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ARM: 8160/1: drop warning about return_address not using unwind tables

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The warning was introduced in 2009 (commit 4bf1fa5a34 ([ARM] 5613/1:
implement CALLER_ADDRESSx)). The only "problem" here is that
CALLER_ADDRESSx for x > 1 returns NULL which doesn't do much harm.

The drawback of implementing a fix (i.e. use unwind tables to implement CALLER_ADDRESSx) is that much of the unwinder code would need to be marked as not
traceable.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Uwe Kleine-König 2014-09-24 08:51:57 +01:00 committed by Russell King
parent c3c963e1fb
commit e16343c47e
1 changed files with 0 additions and 4 deletions
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4
arch/arm/kernel/return_address.c
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@ -59,10 +59,6 @@ void *return_address(unsigned int level)
#else /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) */
#if defined(CONFIG_ARM_UNWIND)
#warning "TODO: return_address should use unwind tables"
#endif
#endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
EXPORT_SYMBOL_GPL(return_address);