leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

RDMA/efa: Drop double zeroing for sg_init_table()

Browse Source 
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>
This commit is contained in:
Julia Lawall 2020-09-20 13:26:17 +02:00 committed by Jason Gunthorpe
parent f2334964e9
commit 3de3c4785b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/infiniband/hw/efa/efa_verbs.c
View File

@ -1165,7 +1165,7 @@ static struct scatterlist *efa_vmalloc_buf_to_sg(u64 *buf, int page_cnt)
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);