[PATCH net-next v4 0/2] adjust MTU as indicated by MBIM extended functional descriptor

[Ben Chan]

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
    BjÃrn Mork <bjorn@xxxxxxx>
v3: No code changes. Resubmitted to include patch 1/2 as suggested by
    David Miller <davem@xxxxxxxxxxxxx>
v4: No code changes. Resubmitted as suggested by David Miller:
    - Added a summary of the patch set
    - Carried the ACK from Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    - 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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