From: Daniel Borkmann <daniel@iogearbox.net>
Date: Thu, 22 Sep 2016 23:28:36 +0000 (+0200)
Subject: bpf: use bpf_get_smp_processor_id_proto instead of raw one
X-Git-Tag: v4.9.8~1241^2~82^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=669dc4d76d0ecc2d795df735839f43cfddf9f617;p=platform%2Fkernel%2Flinux-rpi3.git

bpf: use bpf_get_smp_processor_id_proto instead of raw one

Same motivation as in commit 80b48c445797 ("bpf: don't use raw processor
id in generic helper"), but this time for XDP typed programs. Thus, allow
for preemption checks when we have DEBUG_PREEMPT enabled, and otherwise
use the raw variant.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/filter.c b/net/core/filter.c
index e5d9977..acf84fb 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -2551,6 +2551,8 @@ xdp_func_proto(enum bpf_func_id func_id)
 	switch (func_id) {
 	case BPF_FUNC_perf_event_output:
 		return &bpf_xdp_event_output_proto;
+	case BPF_FUNC_get_smp_processor_id:
+		return &bpf_get_smp_processor_id_proto;
 	default:
 		return sk_filter_func_proto(func_id);
 	}