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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Spencer Baugh <sbaugh@catern.com>,
	Jack Morgenstein <jackm@dev.mellanox.co.il>,
	Moni Shoua <monis@mellanox.com>,
	Leon Romanovsky <leon@kernel.org>,
	Doug Ledford <dledford@redhat.com>
Subject: [PATCH 4.4 07/23] RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
Date: Tue, 31 Jan 2017 06:37:09 +0100	[thread overview]
Message-ID: <20170131053625.249664356@linuxfoundation.org> (raw)
In-Reply-To: <20170131053624.926643555@linuxfoundation.org>

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jack Morgenstein <jackm@dev.mellanox.co.il>

commit b4cfe3971f6eab542dd7ecc398bfa1aeec889934 upstream.

If IPV6 has not been enabled in the underlying kernel, we must avoid
calling IPV6 procedures in rdma_cm.ko.

This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements
surrounding any code which calls external IPV6 procedures.

In the instance fixed here, procedure cma_bind_addr() called
ipv6_addr_type() -- which resulted in calling external procedure
__ipv6_addr_type().

Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution")
Cc: Spencer Baugh <sbaugh@catern.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/infiniband/core/cma.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2578,7 +2578,8 @@ static int cma_bind_addr(struct rdma_cm_
 	if (!src_addr || !src_addr->sa_family) {
 		src_addr = (struct sockaddr *) &id->route.addr.src_addr;
 		src_addr->sa_family = dst_addr->sa_family;
-		if (dst_addr->sa_family == AF_INET6) {
+		if (IS_ENABLED(CONFIG_IPV6) &&
+		    dst_addr->sa_family == AF_INET6) {
 			struct sockaddr_in6 *src_addr6 = (struct sockaddr_in6 *) src_addr;
 			struct sockaddr_in6 *dst_addr6 = (struct sockaddr_in6 *) dst_addr;
 			src_addr6->sin6_scope_id = dst_addr6->sin6_scope_id;

  parent reply	other threads:[~2017-01-31  5:44 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-31  5:37 [PATCH 4.4 00/23] 4.4.46-stable review Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 01/23] fbdev: color map copying bounds checking Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 02/23] tile/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 04/23] mm/mempolicy.c: do not put mempolicy before using its nodemask Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 05/23] sysctl: fix proc_doulongvec_ms_jiffies_minmax() Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 06/23] ISDN: eicon: silence misleading array-bounds warning Greg Kroah-Hartman
2017-01-31  5:37 ` Greg Kroah-Hartman [this message]
2017-01-31  5:37 ` [PATCH 4.4 08/23] s390/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 10/23] can: ti_hecc: add missing prepare and unprepare of the clock Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 11/23] ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 12/23] ARC: [arcompact] handle unaligned access delay slot corner case Greg Kroah-Hartman
2017-02-10 12:51   ` Ben Hutchings
2017-02-10 13:19     ` Greg Kroah-Hartman
2017-02-10 13:26       ` Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 13/23] parisc: Dont use BITS_PER_LONG in userspace-exported swab.h header Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 14/23] nfs: Dont increment lock sequence ID after NFS4ERR_MOVED Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 15/23] NFSv4.0: always send mode in SETATTR after EXCLUSIVE4 Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 16/23] SUNRPC: cleanup ida information when removing sunrpc module Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 18/23] IB/ipoib: move back IB LL address into the hard header Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 19/23] IB/umem: Release pid in error and ODP flow Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 20/23] [media] s5k4ecgx: select CRC32 helper Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 21/23] pinctrl: broxton: Use correct PADCFGLOCK offset Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 22/23] platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT Greg Kroah-Hartman
2017-01-31  5:37 ` [PATCH 4.4 23/23] mm, memcg: do not retry precharge charges Greg Kroah-Hartman
2017-01-31 17:23 ` [PATCH 4.4 00/23] 4.4.46-stable review Guenter Roeck
2017-01-31 22:06 ` Shuah Khan

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