From: Julia Lawall <Julia.Lawall@inria.fr>
Date: Sun, 20 Sep 2020 13:26:17 +0200
Subject: RDMA/efa: Drop double zeroing for sg_init_table()
Patch-mainline: v5.10-rc1
Git-commit: 3de3c4785b1085b48fc7027d05da9e1fc9cc2396
References: bsc#1176248

sg_init_table() zeroes its first argument, so the allocation of that
argument doesn't have to.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,n,flags;
@@

x =
- kcalloc
+ kmalloc_array
  (n,sizeof(*x),flags)
...
sg_init_table(x,n)
// </smpl>

Link: https://lore.kernel.org/r/1600601186-7420-6-git-send-email-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/efa/efa_verbs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -1026,7 +1026,7 @@ static struct scatterlist *efa_vmalloc_b
 	struct page *pg;
 	int i;
 
-	sglist = kcalloc(page_cnt, sizeof(*sglist), GFP_KERNEL);
+	sglist = kmalloc_array(page_cnt, sizeof(*sglist), GFP_KERNEL);
 	if (!sglist)
 		return NULL;
 	sg_init_table(sglist, page_cnt);