Re: [PATCH] Change judgment len position

From: Joe Perches
Date: Wed Oct 24 2018 - 14:28:17 EST


On Wed, 2018-10-24 at 10:10 -0700, David Miller wrote:
> From: Wang Hai <wanghaifine@xxxxxxxxx>
> Date: Wed, 24 Oct 2018 23:47:29 +0800
>
> > To determine whether len is less than zero, it should be put before
> > the function min_t, because the return value of min_t is not likely
> > to be less than zero.
[]
> > diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
[]
> > @@ -3301,11 +3301,11 @@ static int do_tcp_getsockopt(struct sock *sk, int level,
> > struct net *net = sock_net(sk);
> > int val, len;
> >
> > + len = min_t(unsigned int, len, sizeof(int));
> > +
> > if (get_user(len, optlen))
> > return -EFAULT;
>
> You can't be serious?

I'm not personally taken aback by this but
there is the new Code of
Conduct to consider.

John McEnroe earned quite a bit of his
reputation as an 'enfant terrible' via a
similar statement.

https://www.youtube.com/watch?v=t0hK1wyrrAU

Perhaps a different word choice next time in
reply to submitters of ill-considered and/or
defective patches could be useful.