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From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Nathan Chancellor <nathan@kernel.org>
Cc: "Daniel Vetter" <daniel.vetter@ffwll.ch>,
	"Intel Graphics" <intel-gfx@lists.freedesktop.org>,
	llvm@lists.linux.dev,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	DRI <dri-devel@lists.freedesktop.org>,
	"Linux Next Mailing List" <linux-next@vger.kernel.org>,
	"Maxime Ripard" <maxime@cerno.tech>,
	"José Expósito" <jose.exposito89@gmail.com>
Subject: Re: linux-next: manual merge of the drm-misc tree with the origin tree
Date: Fri, 18 Nov 2022 09:06:36 +1100	[thread overview]
Message-ID: <20221118090636.00bfc293@canb.auug.org.au> (raw)
In-Reply-To: <Y3ZvffZiR+SgtY6h@dev-arch.thelio-3990X>

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Hi Nathan,

On Thu, 17 Nov 2022 10:29:33 -0700 Nathan Chancellor <nathan@kernel.org> wrote:
>
> This resolution is not quite right, as pointed out by clang:
> 
>     drivers/gpu/drm/vc4/vc4_hdmi.c:351:14: error: variable 'vc4_hdmi' is uninitialized when used here [-Werror,-Wuninitialized]
>             mutex_lock(&vc4_hdmi->mutex);
>                         ^~~~~~~~
>     ./include/linux/mutex.h:187:44: note: expanded from macro 'mutex_lock'
>     #define mutex_lock(lock) mutex_lock_nested(lock, 0)
>                                                ^~~~
>     drivers/gpu/drm/vc4/vc4_hdmi.c:322:27: note: initialize the variable 'vc4_hdmi' to silence this warning
>             struct vc4_hdmi *vc4_hdmi;
>                                      ^
>                                       = NULL
>     1 error generated.
> 
> Obviously, the assignment of vc4_hdmi should be before mutex_lock().

Thanks for pointing that out (silly me :-) ).  I have fixed up the
resolution for today.

-- 
Cheers,
Stephen Rothwell

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WARNING: multiple messages have this Message-ID (diff)
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Nathan Chancellor <nathan@kernel.org>
Cc: "Daniel Vetter" <daniel.vetter@ffwll.ch>,
	"Intel Graphics" <intel-gfx@lists.freedesktop.org>,
	llvm@lists.linux.dev,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	DRI <dri-devel@lists.freedesktop.org>,
	"Linux Next Mailing List" <linux-next@vger.kernel.org>,
	"Maxime Ripard" <maxime@cerno.tech>,
	"José Expósito" <jose.exposito89@gmail.com>
Subject: Re: [Intel-gfx] linux-next: manual merge of the drm-misc tree with the origin tree
Date: Fri, 18 Nov 2022 09:06:36 +1100	[thread overview]
Message-ID: <20221118090636.00bfc293@canb.auug.org.au> (raw)
In-Reply-To: <Y3ZvffZiR+SgtY6h@dev-arch.thelio-3990X>

[-- Attachment #1: Type: text/plain, Size: 1042 bytes --]

Hi Nathan,

On Thu, 17 Nov 2022 10:29:33 -0700 Nathan Chancellor <nathan@kernel.org> wrote:
>
> This resolution is not quite right, as pointed out by clang:
> 
>     drivers/gpu/drm/vc4/vc4_hdmi.c:351:14: error: variable 'vc4_hdmi' is uninitialized when used here [-Werror,-Wuninitialized]
>             mutex_lock(&vc4_hdmi->mutex);
>                         ^~~~~~~~
>     ./include/linux/mutex.h:187:44: note: expanded from macro 'mutex_lock'
>     #define mutex_lock(lock) mutex_lock_nested(lock, 0)
>                                                ^~~~
>     drivers/gpu/drm/vc4/vc4_hdmi.c:322:27: note: initialize the variable 'vc4_hdmi' to silence this warning
>             struct vc4_hdmi *vc4_hdmi;
>                                      ^
>                                       = NULL
>     1 error generated.
> 
> Obviously, the assignment of vc4_hdmi should be before mutex_lock().

Thanks for pointing that out (silly me :-) ).  I have fixed up the
resolution for today.

-- 
Cheers,
Stephen Rothwell

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WARNING: multiple messages have this Message-ID (diff)
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Nathan Chancellor <nathan@kernel.org>
Cc: "Daniel Vetter" <daniel.vetter@ffwll.ch>,
	"Intel Graphics" <intel-gfx@lists.freedesktop.org>,
	DRI <dri-devel@lists.freedesktop.org>,
	"José Expósito" <jose.exposito89@gmail.com>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Linux Next Mailing List" <linux-next@vger.kernel.org>,
	"Maxime Ripard" <maxime@cerno.tech>,
	llvm@lists.linux.dev
Subject: Re: linux-next: manual merge of the drm-misc tree with the origin tree
Date: Fri, 18 Nov 2022 09:06:36 +1100	[thread overview]
Message-ID: <20221118090636.00bfc293@canb.auug.org.au> (raw)
In-Reply-To: <Y3ZvffZiR+SgtY6h@dev-arch.thelio-3990X>

[-- Attachment #1: Type: text/plain, Size: 1042 bytes --]

Hi Nathan,

On Thu, 17 Nov 2022 10:29:33 -0700 Nathan Chancellor <nathan@kernel.org> wrote:
>
> This resolution is not quite right, as pointed out by clang:
> 
>     drivers/gpu/drm/vc4/vc4_hdmi.c:351:14: error: variable 'vc4_hdmi' is uninitialized when used here [-Werror,-Wuninitialized]
>             mutex_lock(&vc4_hdmi->mutex);
>                         ^~~~~~~~
>     ./include/linux/mutex.h:187:44: note: expanded from macro 'mutex_lock'
>     #define mutex_lock(lock) mutex_lock_nested(lock, 0)
>                                                ^~~~
>     drivers/gpu/drm/vc4/vc4_hdmi.c:322:27: note: initialize the variable 'vc4_hdmi' to silence this warning
>             struct vc4_hdmi *vc4_hdmi;
>                                      ^
>                                       = NULL
>     1 error generated.
> 
> Obviously, the assignment of vc4_hdmi should be before mutex_lock().

Thanks for pointing that out (silly me :-) ).  I have fixed up the
resolution for today.

-- 
Cheers,
Stephen Rothwell

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  reply	other threads:[~2022-11-17 22:07 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-15 23:57 linux-next: manual merge of the drm-misc tree with the origin tree Stephen Rothwell
2022-11-15 23:57 ` [Intel-gfx] " Stephen Rothwell
2022-11-15 23:57 ` Stephen Rothwell
2022-11-17 17:29 ` Nathan Chancellor
2022-11-17 17:29   ` [Intel-gfx] " Nathan Chancellor
2022-11-17 17:29   ` Nathan Chancellor
2022-11-17 22:06   ` Stephen Rothwell [this message]
2022-11-17 22:06     ` Stephen Rothwell
2022-11-17 22:06     ` [Intel-gfx] " Stephen Rothwell
2022-11-18  0:01     ` Nathan Chancellor
2022-11-18  0:01       ` [Intel-gfx] " Nathan Chancellor
2022-11-18  0:01       ` Nathan Chancellor
2022-11-18  9:20       ` Maxime Ripard
2022-11-18  9:20         ` [Intel-gfx] " Maxime Ripard
2022-11-18  9:20         ` Maxime Ripard
  -- strict thread matches above, loose matches on Subject: below --
2021-11-07 22:31 Stephen Rothwell
2021-11-07 22:31 ` Stephen Rothwell

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