The patch titled
Subject: linux/const.h: move UL() macro to include/linux/const.h
has been added to the -mm tree. Its filename is
linux-consth-move-ul-macro-to-include-linux-consth.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/linux-consth-move-ul-macro-to-include-linux-consth.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/linux-consth-move-ul-macro-to-include-linux-consth.patch
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------------------------------------------------------
From: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Subject: linux/const.h: move UL() macro to include/linux/const.h
ARM, ARM64 and UniCore32 duplicate the definition of UL():
#define UL(x) _AC(x, UL)
This is not actually arch-specific, so it will be useful to move it to a
common header. Currently, we only have the uapi variant for
linux/const.h, so I am creating include/linux/const.h.
I also added _UL(), _ULL() and ULL() because _AC() is mostly used in
the form either _AC(..., UL) or _AC(..., ULL). I expect they will be
replaced in follow-up cleanups. The underscore-prefixed ones should
be used for exported headers.
Link: http://lkml.kernel.org/r/1519301715-31798-4-git-send-email-yamada.masahiro@xxxxxxxxxxxxx
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
Acked-by: Guan Xuetao <gxt@xxxxxxxxxxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Acked-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/include/asm/memory.h | 6 ------
arch/arm64/include/asm/memory.h | 6 ------
arch/unicore32/include/asm/memory.h | 6 ------
include/linux/const.h | 9 +++++++++
include/uapi/linux/const.h | 3 +++
5 files changed, 12 insertions(+), 18 deletions(-)
diff -puN arch/arm64/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth arch/arm64/include/asm/memory.h
--- a/arch/arm64/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth
+++ a/arch/arm64/include/asm/memory.h
@@ -29,12 +29,6 @@
#include <asm/sizes.h>
/*
- * Allow for constants defined here to be used from assembly code
- * by prepending the UL suffix only with actual C code compilation.
- */
-#define UL(x) _AC(x, UL)
-
-/*
* Size of the PCI I/O space. This must remain a power of two so that
* IO_SPACE_LIMIT acts as a mask for the low bits of I/O addresses.
*/
diff -puN arch/arm/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth arch/arm/include/asm/memory.h
--- a/arch/arm/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth
+++ a/arch/arm/include/asm/memory.h
@@ -22,12 +22,6 @@
#include <mach/memory.h>
#endif
-/*
- * Allow for constants defined here to be used from assembly code
- * by prepending the UL suffix only with actual C code compilation.
- */
-#define UL(x) _AC(x, UL)
-
/* PAGE_OFFSET - the virtual address of the start of the kernel image */
#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET)
diff -puN arch/unicore32/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth arch/unicore32/include/asm/memory.h
--- a/arch/unicore32/include/asm/memory.h~linux-consth-move-ul-macro-to-include-linux-consth
+++ a/arch/unicore32/include/asm/memory.h
@@ -20,12 +20,6 @@
#include <mach/memory.h>
/*
- * Allow for constants defined here to be used from assembly code
- * by prepending the UL suffix only with actual C code compilation.
- */
-#define UL(x) _AC(x, UL)
-
-/*
* PAGE_OFFSET - the virtual address of the start of the kernel image
* TASK_SIZE - the maximum size of a user space task.
* TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
diff -puN /dev/null include/linux/const.h
--- /dev/null
+++ a/include/linux/const.h
@@ -0,0 +1,9 @@
+#ifndef _LINUX_CONST_H
+#define _LINUX_CONST_H
+
+#include <uapi/linux/const.h>
+
+#define UL(x) (_UL(x))
+#define ULL(x) (_ULL(x))
+
+#endif /* _LINUX_CONST_H */
diff -puN include/uapi/linux/const.h~linux-consth-move-ul-macro-to-include-linux-consth include/uapi/linux/const.h
--- a/include/uapi/linux/const.h~linux-consth-move-ul-macro-to-include-linux-consth
+++ a/include/uapi/linux/const.h
@@ -22,6 +22,9 @@
#define _AT(T,X) ((T)(X))
#endif
+#define _UL(x) (_AC(x, UL))
+#define _ULL(x) (_AC(x, ULL))
+
#define _BITUL(x) (_AC(1,UL) << (x))
#define _BITULL(x) (_AC(1,ULL) << (x))
_
Patches currently in -mm which might be from yamada.masahiro@xxxxxxxxxxxxx are
linux-consth-prefix-include-guard-of-uapi-linux-consth-with-_uapi.patch
m68k-rename-ul-to-to_ul.patch
linux-consth-move-ul-macro-to-include-linux-consth.patch
linux-consth-refactor-_bitul-and-_bitull-a-bit.patch
linux-consth-move-bit_ull-to-linux-consth-for-use-in-assembly.patch
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