linux-kernel - [PATCH 4.2.y-ckt 157/206] security: drop the unused hook skb_owned

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Date:	Thu,  9 Jun 2016 14:16:06 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Paolo Abeni <pabeni@...hat.com>,
	James Morris <james.l.morris@...cle.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 157/206] security: drop the unused hook skb_owned_by

4.2.8-ckt12 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Paolo Abeni <pabeni@...hat.com>

commit 3c9d6296b7aee536a96ea2b53a15d23511738c1c upstream.

The skb_owned_by hook was added with the commit ca10b9e9a8ca
("selinux: add a skb_owned_by() hook") and later removed
when said commit was reverted.

Later on, when switching to list of hooks, a field named
'skb_owned_by' was included into the security_hook_head struct,
but without any users nor caller.

This commit removes the said left-over field.

Fixes: b1d9e6b0646d ("LSM: Switch to lists of hooks")
Signed-off-by: Paolo Abeni <pabeni@...hat.com>
Acked-by: Casey Schaufler <casey@...aufler-ca.com>
Acked-by: Paul Moore <pmoore@...l-moore.com>
Signed-off-by: James Morris <james.l.morris@...cle.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 include/linux/lsm_hooks.h | 1 -
 security/security.c       | 1 -
 2 files changed, 2 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 9429f05..0045c2c 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1797,7 +1797,6 @@ struct security_hook_heads {
 	struct list_head tun_dev_attach_queue;
 	struct list_head tun_dev_attach;
 	struct list_head tun_dev_open;
-	struct list_head skb_owned_by;
 #endif	/* CONFIG_SECURITY_NETWORK */
 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 	struct list_head xfrm_policy_alloc_security;
diff --git a/security/security.c b/security/security.c
index 9942836..1fbe2c1 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1843,7 +1843,6 @@ struct security_hook_heads security_hook_heads = {
 	.tun_dev_attach =
 		LIST_HEAD_INIT(security_hook_heads.tun_dev_attach),
 	.tun_dev_open =	LIST_HEAD_INIT(security_hook_heads.tun_dev_open),
-	.skb_owned_by =	LIST_HEAD_INIT(security_hook_heads.skb_owned_by),
 #endif	/* CONFIG_SECURITY_NETWORK */
 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 	.xfrm_policy_alloc_security =
-- 
2.7.4