diff options
| author | Olof Johansson <olof@lixom.net> | 2012-09-16 19:24:53 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-16 19:24:53 -0700 |
| commit | d1226e8f98f130918265fb5b4dddcb60b783eb34 (patch) | |
| tree | 5272a7828311a9b336d15c005704cf27b083d41c /include/linux/kernel.h | |
| parent | cccc277ba840f32d252a785ab1df686fdc0f49f5 (diff) | |
| parent | 47d85ec2a23552fd3d8b56778a23a5a843c5b9b1 (diff) | |
Merge tag 'devel-omap-device-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc
Kevin Hilman <khilman@ti.com>:
Updates for omap_device layer for v3.7.
Allows omap_device layer to keep track of driver bound status in order
to make more intelligent decisions about idling unused devices.
* tag 'devel-omap-device-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: omap_device: idle devices with no driver bound
ARM: OMAP: omap_device: don't attempt late suspend if no driver bound
ARM: OMAP: omap_device: keep track of driver bound status
+ sync to 3.6-rc5
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 604382143bcf..594b419b7d20 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)); \ } \ ) |