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powerpc: Create msr_check_and_{set,clear}()
authorAnton Blanchard <anton@samba.org>
Thu, 29 Oct 2015 00:44:04 +0000 (11:44 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 1 Dec 2015 02:52:25 +0000 (13:52 +1100)
commita0e72cf12b1a1f159b6822ed2e1e41893d996fc7
tree341c39ac34fad618accdb2a37aaba9af83a1a6d7tree
parent1552cd703cf5a07caeb17ccd82f80e20a23b1707commit | diff
powerpc: Create msr_check_and_{set,clear}()

Create helper functions to set and clear MSR bits after first
checking if they are already set. Grouping them will make it
easy to avoid the MSR writes in a subsequent optimisation.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/process.c diff | blob | history
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