From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Charles <18oliveira.charles@gmail.com>
Cc: Jiri Slaby <jslaby@suse.com>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
rodrigosiqueiramelo@gmail.com
Subject: Re: [PATCH] serial: sh-sci: fix uninitialized variable warning
Date: Tue, 18 Jun 2019 09:38:53 +0200 [thread overview]
Message-ID: <20190618073853.GA25598@kroah.com> (raw)
In-Reply-To: <20190613180824.6ajwjelzr5fmjnie@debie>
On Thu, Jun 13, 2019 at 03:08:24PM -0300, Charles wrote:
> Avoid following compiler warning on uninitialized variable
>
> In file included from ./include/linux/rwsem.h:16:0,
> from ./include/linux/notifier.h:15,
> from ./include/linux/clk.h:17,
> from drivers/tty/serial/sh-sci.c:24:
> drivers/tty/serial/sh-sci.c: In function ‘sci_dma_rx_submit’:
> ./include/linux/spinlock.h:288:3: warning: ‘flags’ may be used
> uninitialized in this function [-Wmaybe-uninitialized]
> _raw_spin_unlock_irqrestore(lock, flags); \
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/tty/serial/sh-sci.c:1353:16: note: ‘flags’ was declared here
> unsigned long flags;
> ^~~~~
What version of gcc is doing this? It should be smarter than that,
perhaps you should just upgrade.
thanks,
greg k-h
next prev parent reply other threads:[~2019-06-18 7:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 18:08 [PATCH] serial: sh-sci: fix uninitialized variable warning Charles
2019-06-13 20:13 ` Geert Uytterhoeven
2019-06-18 7:38 ` Greg Kroah-Hartman [this message]
2019-06-18 19:35 ` Charles Oliveira
2020-06-20 3:38 ` Kees Cook
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=20190618073853.GA25598@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=18oliveira.charles@gmail.com \
--cc=jslaby@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=rodrigosiqueiramelo@gmail.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).