netdev - Re: [PATCHv4 3/4] sparc64: Avoid irqsave/restore on vio.lock if in

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 22 Oct 2014 09:42:13 +1100
From:	Julian Calaby <julian.calaby@...il.com>
To:	Sowmini Varadhan <sowmini.varadhan@...cle.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	sparclinux <sparclinux@...r.kernel.org>
Subject: Re: [PATCHv4 3/4] sparc64: Avoid irqsave/restore on vio.lock if in_softirq()

Hi Sowmini,

On Wed, Oct 22, 2014 at 9:39 AM, Sowmini Varadhan
<sowmini.varadhan@...cle.com> wrote:
> On (10/22/14 09:35), Julian Calaby wrote:
>> >  void vio_port_up(struct vio_driver_state *vio)
>> >  {
>> > -       unsigned long flags;
>> > +       unsigned long flags = 0;
>>
>> Is gcc not smart enough to know that this variable isn't used before
>> it's set? (I assume it isn't used elsewhere in this function)
>
> No, it's not used elsewhere in the function, and yes, I too was
> surprised by the build warning, which is why I initialized it
> as above.

Ok, fair enough then.

Thanks,

-- 
Julian Calaby

Email: julian.calaby@...il.com
Profile: http://www.google.com/profiles/julian.calaby/
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html