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From: Christian Kujau <>
To: LKML <>
Subject: Re: error: 'cpus_in_crash' defined but not used
Date: Tue, 17 Jan 2012 21:13:05 -0800 (PST)	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, 17 Jan 2012 at 20:13, Christian Kujau wrote:
> compiling today's git (mainline, a25a2b8) on powerpc32 gives:
>   CC      arch/powerpc/kernel/crash.o
> cc1: warnings being treated as errors
> /usr/local/src/linux-2.6-git/arch/powerpc/kernel/crash.c:49: error: 
> ‘cpus_in_crash’ defined but not used
> make[2]: *** [arch/powerpc/kernel/crash.o] Error 1
> make[1]: *** [arch/powerpc/kernel] Error 2
> make: *** [sub-make] Error 2

I could not find cpus_in_crash anywhere in the sourcetree, except for 
arch/powerpc/kernel/crash.c. Moving the definition into the CONFIG_SMP 
ifdef helps on my UP system, of course - not sure about other machines 

diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index 28be345..abef751 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -46,7 +46,6 @@
 /* This keeps a track of which one is the crashing cpu. */
 int crashing_cpu = -1;
-static atomic_t cpus_in_crash;
 static int time_to_dump;
@@ -66,6 +65,7 @@ static int handle_fault(struct pt_regs *regs)
 #ifdef CONFIG_SMP
+static atomic_t cpus_in_crash;
 void crash_ipi_callback(struct pt_regs *regs)
 	static cpumask_t cpus_state_saved = CPU_MASK_NONE;

BOFH excuse #272:

Netscape has crashed

  reply	other threads:[~2012-01-18  5:13 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-18  4:13 error: ‘cpus_in_crash’ defined but not used Christian Kujau
2012-01-18  5:13 ` Christian Kujau [this message]
2012-01-21  0:45   ` error: 'cpus_in_crash' " Christian Kujau
2012-01-24 23:18     ` Benjamin Herrenschmidt

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