commit 8f146d0204a874b6b1f5344ed578796e2fcd7e9c
author Chen Gang <gang.chen@asianux.com> Mon Oct 28 11:00:38 2013 +0800
committer Vineet Gupta <vgupta@synopsys.com> Wed Nov 06 10:41:44 2013 +0530
tree 7dab14109f5555a8d1d430ea9992a45dc30cbd7e
parent 4782f7f9aeba4dfd383c532e96bebf83ce0b9748

arc: export symbol for save_stack_trace() in stacktrace.c

Need export its symbol just like other architectures done, or can not
pass compiling with allmodconfig, the related error:

    MODPOST 2994 modules
  ERROR: "save_stack_trace" [kernel/backtracetest.ko] undefined!
  ERROR: "save_stack_trace" [drivers/md/persistent-data/dm-persistent-data.ko] undefined!

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>