tree 081191e6274817d2f3d9bee8b27b1f8f145b939f
parent 6ce3e9c2a2cfb8849dd471349fe5e6bc37c0f13f
author Graf Yang <graf.yang@analog.com> 1268816432 +0000
committer Mike Frysinger <vapier@gentoo.org> 1274552344 -0400

Blackfin: allow NMI watchdog to be used w/RETN as a scratch reg

NMIs are not safe to return from because many anomaly workarounds are
implemented by disabling interrupts.  The NMI obviously violates this
assumption.  Since the NMI watchdog never returns, we don't have to
worry about it clobbering RETN when it is being used as a scratch register
with the exception stack.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>