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Date: Sat, 17 Feb 2024 17:03:57 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: =?utf-8?Q?Ond=C5=99ej?= Jirman <megi@xff.cz>, linux-usb@vger.kernel.org,
	Guenter Roeck <linux@roeck-us.net>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Revert "usb: typec: tcpm: reset counter when enter into
 unattached state after try role"
Message-ID: <2024021724-festivity-divisible-0b32@gregkh>
References: <20240215193352.1026707-1-megi@xff.cz>
 <2024021739-self-pencil-b932@gregkh>
 <ratkc4fo3mqwuzsbxsiwq54jclnarnjl3x7ts64elx6hguvbay@ihelujsnzd6i>
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In-Reply-To: <ratkc4fo3mqwuzsbxsiwq54jclnarnjl3x7ts64elx6hguvbay@ihelujsnzd6i>

On Sat, Feb 17, 2024 at 04:40:21PM +0100, Ondřej Jirman wrote:
> On Sat, Feb 17, 2024 at 04:32:54PM +0100, Greg Kroah-Hartman wrote:
> > On Thu, Feb 15, 2024 at 08:33:50PM +0100, Ondřej Jirman wrote:
> > > From: Ondrej Jirman <megi@xff.cz>
> > > 
> > > The reverted commit makes the state machine only ever go from SRC_ATTACH_WAIT
> > > to SNK_TRY in endless loop when toggling. After revert it goes to SRC_ATTACHED
> > > after initially trying SNK_TRY earlier, as it should for toggling to ever detect
> > > the power source mode and the port is again able to provide power to attached
> > > power sinks.
> > > 
> > > This reverts commit 2d6d80127006ae3da26b1f21a65eccf957f2d1e5.
> > > ---
> > >  drivers/usb/typec/tcpm/tcpm.c | 3 ---
> > >  1 file changed, 3 deletions(-)
> > > 
> > > See https://lore.kernel.org/all/odggrbbgjpardze76qiv57mw6tllisyu5sbrta37iadjzwamcv@qr3ubwnlzqqt/
> > > for more.
> > > 
> > > diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
> > > index f7d7daa60c8d..295ae7eb912c 100644
> > > --- a/drivers/usb/typec/tcpm/tcpm.c
> > > +++ b/drivers/usb/typec/tcpm/tcpm.c
> > > @@ -3743,9 +3743,6 @@ static void tcpm_detach(struct tcpm_port *port)
> > >  	if (tcpm_port_is_disconnected(port))
> > >  		port->hard_reset_count = 0;
> > >  
> > > -	port->try_src_count = 0;
> > > -	port->try_snk_count = 0;
> > > -
> > >  	if (!port->attached)
> > >  		return;
> > >  
> > > -- 
> > > 2.43.0
> > > 
> > > 
> > 
> > Hi,
> > 
> > This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
> > a patch that has triggered this response.  He used to manually respond
> > to these common problems, but in order to save his sanity (he kept
> > writing the same thing over and over, yet to different people), I was
> > created.  Hopefully you will not take offence and will fix the problem
> > in your patch and resubmit it so that it can be accepted into the Linux
> > kernel tree.
> > 
> > You are receiving this message because of the following common error(s)
> > as indicated below:
> > 
> > - Your patch does not have a Signed-off-by: line.  Please read the
> >   kernel file, Documentation/process/submitting-patches.rst and resend
> >   it after adding that line.  Note, the line needs to be in the body of
> >   the email, before the patch, not at the bottom of the patch or in the
> >   email signature.
> > 
> > 
> > If you wish to discuss this problem further, or you have questions about
> > how to resolve this issue, please feel free to respond to this email and
> > Greg will reply once he has dug out from the pending patches received
> > from other developers.
> 
> It's a mechanically generated revert of upstream patch. It has no authorship.
> I did not write it, machine did. :)
> 
> But I can add a sign off for the commit message I made:
> 
> Signed-of-by: Ondrej Jirman <megi@xff.cz>

You have to do so.

And you need a Fixes: and cc: stable tag too, right?

Please fix up and send a v2 properly.

thanks,

greg k-h