The driver maintains elapsed times by repeatedly accumulating the time
since the previous update in a loop. For the elapsed showtime time, the
time difference is truncated to seconds before adding it, leading to a
sizable error over time.
Move the truncation to before calculation of the time difference in
order to remove this error. Also maintain the total elapsed time in the
same way in full seconds, to prevent the unsigned 32-bit counter from
wrapping around after about 50 days.
Testing on a VR9 device shows that the reported line uptime now matches
the actual elapsed wall time. The ADSL variant is only compile-tested,
but it should also work as the relevant code is identical.
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
(cherry picked from commit db4bf4b968)
Upstream commit e4b92b108c6cd6 ("timekeeping: remove obsolete time
accessors") removed do_gettimeofday(). In Linux 4.19 this was only a
wrapper around ktime_get_real_ts64(). Use ktime_get_real_ts64() now that
the wrapper is gone to fix compilation against Linux 5.4.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Do not leak the user space CFLAGS into the kernel space any more, this
allows us to activate the MIPS16 build.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This is fixing multiple compile problems with kernel 4.14 and updates the
code to take care of changes introduced between kernel 4.9 and 4.14.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Mathias Kresin <dev@kresin.me>
This is a backport form drv_dsl_cpe_api-4.18.10 and fixes some PM
thread handling issues which lead to high system load and watchdog
trigger within 1h of uptime for boards not connected to a xdsl line.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
In addition to the update this also fixes some build warnings and makes it
use the same configure option as used in Lantiq UGW.
Signed-off-by: Hauke Mehrtens <hauke.mehrtens@lantiq.com>
SVN-Revision: 47635
Thanks to Sylwester Petela for testing my patch (successfully on an
ADSL connection) and for pointing out some configuration mistakes.
Others (including me) have also successfully tested this extensively
on VDSL connections.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
SVN-Revision: 46920
