From 3558528680f70d4fb1e0c51459e1696d617c6c3b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 22 May 2019 18:35:16 -0700
Subject: [PATCH] ipv4/igmp: fix build error if !CONFIG_IP_MULTICAST

BugLink: https://bugs.launchpad.net/bugs/1837518

[ Upstream commit 903869bd10e6719b9df6718e785be7ec725df59f ]

ip_sf_list_clear_all() needs to be defined even if !CONFIG_IP_MULTICAST

Fixes: 3580d04aa674 ("ipv4/igmp: fix another memory leak in igmpv3_del_delrec()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
---
 net/ipv4/igmp.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 9822366d2b41..1e79e1bca13c 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -187,6 +187,17 @@ static void ip_ma_put(struct ip_mc_list *im)
 	     pmc != NULL;					\
 	     pmc = rtnl_dereference(pmc->next_rcu))
 
+static void ip_sf_list_clear_all(struct ip_sf_list *psf)
+{
+	struct ip_sf_list *next;
+
+	while (psf) {
+		next = psf->sf_next;
+		kfree(psf);
+		psf = next;
+	}
+}
+
 #ifdef CONFIG_IP_MULTICAST
 
 /*
@@ -632,17 +643,6 @@ static void igmpv3_clear_zeros(struct ip_sf_list **ppsf)
 	}
 }
 
-static void ip_sf_list_clear_all(struct ip_sf_list *psf)
-{
-	struct ip_sf_list *next;
-
-	while (psf) {
-		next = psf->sf_next;
-		kfree(psf);
-		psf = next;
-	}
-}
-
 static void kfree_pmc(struct ip_mc_list *pmc)
 {
 	ip_sf_list_clear_all(pmc->sources);
-- 
2.39.5