From: Linus Torvalds <torvalds@linux-foundation.org>
To: Qian Cai <cai@lca.pw>
Cc: Hugh Dickins <hughd@google.com>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
Andrew Morton <akpm@linux-foundation.org>,
Matej Kupljen <matej.kupljen@gmail.com>,
Al Viro <viro@zeniv.linux.org.uk>,
Dan Carpenter <dan.carpenter@oracle.com>,
Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>
Subject: Re: [PATCH] tmpfs: fix uninitialized return value in shmem_link
Date: Mon, 25 Feb 2019 16:07:12 -0800 [thread overview]
Message-ID: <CAHk-=wggjLsi-1BmDHqWAJPzBvTD_-MQNo5qQ9WCuncnyWPROg@mail.gmail.com> (raw)
In-Reply-To: <86649ee4-9794-77a3-502c-f4cd10019c36@lca.pw>
On Mon, Feb 25, 2019 at 4:03 PM Qian Cai <cai@lca.pw> wrote:
> >
> > Of course, that's just gcc. I have no idea what llvm ends up doing.
>
> Clang 7.0:
>
> # clang -O2 -S -Wall /tmp/test.c
> /tmp/test.c:46:6: warning: variable 'ret' is used uninitialized whenever 'if'
> condition is false [-Wsometimes-uninitialized]
Ok, good.
Do we have any clang builds in any of the zero-day robot
infrastructure or something? Should we?
And maybe this was how Dan noticed the problem in the first place? Or
is it just because of his eagle-eyes?
Linus
next prev parent reply other threads:[~2019-02-26 0:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-21 22:21 [PATCH] tmpfs: fix uninitialized return value in shmem_link Darrick J. Wong
2019-02-21 23:05 ` Hugh Dickins
2019-02-23 6:35 ` Hugh Dickins
2019-02-25 19:53 ` Linus Torvalds
2019-02-25 20:34 ` Hugh Dickins
2019-02-25 22:34 ` Linus Torvalds
2019-02-25 23:58 ` Linus Torvalds
2019-02-26 0:03 ` Qian Cai
2019-02-26 0:07 ` Linus Torvalds [this message]
2019-02-26 0:29 ` Darrick J. Wong
2019-02-27 14:09 ` Qian Cai
2019-02-27 20:12 ` Qian Cai
2019-02-28 8:56 ` Nathan Chancellor
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='CAHk-=wggjLsi-1BmDHqWAJPzBvTD_-MQNo5qQ9WCuncnyWPROg@mail.gmail.com' \
--to=torvalds@linux-foundation.org \
--cc=akpm@linux-foundation.org \
--cc=cai@lca.pw \
--cc=dan.carpenter@oracle.com \
--cc=darrick.wong@oracle.com \
--cc=hughd@google.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=matej.kupljen@gmail.com \
--cc=viro@zeniv.linux.org.uk \
/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).