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| author | Frank Jungclaus <frank.jungclaus@esd.eu> | 2022-11-30 21:22:42 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-14 11:32:05 +0100 |
| commit | 4fd6f84e0a0c432d1acc56b7ae76e7676587081d (patch) | |
| tree | faefe7e4fd65b47a182deb6246b587c6c0c032f4 /scripts | |
| parent | cf0e42310648a23188a411f7287dd95599086fce (diff) | |
| download | linux-4fd6f84e0a0c432d1acc56b7ae76e7676587081d.tar.gz linux-4fd6f84e0a0c432d1acc56b7ae76e7676587081d.tar.bz2 linux-4fd6f84e0a0c432d1acc56b7ae76e7676587081d.zip | |
can: esd_usb: Allow REC and TEC to return to zero
[ Upstream commit 918ee4911f7a41fb4505dff877c1d7f9f64eb43e ]
We don't get any further EVENT from an esd CAN USB device for changes
on REC or TEC while those counters converge to 0 (with ecc == 0). So
when handling the "Back to Error Active"-event force txerr = rxerr =
0, otherwise the berr-counters might stay on values like 95 forever.
Also, to make life easier during the ongoing development a
netdev_dbg() has been introduced to allow dumping error events send by
an esd CAN USB device.
Fixes: 96d8e90382dc ("can: Add driver for esd CAN-USB/2 device")
Signed-off-by: Frank Jungclaus <frank.jungclaus@esd.eu>
Link: https://lore.kernel.org/all/20221130202242.3998219-2-frank.jungclaus@esd.eu
Cc: stable@vger.kernel.org
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions