Commits
Russell King committed b059bdc3932
ARM: entry: rejig register allocation in exception entry handlers
This allows us to avoid moving registers twice to work around the
clobbered registers when we add calls to trace_hardirqs_{on,off}.
Ensure that all SVC handlers return with SPSR in r5 for consistency.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>