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authorRandy Dunlap <randy.dunlap@oracle.com>2007-05-08 11:31:11 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 22:15:13 +0400
commit6df95fd7ad9a842c1688d2b83bdcb7c82e9c8630 (patch)
treeebf36c4c218a1b6beeffc2e63340059069a036c3 /include/linux/const.h
parent8e39c933b1b7df501dbb68879fb1640e277b8a5c (diff)
downloadlinux-6df95fd7ad9a842c1688d2b83bdcb7c82e9c8630.tar.xz
consolidate asm/const.h to linux/const.h
Make a global linux/const.h header file instead of having multiple, per-arch files, and convert current users of asm/const.h to use linux/const.h. Built on x86_64 and sparc64. [akpm@linux-foundation.org: fix include/asm-x86_64/Kbuild] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/const.h')
-rw-r--r--include/linux/const.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/const.h b/include/linux/const.h
new file mode 100644
index 000000000000..07b300bfe34b
--- /dev/null
+++ b/include/linux/const.h
@@ -0,0 +1,19 @@
+/* const.h: Macros for dealing with constants. */
+
+#ifndef _LINUX_CONST_H
+#define _LINUX_CONST_H
+
+/* Some constant macros are used in both assembler and
+ * C code. Therefore we cannot annotate them always with
+ * 'UL' and other type specifiers unilaterally. We
+ * use the following macros to deal with this.
+ */
+
+#ifdef __ASSEMBLY__
+#define _AC(X,Y) X
+#else
+#define __AC(X,Y) (X##Y)
+#define _AC(X,Y) __AC(X,Y)
+#endif
+
+#endif /* !(_LINUX_CONST_H) */