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From: Ralf Baechle <ralf@linux-mips.org>
To: "Ralf Rösch" <linux@cantastic.de>
Cc: linux-mips@linux-mips.org
Subject: Re: Compiler warnings / linux-2.6
Date: Tue, 7 Jun 2005 12:37:31 +0100	[thread overview]
Message-ID: <20050607113731.GB4654@linux-mips.org> (raw)
In-Reply-To: <42A47252.2010906@cantastic.de>

On Mon, Jun 06, 2005 at 05:57:06PM +0200, Ralf Rösch wrote:

> Since a few days I get a lot of compiler warnings:
> 
> include2/asm/dsp.h: In function `__init_dsp':
> include2/asm/dsp.h:34: warning: statement with no effect
> 
> What could I do to prevent these?

Reporting them.  A fairly obvious and harmless problem.  I'm surprised my
compiler (gcc 3.4) doesn't throw these warnings.

  Ralf

Index: include/asm-mips/mipsregs.h
===================================================================
RCS file: /home/cvs/linux/include/asm-mips/mipsregs.h,v
retrieving revision 1.73
diff -u -r1.73 mipsregs.h
--- include/asm-mips/mipsregs.h	31 May 2005 11:49:19 -0000	1.73
+++ include/asm-mips/mipsregs.h	7 Jun 2005 11:39:10 -0000
@@ -1010,8 +1010,6 @@
 
 #define wrdsp(val, mask)						\
 do {									\
-	unsigned int __res;						\
-									\
 	__asm__ __volatile__(						\
 	"	.set	push					\n"	\
 	"	.set	noat					\n"	\
@@ -1021,7 +1019,6 @@
 	"	.set	pop					\n"	\
         :								\
 	: "r" (val), "i" (mask));					\
-        __res;								\
 } while (0)
 
 #if 0	/* Need DSP ASE capable assembler ... */

      reply	other threads:[~2005-06-07 11:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-06 15:57 Compiler warnings / linux-2.6 Ralf Rösch
2005-06-07 11:37 ` Ralf Baechle [this message]

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