summaryrefslogtreecommitdiffstats
path: root/include/linux/kernel.h
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-16 20:42:46 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-09-16 20:42:46 -0700
commit2bcb132c693566bcb8208cc7ce66b72a4f852ecf (patch)
tree6fc4f05ce18140d86aa78a10380a610734aeaef9 /include/linux/kernel.h
parent67e6da702753dac8f0540209dded80a0c4e60d81 (diff)
parent5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff)
Merge 3.6-rc6 into usb-next
This resolves the merge problems with: drivers/usb/dwc3/gadget.c drivers/usb/musb/tusb6010.c that had been seen in linux-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r--include/linux/kernel.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 604382143bc..594b419b7d2 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -82,10 +82,18 @@
__x - (__x % (y)); \
} \
)
+
+/*
+ * Divide positive or negative dividend by positive divisor and round
+ * to closest integer. Result is undefined for negative divisors.
+ */
#define DIV_ROUND_CLOSEST(x, divisor)( \
{ \
- typeof(divisor) __divisor = divisor; \
- (((x) + ((__divisor) / 2)) / (__divisor)); \
+ typeof(x) __x = x; \
+ typeof(divisor) __d = divisor; \
+ (((typeof(x))-1) >= 0 || (__x) >= 0) ? \
+ (((__x) + ((__d) / 2)) / (__d)) : \
+ (((__x) - ((__d) / 2)) / (__d)); \
} \
)