diff options
| author | Stephan Gerhold <[email protected]> | 2025-02-12 11:15:35 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-02-14 21:39:55 +0000 |
| commit | 0d1fac6d26aff5df21bb4ec980d9b7a11c410b96 (patch) | |
| tree | 92592a5c74b7d292e7936f3ce7a121bf5209bb6f /tools/testing/selftests/bpf/prog_tests/sockmap_basic.c | |
| parent | gve: Update MAINTAINERS (diff) | |
| download | kernel-0d1fac6d26aff5df21bb4ec980d9b7a11c410b96.tar.gz kernel-0d1fac6d26aff5df21bb4ec980d9b7a11c410b96.zip | |
net: wwan: mhi_wwan_mbim: Silence sequence number glitch errors
When using the Qualcomm X55 modem on the ThinkPad X13s, the kernel log is
constantly being filled with errors related to a "sequence number glitch",
e.g.:
[ 1903.284538] sequence number glitch prev=16 curr=0
[ 1913.812205] sequence number glitch prev=50 curr=0
[ 1923.698219] sequence number glitch prev=142 curr=0
[ 2029.248276] sequence number glitch prev=1555 curr=0
[ 2046.333059] sequence number glitch prev=70 curr=0
[ 2076.520067] sequence number glitch prev=272 curr=0
[ 2158.704202] sequence number glitch prev=2655 curr=0
[ 2218.530776] sequence number glitch prev=2349 curr=0
[ 2225.579092] sequence number glitch prev=6 curr=0
Internet connectivity is working fine, so this error seems harmless. It
looks like modem does not preserve the sequence number when entering low
power state; the amount of errors depends on how actively the modem is
being used.
A similar issue has also been seen on USB-based MBIM modems [1]. However,
in cdc_ncm.c the "sequence number glitch" message is a debug message
instead of an error. Apply the same to the mhi_wwan_mbim.c driver to
silence these errors when using the modem.
[1]: https://lists.freedesktop.org/archives/libmbim-devel/2016-November/000781.html
Signed-off-by: Stephan Gerhold <[email protected]>
Reviewed-by: Loic Poulain <[email protected]>
Acked-by: Manivannan Sadhasivam <[email protected]>
Link: https://patch.msgid.link/20250212-mhi-wwan-mbim-sequence-glitch-v1-1-503735977cbd@linaro.org
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/sockmap_basic.c')
0 files changed, 0 insertions, 0 deletions
