linux-kernel - [PATCH] powerpc/srio: Fix the relocation errors when building with 64bit

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Date:	Tue, 6 Mar 2012 10:58:12 +0800
From:	Liu Gang <Gang.Liu@...escale.com>
To:	<linuxppc-dev@...ts.ozlabs.org>, <Alexandre.Bounine@....com>
CC:	<akpm@...ux-foundation.org>, <linux-kernel@...r.kernel.org>,
	<r58472@...escale.com>, <r61911@...escale.com>,
	<scottwood@...escale.com>, <galak@...nel.crashing.org>,
	<paul.gortmaker@...driver.com>, Liu Gang <Gang.Liu@...escale.com>
Subject: [PATCH] powerpc/srio: Fix the relocation errors when building with 64bit

For the file "arch/powerpc/sysdev/fsl_rio.c", there will be some relocation
errors while using the corenet64_smp_defconfig:

WARNING: modpost: Found 6 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
  GEN     .version
  CHK     include/generated/compile.h
  UPD     include/generated/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/powerpc/sysdev/built-in.o:(__ex_table+0x0):
	relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3208
arch/powerpc/sysdev/built-in.o:(__ex_table+0x2):
	relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'
arch/powerpc/sysdev/built-in.o:(__ex_table+0x4):
	relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3230
arch/powerpc/sysdev/built-in.o:(__ex_table+0x6):
	relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+c
arch/powerpc/sysdev/built-in.o:(__ex_table+0x8):
	relocation truncated to fit: R_PPC64_ADDR16 against `.text'+3250
arch/powerpc/sysdev/built-in.o:(__ex_table+0xa):
	relocation truncated to fit: R_PPC64_ADDR16 against `.fixup'+18

Rewrote the corresponding code with the support of 64bit building.

Signed-off-by: Liu Gang <Gang.Liu@...escale.com>
---
 arch/powerpc/sysdev/fsl_rio.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index a4c4f4a..5b6f556 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -66,8 +66,8 @@
 		"	li %0,%3\n"			\
 		"	b 2b\n"				\
 		".section __ex_table,\"a\"\n"		\
-		"	.align 2\n"			\
-		"	.long 1b,3b\n"			\
+			PPC_LONG_ALIGN "\n"		\
+			PPC_LONG "1b,3b\n"		\
 		".text"					\
 		: "=r" (err), "=r" (x)			\
 		: "b" (addr), "i" (-EFAULT), "0" (err))
-- 
1.7.0.4


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