linux-kernel - Re: Build regressions/improvements in v3.13-rc7

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Date:	Mon, 6 Jan 2014 12:23:13 +0100
From:	Arend van Spriel <arend@...adcom.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: Build regressions/improvements in v3.13-rc7

On 01/06/2014 10:01 AM, Geert Uytterhoeven wrote:
>   + /scratch/kisskb/src/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c: warning: 'str_mask' may be used uninitialized in this function [-Wuninitialized]:  => 789:19
>   + /scratch/kisskb/src/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c: warning: 'str_shift' may be used uninitialized in this function [-Wuninitialized]:  => 790:21

This is a false negative. These variables are used within 'if (strtab !=
NULL) {...}'. strtab is initialized to NULL and when set to non-NULL
also str_mask and str_shift are set.

So it seems gcc falls short on -Wuninitialized here.

Regards,
Arend
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