tree bcb04f4d191a444798af2e2847e3096e8a31ce4e
parent c662a31be755f5e315945e2c802c335eb8baddb8
author Michal Nazarewicz <mina86@mina86.com> 1463856455 +0200
committer Felipe Balbi <felipe.balbi@linux.intel.com> 1466496691 +0300

usb: gadget: f_fs: buffer data from ‘oversized’ OUT requests

f_fs rounds up read(2) requests to a multiple of a max packet size
which means that host may provide more data than user has space for.
So far, the excess data has been silently ignored.

This introduces a buffer for a tail of such requests so that they are
returned on next read instead of being ignored.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>