linux-kernel - [PATCH 4/8] Use __kernel_long

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Message-Id: <1388182464-28428-5-git-send-email-hjl.tools@gmail.com>
Date:	Fri, 27 Dec 2013 14:14:20 -0800
From:	"H.J. Lu" <hjl.tools@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Cc:	"H.J. Lu" <hjl.tools@...il.com>
Subject: [PATCH 4/8] Use __kernel_long_t in struct msgbuf

X32 msgsnd/msgrcv system calls are the same as x86-64 msgsnd/msgrcv system
calls, which use 64-bit integer for long in struct msgbuf . But x32 long
is 32 bit.  This patch replaces long in struct msgbuf with __kernel_long_t.

Signed-off-by: H.J. Lu <hjl.tools@...il.com>
---
 include/uapi/linux/msg.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h
index 22d95c6..a703755 100644
--- a/include/uapi/linux/msg.h
+++ b/include/uapi/linux/msg.h
@@ -34,8 +34,8 @@ struct msqid_ds {
 
 /* message buffer for msgsnd and msgrcv calls */
 struct msgbuf {
-	long mtype;         /* type of message */
-	char mtext[1];      /* message text */
+	__kernel_long_t mtype;          /* type of message */
+	char mtext[1];                  /* message text */
 };
 
 /* buffer for msgctl calls IPC_INFO, MSG_INFO */
-- 
1.8.4.2

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