Re: [PATCH net 1/2] ipv4: mcast: getsockopt: do not overwrite past optlen

On Tue, Aug 11, 2026 at 06:51:27PM +0100, David Laight wrote:

I would suggest (again) that these changes be done starting with the syscall
'glue' and adding an extra getsockopt_new() to the function call table(s).
Then changing the protocols one by one to provide the new function and
finally deleting the old entry.
That way each protocol code only needs changing once.

Isn't this basically what we're doing today, without a new syscall?

I'd also wrap the copy_to_iter() in an inline function so that most code
doesn't have to care about the implementation.

That sounds doable. What would this inline function look like?
Would you mind sharing what you have in mind?

Thanks for the discussion,
--breno