ARM: 8790/1: signal: always use __copy_to_user to save iwmmxt context

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When setting a dummy iwmmxt context, create a local instance and
use __copy_to_user both cases whether iwmmxt is being used or not.
This has the benefit of disabling/enabling PAN once for the whole copy
intead of once per write.

Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

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Julien Thierry 2018-09-11 10:12:05 +01:00 • committed by Russell King

parent 5ca451cf6e

commit 73839798af

1 changed files with 6 additions and 4 deletions

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arch/arm/kernel/signal.c

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