linux-kernel - Re: linux-next: build failure after merge of the pm tree (and warning)

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Date:	Tue, 15 Nov 2011 00:14:50 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Stephen Rothwell <sfr@...b.auug.org.au>, Tejun Heo <tj@...nel.org>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	Vinod Koul <vinod.koul@...el.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: linux-next: build failure after merge of the pm tree (and warning)

On Monday, November 14, 2011, Stephen Rothwell wrote:
> Hi Rafael,
> 
> After merging the pm tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
> 
> drivers/dma/dmatest.c: In function 'dmatest_func':
> drivers/dma/dmatest.c:255:2: error: implicit declaration of function 'set_freezable_with_signal' [-Werror=implicit-function-declaration]
> 
> Caused by commit cd3bc8fbc2d5 ("freezer: kill unused
> set_freezable_with_signal()") interacting with commit 981ed70d8e4f
> ("dmatest: make dmatest threads freezable") from Linus' tree (merged into
> v3.2-rc1).
> 
> I reverted the pm tree commit for today.

Thanks, I've added the following patch to linux-pm/linux-next, which should
fix this problem (Tejun, if that's not the right thing to do, please let me
know).

Rafael


---
From: Rafael J. Wysocki <rjw@...k.pl>
Subject: Freezer: Make dmatest_func() use set_freezable()

According to the commit cd3bc8fbc2d55ae0918184fb34992054dc4eb710
(freezer: kill unused set_freezable_with_signal()) changelog,
it should be sufficient to use set_freezable() instead of
set_freezable_with_signal(), which has been removed, in
dmatest_func(), so do that and fix a build issue.

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
---
 drivers/dma/dmatest.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux/drivers/dma/dmatest.c
===================================================================
--- linux.orig/drivers/dma/dmatest.c
+++ linux/drivers/dma/dmatest.c
@@ -252,7 +252,7 @@ static int dmatest_func(void *data)
 	int			i;
 
 	thread_name = current->comm;
-	set_freezable_with_signal();
+	set_freezable();
 
 	ret = -ENOMEM;
 
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