From: Fengguang Wu <fengguang.wu@intel.com>
To: kernel-janitors@vger.kernel.org
Subject: [glommer-memcg:slab-common/kmalloc 27/30] fs/proc/stat.c:191:3: warning: large integer implicitly tr
Date: Fri, 28 Sep 2012 11:17:24 +0000 [thread overview]
Message-ID: <20120928111724.GC31784@localhost> (raw)
Hi Christoph,
FYI, there are new compile warnings show up in
tree: git://git.kernel.org/pub/scm/linux/kernel/git/glommer/memcg.git slab-common/kmalloc
head: f957c1ead131972db578b945e25982f4607da6ba
commit: 1265e4cd1545c612bd0397d3d83fff5301a4beb4 [27/30] CK1 [11/13] Common constants for kmalloc boundaries
config: ia64-defconfig
All warnings:
fs/proc/stat.c: In function 'stat_open':
fs/proc/stat.c:191:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
vim +191 fs/proc/stat.c
df8106db (Alexey Dobriyan 2008-10-05 179) static int stat_open(struct inode *inode, struct file *file)
df8106db (Alexey Dobriyan 2008-10-05 180) {
59a32e2c (Eric Dumazet 2012-03-23 181) unsigned size = 1024 + 128 * num_possible_cpus();
df8106db (Alexey Dobriyan 2008-10-05 182) char *buf;
df8106db (Alexey Dobriyan 2008-10-05 183) struct seq_file *m;
df8106db (Alexey Dobriyan 2008-10-05 184) int res;
df8106db (Alexey Dobriyan 2008-10-05 185)
59a32e2c (Eric Dumazet 2012-03-23 186) /* minimum size to display an interrupt count : 2 bytes */
59a32e2c (Eric Dumazet 2012-03-23 187) size += 2 * nr_irqs;
59a32e2c (Eric Dumazet 2012-03-23 188)
a4dbf0ec (Yuanhan Liu 2011-05-26 189) /* don't ask for more than the kmalloc() max size */
a4dbf0ec (Yuanhan Liu 2011-05-26 190) if (size > KMALLOC_MAX_SIZE)
a4dbf0ec (Yuanhan Liu 2011-05-26 @191) size = KMALLOC_MAX_SIZE;
df8106db (Alexey Dobriyan 2008-10-05 192) buf = kmalloc(size, GFP_KERNEL);
df8106db (Alexey Dobriyan 2008-10-05 193) if (!buf)
df8106db (Alexey Dobriyan 2008-10-05 194) return -ENOMEM;
df8106db (Alexey Dobriyan 2008-10-05 195)
df8106db (Alexey Dobriyan 2008-10-05 196) res = single_open(file, show_stat, NULL);
df8106db (Alexey Dobriyan 2008-10-05 197) if (!res) {
df8106db (Alexey Dobriyan 2008-10-05 198) m = file->private_data;
df8106db (Alexey Dobriyan 2008-10-05 199) m->buf = buf;
---
0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation
next reply other threads:[~2012-09-28 11:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 11:17 Fengguang Wu [this message]
2012-09-28 17:35 ` [glommer-memcg:slab-common/kmalloc 27/30] fs/proc/stat.c:191:3: warning: large integer implicitl Christoph Lameter
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=20120928111724.GC31784@localhost \
--to=fengguang.wu@intel.com \
--cc=kernel-janitors@vger.kernel.org \
/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