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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2009-03-12 18:03:16 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-03-12 21:33:03 +0000 |
| commit | 446c92b2901bedb3725d29b4e73def8aba623ffc (patch) | |
| tree | 5669761e042f8321214ca5a975fec536fa5f0efd /arch/arm/mm/copypage-v4wt.c | |
| parent | 9311c593f24f28de2a339da602644f0f7ae0fc60 (diff) | |
| download | blackbird-op-linux-446c92b2901bedb3725d29b4e73def8aba623ffc.tar.gz blackbird-op-linux-446c92b2901bedb3725d29b4e73def8aba623ffc.zip | |
[ARM] 5421/1: ftrace: fix crash due to tracing of __naked functions
This is a fix for the following crash observed in 2.6.29-rc3:
http://lkml.org/lkml/2009/1/29/150
On ARM it doesn't make sense to trace a naked function because then
mcount is called without stack and frame pointer being set up and there
is no chance to restore the lr register to the value before mcount was
called.
Reported-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Tested-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Cc: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Steven Rostedt <rostedt@home.goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/copypage-v4wt.c')
| -rw-r--r-- | arch/arm/mm/copypage-v4wt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/copypage-v4wt.c b/arch/arm/mm/copypage-v4wt.c index 0f1188efae45..300efafd6643 100644 --- a/arch/arm/mm/copypage-v4wt.c +++ b/arch/arm/mm/copypage-v4wt.c @@ -20,7 +20,7 @@ * dirty data in the cache. However, we do have to ensure that * subsequent reads are up to date. */ -static void __attribute__((naked)) +static void __naked v4wt_copy_user_page(void *kto, const void *kfrom) { asm("\ |
