From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: barebox@lists.infradead.org
Subject: [PATCH 2/3] add roundup and rounddown support
Date: Sat, 3 Nov 2012 21:58:29 +0100 [thread overview]
Message-ID: <1351976310-9312-2-git-send-email-plagnioj@jcrosoft.com> (raw)
In-Reply-To: <1351976310-9312-1-git-send-email-plagnioj@jcrosoft.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
include/linux/kernel.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e9e2f07..92c3391 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -90,5 +90,20 @@
__val = __val < __min ? __min: __val; \
__val > __max ? __max: __val; })
+
+/* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */
+#define roundup(x, y) ( \
+{ \
+ const typeof(y) __y = y; \
+ (((x) + (__y - 1)) / __y) * __y; \
+} \
+)
+#define rounddown(x, y) ( \
+{ \
+ typeof(x) __x = (x); \
+ __x - (__x % (y)); \
+} \
+)
+
#endif /* _LINUX_KERNEL_H */
--
1.7.10.4
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next prev parent reply other threads:[~2012-11-03 21:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-03 20:56 [PATCH 0/3] i2c: add at24 eeprom support Jean-Christophe PLAGNIOL-VILLARD
2012-11-03 20:58 ` [PATCH 1/3] import log2 support from linux Jean-Christophe PLAGNIOL-VILLARD
2012-11-03 20:58 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2012-11-03 20:58 ` [PATCH 3/3] eeprom: add at24 support Jean-Christophe PLAGNIOL-VILLARD
2012-11-12 7:38 ` [PATCH 0/3] i2c: add at24 eeprom support Sascha Hauer
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