linux-kernel - Re: [PATCH v6 0/4] LED triggers for USB host and device

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Date:	Thu, 25 Sep 2014 16:56:49 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Felipe Balbi <balbi@...com>
Cc:	Michal Sojka <sojka@...ica.cz>, linux-usb@...r.kernel.org,
	Alan Stern <stern@...land.harvard.edu>,
	Bryan Wu <cooloney@...il.com>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	linux-kernel@...r.kernel.org, michal.vokac@...ap.cz
Subject: Re: [PATCH v6 0/4] LED triggers for USB host and device

On Thu, Sep 25, 2014 at 08:56:32AM -0500, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Sep 25, 2014 at 12:36:23PM +0200, Greg Kroah-Hartman wrote:
> > On Wed, Sep 24, 2014 at 06:15:50PM -0500, Felipe Balbi wrote:
> > > On Wed, Sep 24, 2014 at 05:18:30PM -0500, Felipe Balbi wrote:
> > > > On Wed, Sep 24, 2014 at 11:41:55PM +0200, Greg Kroah-Hartman wrote:
> > > > > On Wed, Sep 24, 2014 at 03:59:36PM -0500, Felipe Balbi wrote:
> > > > > > On Wed, Sep 24, 2014 at 10:43:17PM +0200, Michal Sojka wrote:
> > > > > > > This adds LED triggers for USB host and device. First two patches
> > > > > > > refactor UDC drivers as requested by Felipe Balbi, the next renames a
> > > > > > > file and the last is the actual implementation of the LED triggers.
> > > > > > > 
> > > > > > > Changes from v5:
> > > > > > > - Refactoring of USB gadget completion split into two patches (Filipe
> > > > > > >   Balbi)
> > > > > > > - Removed check for non-NULL req->completion (Filipe Balbi)
> > > > > > > 
> > > > > > > Changes from v4:
> > > > > > > - Added performance numbers to the commit message of the last patch
> > > > > > >   (greg k-h).
> > > > > > > - Replaced BUG_ON with pr_err (Alan Stern, greg k-h).
> > > > > > > - Used proper coding style for switch statement (greg k-h).
> > > > > > > - Added comment about NULL argument (greg k-h).
> > > > > > > - EXPORT_SYMBOL changed to EXPORT_SYMBOL_GPL (greg k-h).
> > > > > > > - Both triggers are now registerd even if host or gagdet subsystem
> > > > > > >   is not enabled (Bryan Wu, greg k-h).
> > > > > > > 
> > > > > > > Changes from v3:
> > > > > > > - usb_gadget_giveback_request() moved outside of CONFIG_HAS_DMA
> > > > > > >   conditioned block.
> > > > > > > - Added kernel-doc for usb_gadget_giveback_request() (Felipe Balbi).
> > > > > > > - Removed outdated comment (Alan Stern).
> > > > > > > - req->complete == NULL is now a bug. Previously, this was ignored
> > > > > > >   (Alan Stern).
> > > > > > > - File rename moved to a separate commit (greg k-h).
> > > > > > > 
> > > > > > > Changes from v2:
> > > > > > > - Host/gadget triggers merged to a single file in usb/common/ (Felipe
> > > > > > >   Balbi).
> > > > > > > - UDC drivers refactored so that LED trigger works for all of them.
> > > > > > > 
> > > > > > > Changes from v1:
> > > > > > > - Moved from drivers/leds/ to drivers/usb/.
> > > > > > > - Improved Kconfig help.
> > > > > > > - Linked with other modules rather than being standalone modules.
> > > > > > > 
> > > > > > > Michal Sojka (4):
> > > > > > >   usb: gadget: Introduce usb_gadget_giveback_request()
> > > > > > >   usb: gadget: Refactor request completion
> > > > > > >   usb: Rename usb-common.c
> > > > > > >   usb: Add LED triggers for USB activity
> > > > > > 
> > > > > > Greg, how do you want to handle this one as it touched both host and
> > > > > > gadget ? I could wait until you apply this series to your usb-next and
> > > > > > based my pull request on that. That'll work as long as it doesn't take
> > > > > > too long for this to be merged.
> > > > > 
> > > > > I can just take this now, for 3.18-rc1, you've already sent me your
> > > > > patches for that release, so there shouldn't be any conflicts, right?
> > > > 
> > > > that's better. Can you wait 1 day though ? I can run these through my
> > > > build tests.
> > > 
> > > running my build tests on top of v3.17-rc6 + these 4 patches. I'll
> > > report back tomorrow. From a code perspective, though, they look
> > > alright.
> > 
> > Yes, will wait, thanks.
> 
> nothing interesting on my build tests. I have also tested the series
> with my AM437x SK and I can see LED blinking with usb-gadget and
> usb-host triggers.
> 
> For the whole series:
> 
> Tested-by: Felipe Balbi <balbi@...com>

Thanks for testing and letting me know, will queue it up now.

greg k-h
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