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bbcb2b9074
Allow drivers to define custom bulk in/out buffer sizes in struct usb_serial_driver. If not set, fall back to the default buffer size which matches the endpoint size. Three drivers are currently freeing the pre-allocated buffers and allocating larger ones to achieve this at port probe (ftdi_sio) or even at port open (ipaq and iuu_phoenix), which needless to say is suboptimal. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>