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[2a01:cb05:8918:ce00:dd1a:5a4f:9908:f2d5]) by smtp.gmail.com with ESMTPSA id c9sm4519476wrn.65.2020.12.09.07.48.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Dec 2020 07:48:43 -0800 (PST) Date: Wed, 9 Dec 2020 16:48:41 +0100 From: Guillaume Nault To: David Miller , Jakub Kicinski Cc: netdev@vger.kernel.org Subject: [PATCH net] net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower Message-ID: <0e248b0464673b412d428666d10b6d3c208809bf.1607528860.git.gnault@redhat.com> MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL is a u32 attribute (MPLS label is 20 bits long). Fixes the following bug: $ tc filter add dev ethX ingress protocol mpls_uc \ flower mpls lse depth 2 label 256 \ action drop $ tc filter show dev ethX ingress filter protocol mpls_uc pref 49152 flower chain 0 filter protocol mpls_uc pref 49152 flower chain 0 handle 0x1 eth_type 8847 mpls lse depth 2 label 0 <-- invalid label 0, should be 256 ... Fixes: 61aec25a6db5 ("cls_flower: Support filtering on multiple MPLS Label Stack Entries") Signed-off-by: Guillaume Nault Reviewed-by: Davide Caratti --- net/sched/cls_flower.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index fed18fd2c50b..1319986693fc 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -2424,8 +2424,8 @@ static int fl_dump_key_mpls_opt_lse(struct sk_buff *skb, return err; } if (lse_mask->mpls_label) { - err = nla_put_u8(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL, - lse_key->mpls_label); + err = nla_put_u32(skb, TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL, + lse_key->mpls_label); if (err) return err; }