Remove 11.x ABI compat for kernel dump ioctls

This code was marked gone_in(13), so its time has passed.

The only consumer of this interface is dumpon(8). We do not maintain
strict backwards compatibility for this utility because a) it
can't/shouldn't be used from a jail or chroot and b) it is highly
specific interface unique to FreeBSD. The host's (presumably more
up-to-date) copy of dumpon(8) should be used to configure kernel dump
devices.

Reviewed by:	markj, emaste
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D34913

4 files changed, 0 insertions, 43 deletions

diff --git a/sys/dev/null/null.c b/sys/dev/null/null.c
index cae470a3bcc4..54b648bbf086 100644
--- a/sys/dev/null/null.c
+++ b/sys/dev/null/null.c
@@ -109,11 +109,6 @@ null_ioctl(struct cdev *dev __unused, u_long cmd, caddr_t data __unused,
 
 	error = 0;
 	switch (cmd) {
-#ifdef COMPAT_FREEBSD11
-	case DIOCSKERNELDUMP_FREEBSD11:
-		gone_in(13, "FreeBSD 11.x ABI compat");
-		/* FALLTHROUGH */
-#endif
 #ifdef COMPAT_FREEBSD12
 	case DIOCSKERNELDUMP_FREEBSD12:
 		if (cmd == DIOCSKERNELDUMP_FREEBSD12)
diff --git a/sys/geom/geom_dev.c b/sys/geom/geom_dev.c
index b94df9fcda67..574cfa9f0215 100644
--- a/sys/geom/geom_dev.c
+++ b/sys/geom/geom_dev.c
@@ -570,23 +570,6 @@ g_dev_ioctl(struct cdev *dev, u_long cmd, caddr_t data, int fflag, struct thread
 		if (error == 0 && *(u_int *)data == 0)
 			error = ENOENT;
 		break;
-#ifdef COMPAT_FREEBSD11
-	case DIOCSKERNELDUMP_FREEBSD11:
-	    {
-		struct diocskerneldump_arg kda;
-
-		gone_in(13, "FreeBSD 11.x ABI compat");
-
-		bzero(&kda, sizeof(kda));
-		kda.kda_encryption = KERNELDUMP_ENC_NONE;
-		kda.kda_index = (*(u_int *)data ? 0 : KDA_REMOVE_ALL);
-		if (kda.kda_index == KDA_REMOVE_ALL)
-			error = dumper_remove(devtoname(dev), &kda);
-		else
-			error = g_dev_setdumpdev(dev, &kda);
-		break;
-	    }
-#endif
 #ifdef COMPAT_FREEBSD12
 	case DIOCSKERNELDUMP_FREEBSD12:
 	    {
diff --git a/sys/netinet/netdump/netdump_client.c b/sys/netinet/netdump/netdump_client.c
index d6fd7db364b8..5a1b10316860 100644
--- a/sys/netinet/netdump/netdump_client.c
+++ b/sys/netinet/netdump/netdump_client.c
@@ -500,9 +500,6 @@ netdump_ioctl(struct cdev *dev __unused, u_long cmd, caddr_t addr,
 	struct dumperinfo dumper;
 	uint8_t *encryptedkey;
 	int error;
-#ifdef COMPAT_FREEBSD11
-	u_int u;
-#endif
 #ifdef COMPAT_FREEBSD12
 	struct diocskerneldump_arg_freebsd12 *kda12;
 	struct netdump_conf_freebsd12 *conf12;
@@ -513,18 +510,6 @@ netdump_ioctl(struct cdev *dev __unused, u_long cmd, caddr_t addr,
 	NETDUMP_WLOCK();
 
 	switch (cmd) {
-#ifdef COMPAT_FREEBSD11
-	case DIOCSKERNELDUMP_FREEBSD11:
-		gone_in(13, "11.x ABI compatibility");
-		u = *(u_int *)addr;
-		if (u != 0) {
-			error = ENXIO;
-			break;
-		}
-		if (netdump_enabled())
-			netdump_unconfigure();
-		break;
-#endif
 #ifdef COMPAT_FREEBSD12
 		/*
 		 * Used by dumpon(8) in 12.x for clearing previous
diff --git a/sys/sys/disk.h b/sys/sys/disk.h
index 043a02c2d304..ce79dcad9566 100644
--- a/sys/sys/disk.h
+++ b/sys/sys/disk.h
@@ -58,12 +58,6 @@ void disk_err(struct bio *bp, const char *what, int blkdone, int nl);
 	 * disk label formats.  Don't use it unless you have to.
 	 */
 
-#define	DIOCSKERNELDUMP_FREEBSD11 _IOW('d', 133, u_int)
-	/*
-	 * Enable/Disable (the argument is boolean) the device for kernel
-	 * core dumps.
-	 */
-
 #define	DIOCGFLUSH _IO('d', 135)		/* Flush write cache */
 	/*
 	 * Flush write cache of the device.