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ARM: entry: prefetch/data abort helpers: avoid corrupting r4
authorRussell King <rmk+kernel@arm.linux.org.uk>
Sat, 25 Jun 2011 14:46:08 +0000 (15:46 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 29 Jun 2011 09:05:33 +0000 (10:05 +0100)
Replace r4 with ip for calling abort helpers - ip is allowed to be
corrupted by called functions in the ABI, so it makes more sense to
use such a register.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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