The MBIM extended functional descriptor, defined in "Universal Serial Bus
Communications Class Subclass Specification for Mobile Broadband Interface
Model, Revision 1.0, Errata-1" by USB-IF, indicates the operator preferred MTU
value via a wMTU field.
This patch set ensures that the initial MTU value set by cdc_ncm on a MBIM net
device does not exceed the wMTU value, provided the MBIM device exposes a MBIM
extended functional descriptor.
* Changelog
v2: Fixed a le16_to_cpu conversion issue in patch 2/2 pointed out by
Bjørn Mork <bj...@mork.no>
v3: No code changes. Resubmitted to include patch 1/2 as suggested by
David Miller <da...@davemloft.net>
v4: No code changes. Resubmitted as suggested by David Miller:
- Added a summary of the patch set
- Carried the ACK from Greg Kroah-Hartman <gre...@linuxfoundation.org>
- Added a specified the tree (net-next) to apply the patch set to
Ben Chan (2):
USB: cdc: add MBIM extended functional descriptor structure
net: cdc_ncm: respect operator preferred MTU reported by MBIM
drivers/net/usb/cdc_ncm.c | 17 +++++++++++++++++
include/linux/usb/cdc_ncm.h | 1 +
include/uapi/linux/usb/cdc.h | 12 ++++++++++++
3 files changed, 30 insertions(+)
--
1.9.0.279.gdc9e3eb
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