Re: [PATCH 12/19] powerpc: Create msr_check_and_{set,clear}()

Hi Anton, [auto build test ERROR on powerpc/next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Anton-Blanchard/Context-switch-improvements/20151029-092229 config: powerpc-virtex_defconfig (attached as

[PATCH 12/19] 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 --- arch/powerpc/kernel/process.c | 107