linux-kernel - linux-next: upstream tree build failure

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Message-Id: <20090423160656.fac84e3f.sfr@canb.auug.org.au>
Date:	Thu, 23 Apr 2009 16:06:56 +1000
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>
Cc:	linux-next@...r.kernel.org, <linuxppc-dev@...abs.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: linux-next: upstream tree build failure

Hi all,

[I am now using gcc version 4.4.0 ...]

Today's linux-next build (powerpc ppc44x_defconfig) failed like this:

arch/powerpc/mm/tlb_nohash_low.S:206:6: error: #elif with no expression

Previous gcc versions didn't notice this because one of the preceding
#ifs always evaluated to true.  I have applied the following patch for today.

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Thu, 23 Apr 2009 16:00:47 +1000
Subject: [PATCH] powerpc: fix for long standing bug noticed by gcc 4.4.0

Previous gcc versions didn't notice this because one of the preceding

gcc 4.4.0 produced this error:

arch/powerpc/mm/tlb_nohash_low.S:206:6: error: #elif with no expression

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/powerpc/mm/tlb_nohash_low.S |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index 45fed36..21e1b9a 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -203,6 +203,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
 	isync
 1:	wrtee	r10
 	blr
-#elif
+#else
 #error Unsupported processor type !
 #endif
-- 
1.6.2.3

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