sparc: Merge asm-sparc{,64}/shmbuf.h

Padding in the shmbuf structure made conditional
as only 32 bit sparc did so.

:$ diff -u include/asm-sparc/shmbuf.h include/asm-sparc64/shmbuf.h
:-- include/asm-sparc/shmbuf.h	2008-06-13 06:42:07.000000000 +0200
:++ include/asm-sparc64/shmbuf.h	2008-06-13 06:42:07.000000000 +0200
:@@ -1,23 +1,19 @@
:-#ifndef _SPARC_SHMBUF_H
:-#define _SPARC_SHMBUF_H
:+#ifndef _SPARC64_SHMBUF_H
:+#define _SPARC64_SHMBUF_H
:
: /*
:- * The shmid64_ds structure for sparc architecture.
:+ * The shmid64_ds structure for sparc64 architecture.
:  * Note extra padding because this structure is passed back and forth
:  * between kernel and user space.
:  *
:  * Pad space is left for:
:- * - 64-bit time_t to solve y2038 problem
:- * - 2 miscellaneous 32-bit values
:+ * - 2 miscellaneous 64-bit values
:  */
:
: struct shmid64_ds {
: 	struct ipc64_perm	shm_perm;	/* operation perms */
:-	unsigned int		__pad1;
: 	__kernel_time_t		shm_atime;	/* last attach time */
:-	unsigned int		__pad2;
: 	__kernel_time_t		shm_dtime;	/* last detach time */
:-	unsigned int		__pad3;
: 	__kernel_time_t		shm_ctime;	/* last change time */
: 	size_t			shm_segsz;	/* size of segment (bytes) */
: 	__kernel_pid_t		shm_cpid;	/* pid of creator */
:@@ -39,4 +35,4 @@
: 	unsigned long	__unused4;
: };
:
:-#endif /* _SPARC_SHMBUF_H */
:+#endif /* _SPARC64_SHMBUF_H */

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 11 insertions, 3 deletions

diff --git a/include/asm-sparc/shmbuf.h b/include/asm-sparc/shmbuf.h
index 1ff9da8bec73..83a16055363f 100644
--- a/include/asm-sparc/shmbuf.h
+++ b/include/asm-sparc/shmbuf.h
@@ -11,13 +11,19 @@
  * - 2 miscellaneous 32-bit values
  */
 
+#if defined(__sparc__) && defined(__arch64__)
+# define PADDING(x)
+#else
+# define PADDING(x) unsigned int x;
+#endif
+
 struct shmid64_ds {
         struct ipc64_perm       shm_perm;       /* operation perms */
-        unsigned int            __pad1;
+        PADDING(__pad1)
         __kernel_time_t         shm_atime;      /* last attach time */
-        unsigned int            __pad2;
+        PADDING(__pad2)
         __kernel_time_t         shm_dtime;      /* last detach time */
-        unsigned int            __pad3;
+        PADDING(__pad3)
         __kernel_time_t         shm_ctime;      /* last change time */
         size_t                  shm_segsz;      /* size of segment (bytes) */
         __kernel_pid_t          shm_cpid;       /* pid of creator */
@@ -39,4 +45,6 @@ struct shminfo64 {
         unsigned long   __unused4;
 };
 
+#undef PADDING
+
 #endif /* _SPARC_SHMBUF_H */