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From: "H.J. Lu" <hjl.tools@gmail.com>
To: "H. Peter Anvin" <hpa@zytor.com>, LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] Use __kernel_long_t in struct msgbuf
Date: Wed, 25 Dec 2013 07:58:50 -0800	[thread overview]
Message-ID: <20131225155850.GA26252@gmail.com> (raw)

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@gmail.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


             reply	other threads:[~2013-12-25 15:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-25 15:58 H.J. Lu [this message]
2013-12-26 15:51 ` [PATCH] Use __kernel_long_t in struct msgbuf H.J. Lu

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