linux-kernel - Re: [PATCH] ahci: qoriq: fixed using uninitialized variable warnings

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Date:	Mon, 14 Sep 2015 12:00:41 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Fengguang Wu <fengguang.wu@...el.com>,
	Yuantian Tang <Yuantian.Tang@...escale.com>,
	"hdegoede@...hat.com" <hdegoede@...hat.com>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH] ahci: qoriq: fixed using uninitialized variable warnings

Hello, Arnd.

On Mon, Sep 14, 2015 at 09:45:33AM +0200, Arnd Bergmann wrote:
> In general, we really want to leave drivers with a COMPILE_TEST dependency
> so they at least get cross-built on x86, ideally on all architectures.

Yeah, as long as it doesn't trigger silly warnings or errors on x86,
COMPILE_TEST is usually a good idea.

> Does something like the below help? I think we really just need to help
> gcc a little to see the obvious.

We already tried cachine qoriq_priv->type in a local.  Not sure this
would make much difference.  It looks like the warning goes away with
newer gcc.  I'm inclined to just leave it as-is.

Thanks.

-- 
tejun
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