tree a6ed6195ff6f320cd733442eb08a1d7b80eeedca
parent bd72ca442a5163a818890e158328270cc24fb6ce
author Ronald G. Minnich <rminnich@gmail.com> 1468863542 -0700
committer Barret Rhoden <brho@cs.berkeley.edu> 1468876155 -0400

parlib/x86/atomic.h: (void) __sync_fetch_and_* calls

In several cases the return from __sync_fetch_and_* is ignored
and external builds were throwing errors when -Werror was used.

Indicate via the standard (void) cast that the
return from the call can be ignored.

Change-Id: I944cbaf25f5e7ecadf01d206fcc0c74935183780
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Signed-off-by: Barret Rhoden <brho@cs.berkeley.edu>