 2.7.4