USB: usb_debug: use the generic kfifo-based write implementation
Use the generic kfifo-based write implementation rather than allowing up to 4000 8 byte urbs in the host stack queues. Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: NJohan Hovold <jhovold@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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