The patch titled
ibmaem: Fix 64-bit division on 32-bit platforms
has been added to the -mm tree. Its filename is
ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware-fix-64-bit-division-on-32-bit-platforms.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: ibmaem: Fix 64-bit division on 32-bit platforms
From: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/hwmon/ibmaem.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff -puN drivers/hwmon/ibmaem.c~ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware-fix-64-bit-division-on-32-bit-platforms drivers/hwmon/ibmaem.c
--- a/drivers/hwmon/ibmaem.c~ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware-fix-64-bit-division-on-32-bit-platforms
+++ a/drivers/hwmon/ibmaem.c
@@ -31,6 +31,7 @@
#include <linux/idr.h>
#include <linux/sched.h>
#include <linux/platform_device.h>
+#include <linux/math64.h>
#define REFRESH_INTERVAL (HZ)
#define IPMI_TIMEOUT (30 * HZ)
@@ -864,9 +865,10 @@ static ssize_t aem_show_power(struct dev
mutex_unlock(&data->lock);
time = timespec_to_ns(&a) - timespec_to_ns(&b);
- time /= 1000;
+ time = div_u64(time, 1000);
- return sprintf(buf, "%llu\n", (after - before) * 1000000000 / time);
+ return sprintf(buf, "%llu\n",
+ div64_u64((after - before) * 1000000000, time));
}
/* Display energy use */
_
Patches currently in -mm which might be from djwong@xxxxxxxxxx are
adt7473-minor-documentation-update.patch
i5k_amb-support-intel-5400-chipset.patch
ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware.patch
ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware-fix-64-bit-division-on-32-bit-platforms.patch
ibmaem-new-driver-for-power-energy-temp-meters-in-ibm-system-x-hardware-fix.patch
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