Messages in this thread Patch in this message | | | From | Shaohua Li <> | Subject | [PATCH trival 1/2] bpf: clean up put_cpu_var usage | Date | Mon, 26 Sep 2016 11:14:50 -0700 |
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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: Shaohua Li <shli@fb.com> --- kernel/bpf/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c index 03fd23d..b73913b 100644 --- a/kernel/bpf/core.c +++ b/kernel/bpf/core.c @@ -1031,7 +1031,7 @@ u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5) 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; } -- 2.9.3
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