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ARM: 7780/1: add missing linker section markup to head-common.S

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Macro __INIT is used to place various code in head-common.S into the init
section. This should be matched by a closing __FINIT. Also, add an
explicit ".text" to ensure subsequent code is placed into the correct
section; __FINIT is simply a closing marker to match __INIT and doesn't
guarantee to revert to .text.

This historically caused no problem, because macro __CPUINIT was used at
the exact location where __FINIT was missing, which then placed following
code into the cpuinit section. However, with commit 22f0a2736 "init.h:
remove __cpuinit sections from the kernel" applied, __CPUINIT becomes a
no-op, thus leaving all this code in the init section, rather than the
regular text section. This caused issues such as secondary CPU boot
failures or crashes.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Stephen Warren 2013-07-05 22:59:42 +01:00 committed by Russell King
parent 8bb495e3f0
commit 8c69d7af12
1 changed files with 3 additions and 0 deletions
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arch/arm/kernel/head-common.S
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@ -133,6 +133,9 @@ ENTRY(lookup_processor_type)
ldmfd sp!, {r4 - r6, r9, pc}
ENDPROC(lookup_processor_type)
__FINIT
.text
/*
* Read processor ID register (CP#15, CR0), and look up in the linker-built
* supported processor list. Note that we can't use the absolute addresses