linux-kernel - [Patch 1/1] xpc_sn2: fix max() warning about pointers of different types.

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Date:	Wed, 1 Apr 2009 14:20:41 -0500
From:	Robin Holt <holt@....com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Sam Ravnborg <sam@...nborg.org>, linux-kernel@...r.kernel.org
Subject: [Patch 1/1] xpc_sn2: fix max() warning about pointers of different
	types.

Fix a minor compile warning when building on ia64.

drivers/misc/sgi-xp/xpc_sn2.c: In function ‘xpc_clear_remote_msgqueue_flags_sn2’:
drivers/misc/sgi-xp/xpc_sn2.c:1746: warning: comparison of distinct pointer types lacks a cast


Signed-off-by: Robin Holt <holt@....com>

---

 drivers/misc/sgi-xp/xpc_sn2.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
Index: 20090401-ia64-xpc-no-gru/drivers/misc/sgi-xp/xpc_sn2.c
===================================================================
--- 20090401-ia64-xpc-no-gru.orig/drivers/misc/sgi-xp/xpc_sn2.c	2009-04-01 10:50:19.000000000 -0500
+++ 20090401-ia64-xpc-no-gru/drivers/misc/sgi-xp/xpc_sn2.c	2009-04-01 11:27:42.005011690 -0500
@@ -1737,20 +1737,20 @@ xpc_clear_remote_msgqueue_flags_sn2(stru
 {
 	struct xpc_channel_sn2 *ch_sn2 = &ch->sn.sn2;
 	struct xpc_msg_sn2 *msg;
-	s64 put;
+	s64 put, remote_nentries = ch->remote_nentries;
 
 	/* flags are zeroed when the buffer is allocated */
-	if (ch_sn2->remote_GP.put < ch->remote_nentries)
+	if (ch_sn2->remote_GP.put < remote_nentries)
 		return;
 
-	put = max(ch_sn2->w_remote_GP.put, ch->remote_nentries);
+	put = max(ch_sn2->w_remote_GP.put, remote_nentries);
 	do {
 		msg = (struct xpc_msg_sn2 *)((u64)ch_sn2->remote_msgqueue +
-					     (put % ch->remote_nentries) *
+					     (put % remote_nentries) *
 					     ch->entry_size);
 		DBUG_ON(!(msg->flags & XPC_M_SN2_READY));
 		DBUG_ON(!(msg->flags & XPC_M_SN2_DONE));
-		DBUG_ON(msg->number != put - ch->remote_nentries);
+		DBUG_ON(msg->number != put - remote_nentries);
 		msg->flags = 0;
 	} while (++put < ch_sn2->remote_GP.put);
 }
--
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