Re: [PATCH] ravb: implement MTU change while device is up

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> On May 8, 2019 at 6:52 PM Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx> wrote:
> 
> 
> Hi Sergei,
> 
> On 2019-05-08 18:59:01 +0300, Sergei Shtylyov wrote:
> > Hello!
> > 
> > On 05/08/2019 06:21 PM, Ulrich Hecht wrote:
> > 
> > > Uses the same method as various other drivers: shut the device down,
> > > change the MTU, then bring it back up again.
> > > 
> > > Tested on Renesas D3 Draak board.
> > > 
> > > Signed-off-by: Ulrich Hecht <uli+renesas@xxxxxxxx>
> > 
> >    You should have CC'ed me (as an reviewer for the Renesas drivers).

Sorry, will do next time.

> > 
> >    How about the code below instead?
> > 
> > 	if (netif_running(ndev))
> > 		ravb_close(ndev);
> > 
> >  	ndev->mtu = new_mtu;
> > 	netdev_update_features(ndev);
> 
> Is there a need to call netdev_update_features() even if the if is not 
> running?

In my testing, it didn't seem so.

CU
Uli




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