Re: [RFC][PATCH v2 05/13] usb: otg: add OTG core

From: Paul Bolle
Date: Wed Apr 15 2015 - 05:29:24 EST

(This will go into a minor detail. That's probably not what you want
when posting an RFC. But this patch got caught by an email filter I use
and a future, non-RFC, version will get caught too. So I decided to
bother you with this now.)

On Tue, 2015-04-14 at 13:41 +0300, Roger Quadros wrote:
> --- a/drivers/usb/common/Makefile
> +++ b/drivers/usb/common/Makefile

> +obj-$(CONFIG_USB_OTG_CORE) += usb-otg.o

This creates a module usb-otg.ko if CONFIG_USB_OTG_CORE is 'm', built
from just usb-otg.c.

> --- /dev/null
> +++ b/drivers/usb/common/usb-otg.c

> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * GNU General Public License for more details.

> +EXPORT_SYMBOL_GPL(usb_otg_register);

> +EXPORT_SYMBOL_GPL(usb_otg_unregister);

> +EXPORT_SYMBOL_GPL(usb_otg_sync_inputs);

> +EXPORT_SYMBOL_GPL(usb_otg_kick_fsm);

> +EXPORT_SYMBOL_GPL(usb_otg_register_hcd);

> +EXPORT_SYMBOL_GPL(usb_otg_unregister_hcd);

> +EXPORT_SYMBOL_GPL(usb_otg_register_gadget);

> +EXPORT_SYMBOL_GPL(usb_otg_unregister_gadget);

> +EXPORT_SYMBOL_GPL(usb_otg_fsm_to_dev);

This code adds no MODULE_LICENSE() macro in this patch and usb-otg.ko
will carry no license field. So I think the loading of that module
(triggered by loading another module that uses one of the exported
symbols, I suppose) taints the kernel. Am I correct?

Paul Bolle

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