linux-kernel - [PATCH 1/4] driver/scsi/fnic/fnic_trace: Use vzalloc to zero instead of vmalloc+memset

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Date:   Wed, 1 Aug 2018 21:26:13 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <john.garry@...wei.com>, <jejb@...ux.vnet.ibm.com>,
        <martin.petersen@...cle.com>, <aacraid@...rosemi.com>
CC:     <andy.shevchenko@...il.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/4] driver/scsi/fnic/fnic_trace: Use vzalloc to zero instead of vmalloc+memset

The vzalloc is better than vmalloc+memset, so replace them to make
the code concise.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/scsi/fnic/fnic_trace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index 8271785..1c42556 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -468,14 +468,13 @@ int fnic_trace_buf_init(void)
 	fnic_max_trace_entries = (trace_max_pages * PAGE_SIZE)/
 					  FNIC_ENTRY_SIZE_BYTES;
 
-	fnic_trace_buf_p = (unsigned long)vmalloc((trace_max_pages * PAGE_SIZE));
+	fnic_trace_buf_p = (unsigned long)vzalloc((trace_max_pages * PAGE_SIZE));
 	if (!fnic_trace_buf_p) {
 		printk(KERN_ERR PFX "Failed to allocate memory "
 				  "for fnic_trace_buf_p\n");
 		err = -ENOMEM;
 		goto err_fnic_trace_buf_init;
 	}
-	memset((void *)fnic_trace_buf_p, 0, (trace_max_pages * PAGE_SIZE));
 
 	fnic_trace_entries.page_offset =
 		vmalloc(array_size(fnic_max_trace_entries,
-- 
1.7.12.4