Re: [PATCH] rcu: remove surplus instrumentation_end in rcu_nmi_enter

2021-01-12 Thread Paul E. McKenney
On Mon, Jan 11, 2021 at 09:08:59AM +0800, Zhouyi Zhou wrote: > In function rcu_nmi_enter, there is a surplus instrumentation_end > in second branch of if statement, although objtool check -f vmlinux.o will > not complain because of its inability to correctly cover all cases > (objtool will visit th

[PATCH] rcu: remove surplus instrumentation_end in rcu_nmi_enter

2021-01-10 Thread Zhouyi Zhou
In function rcu_nmi_enter, there is a surplus instrumentation_end in second branch of if statement, although objtool check -f vmlinux.o will not complain because of its inability to correctly cover all cases (objtool will visit the third branch first, which markes following trace_rcu_dyntick as vi