Merge branch 'linux-debug-zerocopy' into refs/top-bases/linux-zfs-branch

cmd/zdb/zdb.c

@@ -2395,7 +2395,7 @@ main(int argc, char **argv)
 
 	kernel_init(FREAD);
 	g_zfs = libzfs_init();
-	VERIFY(g_zfs != NULL);
+	ASSERT(g_zfs != NULL);
 
 	for (c = 0; c < 256; c++) {
 		if (dump_all && c != 'l' && c != 'R')

lib/libzfs/libzfs_sendrecv.c

@@ -39,7 +39,6 @@
 #include <sys/mntent.h>
 #include <sys/mnttab.h>
 #include <sys/avl.h>
-#include <sys/debug.h>
 #include <stddef.h>
 
 #include <libzfs.h>

lib/libzfs/libzfs_util.c

@@ -579,8 +579,6 @@ libzfs_init(void)
 	}
 
 	if ((hdl->libzfs_fd = open(ZFS_DEV, O_RDWR)) < 0) {
-		(void) fprintf(stderr, "Unable to open %s: (%d) %s\n",
-			       ZFS_DEV, errno, strerror(errno));
 		free(hdl);
 		return (NULL);
 	}