From: Julia Lawall <Julia.Lawall@inria.fr>
To: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: kernel-janitors@vger.kernel.org,
Ashutosh Dixit <ashutosh.dixit@intel.com>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH 13/14] misc: mic: drop double zeroing
Date: Sun, 20 Sep 2020 11:26:25 +0000 [thread overview]
Message-ID: <1600601186-7420-14-git-send-email-Julia.Lawall@inria.fr> (raw)
In-Reply-To: <1600601186-7420-1-git-send-email-Julia.Lawall@inria.fr>
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(struct scatterlist),flags)
...
sg_init_table(x,n)
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
---
drivers/misc/mic/scif/scif_nodeqp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -u -p a/drivers/misc/mic/scif/scif_nodeqp.c b/drivers/misc/mic/scif/scif_nodeqp.c
--- a/drivers/misc/mic/scif/scif_nodeqp.c
+++ b/drivers/misc/mic/scif/scif_nodeqp.c
@@ -363,7 +363,7 @@ scif_p2p_setsg(phys_addr_t pa, int page_
struct page *page;
int i;
- sg = kcalloc(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
+ sg = kmalloc_array(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
if (!sg)
return NULL;
sg_init_table(sg, page_cnt);
next prev parent reply other threads:[~2020-09-20 11:26 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-20 11:26 [PATCH 00/14] drop double zeroing Julia Lawall
2020-09-20 11:26 ` [PATCH 01/14] pch_uart: " Julia Lawall
2020-09-20 12:14 ` Greg Kroah-Hartman
2020-09-20 12:47 ` Julia Lawall
2020-09-27 12:11 ` Greg Kroah-Hartman
2020-09-20 11:26 ` [PATCH 02/14] target/rd: " Julia Lawall
2020-10-08 2:31 ` Martin K. Petersen
2020-09-20 11:26 ` [PATCH 03/14] dpaa2-eth: " Julia Lawall
2020-09-21 2:09 ` David Miller
2020-09-20 11:26 ` [PATCH 04/14] dmaengine: sh: " Julia Lawall
2020-10-05 4:48 ` Vinod Koul
2020-09-20 11:26 ` [PATCH 05/14] RDMA/efa: " Julia Lawall
2020-09-21 7:13 ` Gal Pressman
2020-09-22 23:27 ` Jason Gunthorpe
2020-09-20 11:26 ` [PATCH 06/14] block: " Julia Lawall
2020-09-23 15:18 ` Jens Axboe
2020-09-20 11:26 ` [PATCH 07/14] RDS: " Julia Lawall
2020-09-21 2:09 ` David Miller
2020-09-20 11:26 ` [PATCH 08/14] xprtrdma: " Julia Lawall
2020-09-20 15:37 ` Chuck Lever
2020-09-20 11:26 ` [PATCH 09/14] dmaengine: rcar-dmac: " Julia Lawall
2020-10-05 4:48 ` Vinod Koul
2020-09-20 11:26 ` [PATCH 10/14] iwlwifi: dbg_ini: " Julia Lawall
2020-09-20 11:26 ` [PATCH 11/14] spi/topcliff-pch: " Julia Lawall
2020-09-20 11:26 ` [PATCH 12/14] [media] saa7146: " Julia Lawall
2020-09-20 11:26 ` Julia Lawall [this message]
2020-09-20 11:26 ` [PATCH 14/14] PCI/P2PDMA: " Julia Lawall
2020-09-28 22:24 ` Bjorn Helgaas
2020-09-21 16:58 ` [PATCH 00/14] " Mark Brown
2020-09-23 15:10 ` Rolf Reintjes
2020-09-23 15:16 ` Mark Brown
2020-10-13 22:42 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1600601186-7420-14-git-send-email-Julia.Lawall@inria.fr \
--to=julia.lawall@inria.fr \
--cc=arnd@arndb.de \
--cc=ashutosh.dixit@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sudeep.dutt@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).