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Commit b761fe22 authored by Shaohua Li's avatar Shaohua Li Committed by David S. Miller
Browse files

bpf: clean up put_cpu_var usage 



put_cpu_var takes the percpu data, not the data returned from
get_cpu_var.

This doesn't change the behavior.

Cc: Tejun Heo <tj@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: default avatarShaohua Li <shli@fb.com>
Acked-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e96e0ede

kernel/bpf/core.c

+1 −1
Original line number Diff line number Diff line
@@ -1031,7 +1031,7 @@ BPF_CALL_0(bpf_user_rnd_u32) 


	state = &get_cpu_var(bpf_user_rnd_state);

	res = prandom_u32_state(state);

	put_cpu_var(state);

	put_cpu_var(bpf_user_rnd_state);



	return res;

}