Re: [PATCH v2 0/2] usb/gadget: independent registration of gadgets and gadget

From: Ruslan Bilovol
Date: Tue Feb 17 2015 - 15:24:47 EST

Hi Alan,

On Mon, Feb 16, 2015 at 1:04 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, 16 Feb 2015, Ruslan Bilovol wrote:
>> This patchset adds independent registration of gadgets
>> and gadget drivers to udc-core. This is very useful for
>> built-in modules into kernel case since it's possible
>> situation that gadget driver is probing at a time
>> when no gadgets are registered in udc-core.
>> In this case instead of silently failing without
>> of any attempt to recover, with independent registration
>> of gadgets and gadget drivers there is no matter
>> in which order gadgets and gadget drivers are
>> probed/registered.
>> This patch has side-effect on gadget drivers that had
>> __init/__exit attributes on some paths like bind/unbind
>> and (since bind/unbind may happen at any time) should
>> not use them now. This is covered by second patch
>> (please let me know if I need to break it into separate
>> patches for each gadget driver)
> The two patches should be in the opposite order. Otherwise someone
> might apply the first patch but not the second, and then the gadget
> drivers would crash when their bind/unbind routines were called at the
> wrong time.

Agree, this will be done in v3 patch set.

Best regards,

> Alan Stern
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at