Revert back to using GCC builtins. This code triggers an off by one in
authormpi <mpi@openbsd.org>
Fri, 24 Apr 2015 15:26:22 +0000 (15:26 +0000)
committermpi <mpi@openbsd.org>
Fri, 24 Apr 2015 15:26:22 +0000 (15:26 +0000)
commitc32ad687d4f9d888e4b84a306286c1c917445103
treef138fe676b312bf4707c4f88df23711253dbd2fc
parentf91475cf6e533be54b19d8ce7f66319a7faa008a
Revert back to using GCC builtins.  This code triggers an off by one in
device_unref() as found by deraadt@.
sys/arch/powerpc/include/atomic.h