From: Alexander Bluhm <bluhm@openbsd.org>
Subject: Re: dead code tells no tales, 7/16
To: Miod Vallat <miod@online.fr>
Cc: tech@openbsd.org
Date: Mon, 21 Sep 2026 20:43:25 +0200

On Sun, Sep 20, 2026 at 09:07:01PM +0000, Miod Vallat wrote:
> This routine does not seem to be used anymore.

OK bluhm@

> Index: sys/kern/uipc_mbuf.c
> ===================================================================
> RCS file: /OpenBSD/src/sys/kern/uipc_mbuf.c,v
> diff -u -p -u -p -r1.307 uipc_mbuf.c
> --- sys/kern/uipc_mbuf.c	3 Jul 2026 11:51:57 -0000	1.307
> +++ sys/kern/uipc_mbuf.c	20 Sep 2026 16:47:44 -0000
> @@ -1731,18 +1731,6 @@ ml_dequeue(struct mbuf_list *ml)
>  	return (m);
>  }
>  
> -struct mbuf *
> -ml_dechain(struct mbuf_list *ml)
> -{
> -	struct mbuf *m0;
> -
> -	m0 = ml->ml_head;
> -
> -	ml_init(ml);
> -
> -	return (m0);
> -}
> -
>  unsigned int
>  ml_purge(struct mbuf_list *ml)
>  {
> Index: sys/sys/mbuf.h
> ===================================================================
> RCS file: /OpenBSD/src/sys/sys/mbuf.h,v
> diff -u -p -u -p -r1.271 mbuf.h
> --- sys/sys/mbuf.h	3 Jul 2026 11:51:57 -0000	1.271
> +++ sys/sys/mbuf.h	20 Sep 2026 16:47:44 -0000
> @@ -535,7 +535,6 @@ void			ml_init(struct mbuf_list *);
>  void			ml_enqueue(struct mbuf_list *, struct mbuf *);
>  struct mbuf *		ml_dequeue(struct mbuf_list *);
>  void			ml_enlist(struct mbuf_list *, struct mbuf_list *);
> -struct mbuf *		ml_dechain(struct mbuf_list *);
>  unsigned int		ml_purge(struct mbuf_list *);
>  unsigned int		ml_hdatalen(struct mbuf_list *);
>  
> 
>