android_kernel_samsung_sm8650/drivers/infiniband
Arnd Bergmann f8109d9e7d infiniband: cxgb4: use ktime_get for timestamps
The debugfs file prints the difference between host timestamps as a
seconds/nanoseconds tuple, along with a 64-bit nanoseconds hardware
timestamp. The host time is read using getnstimeofday() which is
deprecated because of the y2038 overflow, and it suffers from time jumps
during settimeofday() and leap seconds.

Converting to ktime_get_ts64() would solve those two, but I'm going
a little further here by changing to ktime_get() and printing 64-bit
nanoseconds on both host and hw timestamps.  This simplifies the code
further and makes the output easier to understand.

The format of the debugfs file obviously changes here, but this should
only be read by humans and not scripts, so I assume it's fine.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-13 11:00:13 -07:00
..
core RDMA/iwpm: Fix uninitialized error code in iwpm_send_mapinfo() 2017-12-13 10:55:49 -07:00
hw infiniband: cxgb4: use ktime_get for timestamps 2017-12-13 11:00:13 -07:00
sw Merge branch 'akpm' (patches from Andrew) 2017-11-15 19:42:40 -08:00
ulp IB/ipoib: Warn when one port fails to initialize 2017-12-13 10:55:49 -07:00
Kconfig infiniband: add MMU dependency for user_mem 2017-10-10 10:49:44 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00