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| author | Bjørn Mork <bjorn@mork.no> | 2014-05-30 09:31:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-06-03 01:01:30 +0200 |
| commit | f42763dbdf043c9996dfabf6d167eab28e016eb8 (patch) | |
| tree | 87ac340cfb756e9b725f18f2d7b99be3414e68fd /drivers/char/tlclk.c | |
| parent | net: cdc_ncm: always reallocate tx_curr_skb when tx_max increases (diff) | |
| download | linux-f42763dbdf043c9996dfabf6d167eab28e016eb8.tar.xz linux-f42763dbdf043c9996dfabf6d167eab28e016eb8.zip | |
net: cdc_ncm: inform usbnet when rx buffers are reduced
It doesn't matter whether the buffer size goes up or down. We have to
keep usbnet and device syncronized to be able to split transfers at the
correct boundaries. The spec allow skipping short packets when using
max sized transfers. If we don't tell usbnet about our new expected rx
buffer size, then it will merge and/or split NTBs. The driver does not
support this, and the result will be lots of framing errors.
Fix by always reallocating usbnet rx buffers when the rx_max value
changes.
Fixes: 68864abf08f0 ("net: cdc_ncm: support rx_max/tx_max updates when running")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/char/tlclk.c')
0 files changed, 0 insertions, 0 deletions