Re: [PATCH net-next 03/11] ethernet: use eth_hw_addr_set()

[Jakub Kicinski <kuba@kernel.org>]

On Sat, 2 Oct 2021 19:32:53 +0300 Ido Schimmel wrote:
> On Fri, Oct 01, 2021 at 02:32:20PM -0700, Jakub Kicinski wrote:
> > Convert all Ethernet drivers from memcpy(... ETH_ADDR)
> > to eth_hw_addr_set():
> > 
> >   @@
> >   expression dev, np;
> >   @@
> >   - memcpy(dev->dev_addr, np, ETH_ALEN)
> >   + eth_hw_addr_set(dev, np)  
> 
> Some use:
> 
> memcpy(dev->dev_addr, np, dev->addr_len)
> 
> Not sure if you missed it or if it's going to be in part 2. I assume the
> latter, but thought I would ask.

Yup, still

 417 files changed, 1239 insertions(+), 960 deletions(-)

to go. I thought I'd start upstreaming from the most obvious /
mechanical changes.

For the memcpy(..., dev->addr_len) I'm thinking of using
eth_hw_addr_set() in appropriate sections of the tree (drivers/ethernet,
driver/wireless) and convert the rest to this helper:

static inline void dev_addr_set(struct net_device *dev, const u8 *addr)
{
	memcpy(dev->dev_addr, addr, dev->addr_len);
}

dev_addr_set() everywhere would be more obviously correct, but using
eth_hw_addr_set() seems cleaner for Ethernet drivers. Second opinion
on this would be good if you have a preference.