* [PATCH] Use __kernel_ulong_t in uapi struct ipc64_perm
@ 2013-12-25 15:45 H.J. Lu
2013-12-26 15:38 ` H.J. Lu
0 siblings, 1 reply; 2+ messages in thread
From: H.J. Lu @ 2013-12-25 15:45 UTC (permalink / raw)
To: H. Peter Anvin, LKML
X32 IPC system call is the same as x86-64 IPC system call, which uses
64-bit integer for unsigned long in struct ipc64_perm. But x32 long is
32 bit. This patch replaces unsigned long in uapi struct ipc64_perm with
__kernel_ulong_t.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
include/uapi/asm-generic/ipcbuf.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/uapi/asm-generic/ipcbuf.h b/include/uapi/asm-generic/ipcbuf.h
index 76982b2..3dbcc1e 100644
--- a/include/uapi/asm-generic/ipcbuf.h
+++ b/include/uapi/asm-generic/ipcbuf.h
@@ -27,8 +27,8 @@ struct ipc64_perm {
unsigned char __pad1[4 - sizeof(__kernel_mode_t)];
unsigned short seq;
unsigned short __pad2;
- unsigned long __unused1;
- unsigned long __unused2;
+ __kernel_ulong_t __unused1;
+ __kernel_ulong_t __unused2;
};
#endif /* __ASM_GENERIC_IPCBUF_H */
--
1.8.4.2
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH] Use __kernel_ulong_t in uapi struct ipc64_perm
2013-12-25 15:45 [PATCH] Use __kernel_ulong_t in uapi struct ipc64_perm H.J. Lu
@ 2013-12-26 15:38 ` H.J. Lu
0 siblings, 0 replies; 2+ messages in thread
From: H.J. Lu @ 2013-12-26 15:38 UTC (permalink / raw)
To: H. Peter Anvin, LKML
[-- Attachment #1: Type: text/plain, Size: 396 bytes --]
On Wed, Dec 25, 2013 at 07:45:41AM -0800, H.J. Lu wrote:
> X32 IPC system call is the same as x86-64 IPC system call, which uses
> 64-bit integer for unsigned long in struct ipc64_perm. But x32 long is
> 32 bit. This patch replaces unsigned long in uapi struct ipc64_perm with
> __kernel_ulong_t.
>
Here is the updated patch which uses __kernel_ulong_t only if
__BITS_PER_LONG == 64.
H.J.
[-- Attachment #2: 0003-Use-__kernel_ulong_t-in-uapi-struct-ipc64_perm.patch --]
[-- Type: text/plain, Size: 1150 bytes --]
>From 81b4c3c55f994d54eafcaf4adaa2a16786c41fdd Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 25 Dec 2013 07:13:02 -0800
Subject: [PATCH] Use __kernel_ulong_t in uapi struct ipc64_perm
X32 IPC system call is the same as x86-64 IPC system call, which uses
64-bit integer for unsigned long in struct ipc64_perm. But x32 long is
32 bit. This patch replaces unsigned long in uapi struct ipc64_perm with
__kernel_ulong_t if __BITS_PER_LONG == 64.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
include/uapi/asm-generic/ipcbuf.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/uapi/asm-generic/ipcbuf.h b/include/uapi/asm-generic/ipcbuf.h
index 76982b2..4635fa5 100644
--- a/include/uapi/asm-generic/ipcbuf.h
+++ b/include/uapi/asm-generic/ipcbuf.h
@@ -27,8 +27,13 @@ struct ipc64_perm {
unsigned char __pad1[4 - sizeof(__kernel_mode_t)];
unsigned short seq;
unsigned short __pad2;
+#if __BITS_PER_LONG == 64
+ __kernel_ulong_t __unused1;
+ __kernel_ulong_t __unused2;
+#else
unsigned long __unused1;
unsigned long __unused2;
+#endif
};
#endif /* __ASM_GENERIC_IPCBUF_H */
--
1.8.4.2
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