Introduce no_poll() default method for device drivers. Have it

do exactly the same as vop_nopoll() for consistency and put a
comment in the two pointing at each other.

Retire seltrue() in favour of no_poll().

Create private default functions in kern_conf.c instead of public
ones.

Change default strategy to return the bio with ENODEV instead of
doing nothing which would lead the bio stranded.

Retire public nullopen() and nullclose() as well as the entire band
of public no{read,write,ioctl,mmap,kqfilter,strategy,poll,dump}
funtions, they are the default actions now.

Move the final two trivial functions from subr_xxx.c to kern_conf.c
and retire the now empty subr_xxx.c

1 files changed, 0 insertions, 12 deletions

diff --git a/sys/sys/linedisc.h b/sys/sys/linedisc.h
index 14facbae41de..c18d5b40baf0 100644
--- a/sys/sys/linedisc.h
+++ b/sys/sys/linedisc.h
@@ -258,23 +258,11 @@ void ldisc_deregister(int);
 #endif /* _KERNEL */
 
 #ifdef _KERNEL
-d_read_t	noread;
-d_write_t	nowrite;
-d_ioctl_t	noioctl;
-d_mmap_t	nommap;
-d_kqfilter_t	nokqfilter;
-#define	nostrategy	((d_strategy_t *)NULL)
-#define	nopoll	seltrue
-
-dumper_t	nodump;
 
 #define NUMCDEVSW 256
 
 #define	MAJOR_AUTO	0	/* XXX: Not GM */
 
-d_open_t	nullopen;
-d_close_t	nullclose;
-
 l_ioctl_t	l_nullioctl;
 l_read_t	l_noread;
 l_write_t	l_nowrite;