tree 342c0370d09ec4e72d8f894212c79090cf53fad4
parent 997153b9a75c08d545ad45e6f8ceb432435d2425
author Guo Ren <guoren@linux.alibaba.com> 1580608722 +0800
committer Guo Ren <guoren@linux.alibaba.com> 1582271004 +0800

csky: Fixup ftrace modify panic

During ftrace init, linux will replace all function prologues
(call_mcout) with nops, but it need flush_dcache and
invalidate_icache to make it work. So flush_cache functions
couldn't be nested called by ftrace framework.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>