Re: [PATCH/RFC 1/5] sh_eth: Use the platform device for memory allocation

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

On Thursday 20 March 2014 14:42:30 Laurent Pinchart wrote:
> On Wednesday 19 March 2014 20:19:51 Sergei Shtylyov wrote:
> > On 03/19/2014 02:25 AM, Laurent Pinchart wrote:
> > > Memory allocated for the MDIO bus with the devm_kzalloc() API is
> > > associated with the network device. While this will cause memory to be
> > > freed at the right time, it doesn't allow allocating memory before the
> > > network device is initialized.
> > > 
> > > Replace the network device with the parent platform device for memory
> > > allocation to remove that dependency. This also improves consistency
> > > with the other devm_* calls in the driver that all use the platform
> > > device.
> > > 
> > > Signed-off-by: Laurent Pinchart
> > > <laurent.pinchart+renesas@ideasonboard.com>
> > > ---
> > > 
> > >   drivers/net/ethernet/renesas/sh_eth.c | 7 +++----
> > >   1 file changed, 3 insertions(+), 4 deletions(-)
> > > 
> > > diff --git a/drivers/net/ethernet/renesas/sh_eth.c
> > > b/drivers/net/ethernet/renesas/sh_eth.c index be7211d..b80abb6 100644
> > > --- a/drivers/net/ethernet/renesas/sh_eth.c
> > > +++ b/drivers/net/ethernet/renesas/sh_eth.c
> > > @@ -2615,10 +2615,10 @@ static int sh_mdio_init(struct net_device *ndev,
> > > int id,>
> > > 
> > >   	int ret, i;
> > >   	struct bb_info *bitbang;
> > >   	struct sh_eth_private *mdp = netdev_priv(ndev);
> > 
> > I'd suggest to also declare:
> > 	struct platform_device *pdev = &mdp->pdev;
> > 
> > so that you could simplify 'mdev->pdev->name' derefs in the sprintf() call
> > and to get rid of the 'id' parameter to sh_mdio_init() by using 'pdev->id'
> > directly in the same call.
> 
> Good idea. I'll do that in patch 2/5 for v2.

I meant 3/5, sorry.

-- 
Regards,

Laurent Pinchart