linux-kernel - Re: [PATCH v1 16/18] efi: Update implementation of add

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Message-ID: <20201106064503.GB697514@kroah.com>
Date:   Fri, 6 Nov 2020 07:45:03 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, Ard Biesheuvel <ardb@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Marc Zyngier <maz@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Android Kernel Team <kernel-team@...roid.com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-efi <linux-efi@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v1 16/18] efi: Update implementation of add_links() to
 create fwnode links

On Thu, Nov 05, 2020 at 03:27:52PM -0800, Saravana Kannan wrote:
> On Thu, Nov 5, 2020 at 1:42 AM Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > On Wed, Nov 04, 2020 at 03:23:53PM -0800, Saravana Kannan wrote:
> > > The semantics of add_links() has changed from creating device link
> > > between devices to creating fwnode links between fwnodes. So, update the
> > > implementation of add_links() to match the new semantics.
> > >
> > > Signed-off-by: Saravana Kannan <saravanak@...gle.com>
> > > ---
> > >  drivers/firmware/efi/efi-init.c | 23 ++---------------------
> > >  1 file changed, 2 insertions(+), 21 deletions(-)
> > >
> > > diff --git a/drivers/firmware/efi/efi-init.c b/drivers/firmware/efi/efi-init.c
> > > index b148f1459fb3..c0c3d4c3837a 100644
> > > --- a/drivers/firmware/efi/efi-init.c
> > > +++ b/drivers/firmware/efi/efi-init.c
> > > @@ -316,11 +316,10 @@ static struct device_node *find_pci_overlap_node(void)
> > >   * resource reservation conflict on the memory window that the efifb
> > >   * framebuffer steals from the PCIe host bridge.
> > >   */
> > > -static int efifb_add_links(const struct fwnode_handle *fwnode,
> > > +static int efifb_add_links(struct fwnode_handle *fwnode,
> > >                          struct device *dev)
> >
> > So you are fixing the build warning you added a few patches ago here?
> > Please fix up the function signatures when you made that change, not
> > here later on.
> 
> I'm trying not to have a mega patcht that changes a lot of code.
> 
> I guess I can drop this "const" diff from this patch and then merge it
> with the earlier patch that removes the const. But still leave the
> rest of the changes in this patch as is. Does that work for you?

Yes, that's fine, you just can't add build warnings along the way.

thanks,

greg k-h