From: Wang Hai <wanghai38@huawei.com>
To: <aacraid@microsemi.com>, <jejb@linux.ibm.com>,
<martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH -next] scsi: dpt_i2o: remove some not needed memset
Date: Sat, 18 Jul 2020 20:32:24 +0800 [thread overview]
Message-ID: <20200718123224.1202-1-wanghai38@huawei.com> (raw)
Fixes coccicheck warning:
./drivers/scsi/dpt_i2o.c:3070:11-29: WARNING:
dma_alloc_coherent use in sys_tbl already zeroes out memory, so memset is not needed
./drivers/scsi/dpt_i2o.c:2780:10-28: WARNING:
dma_alloc_coherent use in status already zeroes out memory, so memset is not needed
./drivers/scsi/dpt_i2o.c:2834:20-38: WARNING:
dma_alloc_coherent use in pHba -> reply_pool already zeroes out memory, so memset is not needed
./drivers/scsi/dpt_i2o.c:1328:10-28: WARNING:
dma_alloc_coherent use in status already zeroes out memory, so memset is not needed
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
---
drivers/scsi/dpt_i2o.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 0497ef6a9453..f654ad8a3d69 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -1331,7 +1331,6 @@ static s32 adpt_i2o_reset_hba(adpt_hba* pHba)
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;
@@ -2784,7 +2783,6 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
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]);
@@ -2838,7 +2836,6 @@ static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
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),
@@ -3073,7 +3070,6 @@ static int adpt_i2o_build_sys_table(void)
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;
--
2.17.1
next reply other threads:[~2020-07-18 12:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-18 12:32 Wang Hai [this message]
2020-07-25 2:50 ` [PATCH -next] scsi: dpt_i2o: remove some not needed memset Martin K. Petersen
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