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(parent: 2758f9e) | patch
e1000e: Fix tight loop implementation of systime read algorithm
authorRaanan Avargil <raanan.avargil@intel.com>
Sun, 19 Jul 2015 13:33:20 +0000 (16:33 +0300)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Wed, 5 Aug 2015 23:53:48 +0000 (16:53 -0700)
commit37b12910dd11d9ab969f2c310dc9160b7f3e3405
tree153dfbbf9c83135c0e13fbeba8e62ab093b4d8b8tree | snapshot
parent2758f9edb7bd5a06a2ecee83cc2ebaf8822a0cb5commit | diff
e1000e: Fix tight loop implementation of systime read algorithm

Change the algorithm. Read systimel twice and check for overflow.
If there was no overflow, use the first value.
If there was an overflow, read systimeh again and use the second
systimel value.

Signed-off-by: Raanan Avargil <raanan.avargil@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/e1000e/netdev.c diff | blob | blame | history
Linux kernel - Deliverables
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