From: maxime.ripard@bootlin.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] drm: sun4i: Fix a uninitialized variable warning.
Date: Wed, 19 Sep 2018 10:47:19 +0200 [thread overview]
Message-ID: <20180919084719.6ymf6h4eftomfab3@flea> (raw)
In-Reply-To: <1537255520-41614-1-git-send-email-zhongjiang@huawei.com>
On Tue, Sep 18, 2018 at 03:25:20PM +0800, zhong jiang wrote:
> Fix the following compile warning:
>
> drivers/gpu/drm/sun4i/sun4i_tcon.c:1088: warning: 'has_lvds_alt' may be used uninitialized in this function [-Wmaybe-uninitialized]
> bool has_lvds_rst, has_lvds_alt, can_lvds;
>
> Signed-off-by: zhong jiang <zhongjiang@huawei.com>
I can't see any code path that would lead to an uninitialized usage of
that variable.
Which compiler produced that warning? I tried building it today with
gcc 8.1.1, and I don't see that warning either.
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: zhong jiang <zhongjiang@huawei.com>
Cc: airlied@linux.ie, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] drm: sun4i: Fix a uninitialized variable warning.
Date: Wed, 19 Sep 2018 10:47:19 +0200 [thread overview]
Message-ID: <20180919084719.6ymf6h4eftomfab3@flea> (raw)
In-Reply-To: <1537255520-41614-1-git-send-email-zhongjiang@huawei.com>
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On Tue, Sep 18, 2018 at 03:25:20PM +0800, zhong jiang wrote:
> Fix the following compile warning:
>
> drivers/gpu/drm/sun4i/sun4i_tcon.c:1088: warning: 'has_lvds_alt' may be used uninitialized in this function [-Wmaybe-uninitialized]
> bool has_lvds_rst, has_lvds_alt, can_lvds;
>
> Signed-off-by: zhong jiang <zhongjiang@huawei.com>
I can't see any code path that would lead to an uninitialized usage of
that variable.
Which compiler produced that warning? I tried building it today with
gcc 8.1.1, and I don't see that warning either.
Maxime
--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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next prev parent reply other threads:[~2018-09-19 8:47 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-18 7:25 [PATCH] drm: sun4i: Fix a uninitialized variable warning zhong jiang
2018-09-18 7:25 ` zhong jiang
2018-09-19 8:47 ` Maxime Ripard [this message]
2018-09-19 8:47 ` Maxime Ripard
2018-09-19 9:01 ` zhong jiang
2018-09-19 9:01 ` zhong jiang
2018-09-21 14:26 ` Maxime Ripard
2018-09-21 14:26 ` Maxime Ripard
2018-09-21 14:49 ` zhong jiang
2018-09-21 14:49 ` zhong jiang
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