Subject: + kernelh-define-u8-s8-u32-etc-limits.patch added to -mm tree
To: alex.elder@xxxxxxxxxx,davem@xxxxxxxxxxxxx,elder@xxxxxxxxxx,sage@xxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Thu, 26 Dec 2013 14:34:46 -0800
The patch titled
Subject: kernel.h: define u8, s8, u32, etc. limits
has been added to the -mm tree. Its filename is
kernelh-define-u8-s8-u32-etc-limits.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernelh-define-u8-s8-u32-etc-limits.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernelh-define-u8-s8-u32-etc-limits.patch
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------------------------------------------------------
From: Alex Elder <alex.elder@xxxxxxxxxx>
Subject: kernel.h: define u8, s8, u32, etc. limits
Create constants that define the maximum and minimum values
representable by the kernel types u8, s8, u16, s16, and so on.
Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
Cc: Sage Weil <sage@xxxxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/kernel.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff -puN include/linux/kernel.h~kernelh-define-u8-s8-u32-etc-limits include/linux/kernel.h
--- a/include/linux/kernel.h~kernelh-define-u8-s8-u32-etc-limits
+++ a/include/linux/kernel.h
@@ -29,6 +29,19 @@
#define ULLONG_MAX (~0ULL)
#define SIZE_MAX (~(size_t)0)
+#define U8_MAX ((u8)~0U)
+#define S8_MAX ((s8)(U8_MAX>>1))
+#define S8_MIN ((s8)(-S8_MAX - 1))
+#define U16_MAX ((u16)~0U)
+#define S16_MAX ((s16)(U16_MAX>>1))
+#define S16_MIN ((s16)(-S16_MAX - 1))
+#define U32_MAX ((u32)~0U)
+#define S32_MAX ((s32)(U32_MAX>>1))
+#define S32_MIN ((s32)(-S32_MAX - 1))
+#define U64_MAX ((u64)~0ULL)
+#define S64_MAX ((s64)(U64_MAX>>1))
+#define S64_MIN ((s64)(-S64_MAX - 1))
+
#define STACK_MAGIC 0xdeadbeef
#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x))
_
Patches currently in -mm which might be from alex.elder@xxxxxxxxxx are
conditionally-define-u32_max.patch
kernelh-define-u8-s8-u32-etc-limits.patch
remove-extra-definitions-of-u32_max.patch
linux-next.patch
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