From eeb0ca88e430e9a09a56e14cfc974e1f02e17007 Mon Sep 17 00:00:00 2001 From: Ben Pfaff Date: Sun, 26 Nov 2017 16:26:41 -0800 Subject: [PATCH] tc: Fix build breakage on GCC 7 by annotating fall-through. Open vSwitch enables the GCC 7+ option that warns about fall-through switch statements. This commit fixes newly introduced warnings. Fixes: d6118e628988 ("netdev-tc-offloads: Verify csum flags on dump from tc") Signed-off-by: Ben Pfaff Acked-by: Paul Blakey --- lib/tc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/tc.c b/lib/tc.c index d3a031237ab..bfe20ce1a3b 100644 --- a/lib/tc.c +++ b/lib/tc.c @@ -1250,6 +1250,7 @@ csum_update_flag(struct tc_flower *flower, switch (htype) { case TCA_PEDIT_KEY_EX_HDR_TYPE_IP4: flower->csum_update_flags |= TCA_CSUM_UPDATE_FLAG_IPV4HDR; + /* Fall through. */ case TCA_PEDIT_KEY_EX_HDR_TYPE_IP6: case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP: case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP: @@ -1269,6 +1270,7 @@ csum_update_flag(struct tc_flower *flower, flower->key.ip_proto); break; } + /* Fall through. */ case TCA_PEDIT_KEY_EX_HDR_TYPE_ETH: return 0; /* success */