linux-kernel - [PATCH 08/20] ipc/util: Drop ipc_rcu

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Date:   Thu, 25 May 2017 20:50:55 +0200
From:   Manfred Spraul <manfred@...orfullife.com>
To:     mtk.manpages@...il.com, Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, 1vier1@....de,
        Davidlohr Bueso <dave@...olabs.net>, mingo@...nel.org,
        peterz@...radead.org, fabf@...net.be,
        Manfred Spraul <manfred@...orfullife.com>
Subject: [PATCH 08/20] ipc/util: Drop ipc_rcu_free()

From: Kees Cook <keescook@...omium.org>

There are no more callers of ipc_rcu_free(), so remove it.

Signed-off-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Manfred Spraul <manfred@...orfullife.com>
---
 ipc/util.c | 7 -------
 ipc/util.h | 1 -
 2 files changed, 8 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index dd73feb..556884b 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -429,13 +429,6 @@ void ipc_rcu_putref(struct kern_ipc_perm *ptr,
 	call_rcu(&ptr->rcu, func);
 }
 
-void ipc_rcu_free(struct rcu_head *h)
-{
-	struct kern_ipc_perm *ptr = container_of(h, struct kern_ipc_perm, rcu);
-
-	kvfree(ptr);
-}
-
 /**
  * ipcperms - check ipc permissions
  * @ns: ipc namespace
diff --git a/ipc/util.h b/ipc/util.h
index 2578fd9..44efbc0 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -119,7 +119,6 @@ struct kern_ipc_perm *ipc_rcu_alloc(int size);
 int ipc_rcu_getref(struct kern_ipc_perm *ptr);
 void ipc_rcu_putref(struct kern_ipc_perm *ptr,
 			void (*func)(struct rcu_head *head));
-void ipc_rcu_free(struct rcu_head *h);
 
 struct kern_ipc_perm *ipc_lock(struct ipc_ids *, int);
 struct kern_ipc_perm *ipc_obtain_object_idr(struct ipc_ids *ids, int id);
-- 
2.9.3