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authorRussell King <rmk+kernel@arm.linux.org.uk>2015-08-25 14:59:15 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2015-08-25 16:14:42 +0100
commit08446b129bbde34665c423d882f857a45b8c3aed (patch)
tree7278a8a8e379265d9853f41af208bc7e1c738196 /arch/arm/lib
parent1fb6755f16872ad256c18cce2830f9087502dffd (diff)
downloadlinux-linaro-stable-08446b129bbde34665c423d882f857a45b8c3aed.tar.gz
ARM: mm: improve do_ldrd_abort macro
Improve the do_ldrd_abort macro code - firstly, it inefficiently checks for the LDRD encoding by doing a multi-stage test of various bits. This can be simplified by generating a mask, bitmasking the instruction and then comparing the result. Secondly, we want to be able to test the result rather than branching to do_DataAbort, so remove the branch at the end and rename the macro to 'teq_ldrd' to reflect it's new usage. teq_ldrd macro returns 'eq' if the instruction was a LDRD. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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