netdev - Re: [Intel-wired-lan] [PATCH net-next v2 3/3] ice: remove unnecessary check for old MAC == new MAC

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Date: Tue, 13 Jun 2023 17:10:50 +0200
From: Przemek Kitszel <przemyslaw.kitszel@...el.com>
To: Piotr Gardocki <piotrx.gardocki@...el.com>, <netdev@...r.kernel.org>
CC: <pmenzel@...gen.mpg.de>, <simon.horman@...igine.com>,
	<anthony.l.nguyen@...el.com>, <kuba@...nel.org>,
	<intel-wired-lan@...ts.osuosl.org>
Subject: Re: [Intel-wired-lan] [PATCH net-next v2 3/3] ice: remove unnecessary
 check for old MAC == new MAC

On 6/13/23 16:02, Przemek Kitszel wrote:
> On 6/13/23 14:24, Piotr Gardocki wrote:
>> The check has been moved to core. The ndo_set_mac_address callback
>> is not being called with new MAC address equal to the old one anymore.
>>
>> Signed-off-by: Piotr Gardocki <piotrx.gardocki@...el.com>
>> ---
>>   drivers/net/ethernet/intel/ice/ice_main.c | 5 -----

[...]
> 
> I would expect one patch that adds check in the core, then one patch 
> that removes it in all, incl non-intel, drivers; with CC to their 
> respective maintainers (like Tony for intel, ./scripts/get_maintainer.pl 
> will help)

I have checked, it's almost 200 handlers, which amounts to over 3500 
lines of code (short-cutting analysis on eth_hw_addr_set()), what 
probably could warrant more than one patch/person to spread the work

anybody willing to see the above code-to-look-at, or wants to re-run it 
for their directory of interests, here is dirty bash script (which just 
approximates what's to be done, but rather closely to reality):

  grep -InrE '\.'ndo_set_mac_address'\s+=' |
  awk '!/NULL/ {gsub(/,$/, ""); print $NF}' |
  sort -u |
  xargs -I% bash -c 'grep -ERwIl %'"'"'\(struct net_device.+\)$'"'"' |
    xargs -I @  awk '"'"'/%\(struct net_device.+\)$/, 
/^}|eth_hw_addr_set\(/ { print  "@:" NR $0 }'"'"' @' |
cat -n

@Piotr, perhaps resolve all intel drivers in your series?