powerpc/security: split branch cache flush toggle from code patching

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Branch cache flushing code patching has inter-dependencies on both the
link stack and the count cache flushing state.

To make the code clearer and to separate the link stack and count
cache handling, split the "toggle" (setting up variables and printing
enable/disable) from the code patching.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Always print something, even if the flush is disabled]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200609070610.846703-5-npiggin@gmail.com

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Nicholas Piggin 2020-06-09 17:06:07 +10:00 • committed by Michael Ellerman

parent 1afe00c74f

commit c0036549a9

1 changed files with 51 additions and 43 deletions

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arch/powerpc/kernel/security.c

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