On Thu, Feb 24, 2022 at 11:46:40AM +0100, Cristiano Giuffrida wrote: > I think the "problem" with this solution is that it doesn't prevent > `tmp` from being used outside the loop still (and people getting it > wrong again)? It would be good to have 'struct gr_request *tmp;' being > visible only inside the loop (i.e., declared in the macro). That is a larger change, one that we can hopefully make when changing to introduce the temp variable in the loop_for_each() macro as Linus described elsewhere in the thread. But for now, it should be pretty obvious to not touch tmp again after the loop is done. That should make it easier to check for stuff like this as well in an automated fashion (i.e. the loop variable is only touched inside the loop.) thanks, greg k-h