diff mbox series

[RESEND,v3] scsi: fnic: Use vcalloc() instead of vmalloc() and memset(0)

Message ID 20241107104300.1252-1-thorsten.blum@linux.dev
State New
Headers show
Series [RESEND,v3] scsi: fnic: Use vcalloc() instead of vmalloc() and memset(0) | expand

Commit Message

Thorsten Blum Nov. 7, 2024, 10:42 a.m. UTC 
Use vcalloc() instead of vmalloc() followed by memset(0) to simplify the
functions fnic_trace_buf_init() and fnic_fc_trace_init().

Compile-tested only.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
Changes in v2:
- Remove unsigned long cast as suggested by Johannes Thumshirn
- Link to v1: https://lore.kernel.org/r/20241007115840.2239-6-thorsten.blum@linux.dev/

Changes in v3:
- Keep the unsigned long cast removed in v2
- Use vcalloc() instead of vzalloc() as suggested by Johannes Thumshirn
- Compile-tested again
- Link to v2: https://lore.kernel.org/r/20241008095152.1831-2-thorsten.blum@linux.dev/
---
 drivers/scsi/fnic/fnic_trace.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

Comments

Martin K. Petersen Dec. 4, 2024, 6:06 p.m. UTC | #1 
Thorsten,

> Use vcalloc() instead of vmalloc() followed by memset(0) to simplify
> the functions fnic_trace_buf_init() and fnic_fc_trace_init().

Timed out waiting for Cisco. Applied to 6.14/scsi-staging, thanks!
Martin K. Petersen Dec. 10, 2024, 2:35 a.m. UTC | #2 
On Thu, 07 Nov 2024 11:42:59 +0100, Thorsten Blum wrote:

> Use vcalloc() instead of vmalloc() followed by memset(0) to simplify the
> functions fnic_trace_buf_init() and fnic_fc_trace_init().
> 
> Compile-tested only.
> 
> 

Applied to 6.14/scsi-queue, thanks!

[1/1] scsi: fnic: Use vcalloc() instead of vmalloc() and memset(0)
      https://git.kernel.org/mkp/scsi/c/5f8822c4a420
diff mbox series

Patch

diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index aaa4ea02fb7c..e5e0c0492f23 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -485,8 +485,7 @@  int fnic_trace_buf_init(void)
 	}
 
 	fnic_trace_entries.page_offset =
-		vmalloc(array_size(fnic_max_trace_entries,
-				   sizeof(unsigned long)));
+		vcalloc(fnic_max_trace_entries, sizeof(unsigned long));
 	if (!fnic_trace_entries.page_offset) {
 		printk(KERN_ERR PFX "Failed to allocate memory for"
 				  " page_offset\n");
@@ -497,8 +496,6 @@  int fnic_trace_buf_init(void)
 		err = -ENOMEM;
 		goto err_fnic_trace_buf_init;
 	}
-	memset((void *)fnic_trace_entries.page_offset, 0,
-		  (fnic_max_trace_entries * sizeof(unsigned long)));
 	fnic_trace_entries.wr_idx = fnic_trace_entries.rd_idx = 0;
 	fnic_buf_head = fnic_trace_buf_p;
 
@@ -559,8 +556,7 @@  int fnic_fc_trace_init(void)
 	fc_trace_max_entries = (fnic_fc_trace_max_pages * PAGE_SIZE)/
 				FC_TRC_SIZE_BYTES;
 	fnic_fc_ctlr_trace_buf_p =
-		(unsigned long)vmalloc(array_size(PAGE_SIZE,
-						  fnic_fc_trace_max_pages));
+		(unsigned long)vcalloc(fnic_fc_trace_max_pages, PAGE_SIZE);
 	if (!fnic_fc_ctlr_trace_buf_p) {
 		pr_err("fnic: Failed to allocate memory for "
 		       "FC Control Trace Buf\n");
@@ -568,13 +564,9 @@  int fnic_fc_trace_init(void)
 		goto err_fnic_fc_ctlr_trace_buf_init;
 	}
 
-	memset((void *)fnic_fc_ctlr_trace_buf_p, 0,
-			fnic_fc_trace_max_pages * PAGE_SIZE);
-
 	/* Allocate memory for page offset */
 	fc_trace_entries.page_offset =
-		vmalloc(array_size(fc_trace_max_entries,
-				   sizeof(unsigned long)));
+		vcalloc(fc_trace_max_entries, sizeof(unsigned long));
 	if (!fc_trace_entries.page_offset) {
 		pr_err("fnic:Failed to allocate memory for page_offset\n");
 		if (fnic_fc_ctlr_trace_buf_p) {
@@ -585,8 +577,6 @@  int fnic_fc_trace_init(void)
 		err = -ENOMEM;
 		goto err_fnic_fc_ctlr_trace_buf_init;
 	}
-	memset((void *)fc_trace_entries.page_offset, 0,
-	       (fc_trace_max_entries * sizeof(unsigned long)));
 
 	fc_trace_entries.rd_idx = fc_trace_entries.wr_idx = 0;
 	fc_trace_buf_head = fnic_fc_ctlr_trace_buf_p;