tree dddb20dbc9a5e594e406e71ed598039b33e0a4be
parent dd665be0e243873343a28e18f9f345927b658daf
author Russell King <rmk+kernel@armlinux.org.uk> 1463136020 +0100
committer Russell King <rmk+kernel@armlinux.org.uk> 1467903661 +0100

ARM: save and reset the address limit when entering an exception

When we enter an exception, the current address limit should not apply
to the exception context: if the exception context wishes to access
kernel space via the user accessors (eg, perf code), it must explicitly
request such access.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>