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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2014-09-24 08:51:57 +0100 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2016-01-27 09:56:36 +0100 |
| commit | c49a18300ffce812f40ef269c76ddfbcbd01e5db (patch) | |
| tree | 7ae7d1391193a865b36d1a2ada33889431eaef3a /arch | |
| parent | 94738c4f7c1cfefee481a3d3e5c8f78de2c9fd41 (diff) | |
| download | lwn-c49a18300ffce812f40ef269c76ddfbcbd01e5db.tar.gz lwn-c49a18300ffce812f40ef269c76ddfbcbd01e5db.zip | |
ARM: 8160/1: drop warning about return_address not using unwind tables
commit e16343c47e4276f5ebc77ca16feb5e50ca1918f9 upstream.
The warning was introduced in 2009 (commit 4bf1fa5a34aa ([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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/kernel/return_address.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c index f6aa84d5b93c..98ea4b7eb406 100644 --- a/arch/arm/kernel/return_address.c +++ b/arch/arm/kernel/return_address.c @@ -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); |