From: Jan Kara <jack@suse.cz>
To: zhengbin <zhengbin13@huawei.com>
Cc: amir73il@gmail.com, jack@suse.cz, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] fanotify: remove always false comparison in copy_fid_to_user
Date: Tue, 3 Sep 2019 13:40:16 +0200 [thread overview]
Message-ID: <20190903114016.GA4401@quack2.suse.cz> (raw)
In-Reply-To: <1567475654-6133-1-git-send-email-zhengbin13@huawei.com>
On Tue 03-09-19 09:54:14, zhengbin wrote:
> Fixes gcc warning:
>
> fs/notify/fanotify/fanotify_user.c:252:19: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
>
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: zhengbin <zhengbin13@huawei.com>
Thanks for the patch! I've added it to my tree.
Honza
> ---
> fs/notify/fanotify/fanotify_user.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
> index 8508ab5..e15547d 100644
> --- a/fs/notify/fanotify/fanotify_user.c
> +++ b/fs/notify/fanotify/fanotify_user.c
> @@ -249,7 +249,7 @@ static int copy_fid_to_user(struct fanotify_event *event, char __user *buf)
> /* Pad with 0's */
> buf += fh_len;
> len -= fh_len;
> - WARN_ON_ONCE(len < 0 || len >= FANOTIFY_EVENT_ALIGN);
> + WARN_ON_ONCE(len >= FANOTIFY_EVENT_ALIGN);
> if (len > 0 && clear_user(buf, len))
> return -EFAULT;
>
> --
> 2.7.4
>
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
prev parent reply other threads:[~2019-09-03 11:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-03 1:54 [PATCH] fanotify: remove always false comparison in copy_fid_to_user zhengbin
2019-09-03 11:28 ` Matthew Wilcox
2019-09-03 20:10 ` Jan Kara
2019-09-03 11:40 ` Jan Kara [this message]
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=20190903114016.GA4401@quack2.suse.cz \
--to=jack@suse.cz \
--cc=amir73il@gmail.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=zhengbin13@huawei.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).