svn commit: r350909 - stable/12/sbin/nvmecontrol

Alexander Motin mav at FreeBSD.org
Mon Aug 12 17:40:25 UTC 2019


Author: mav
Date: Mon Aug 12 17:40:22 2019
New Revision: 350909
URL: https://svnweb.freebsd.org/changeset/base/350909

Log:
  MFC r341412 (by imp): Usage cleanup pt 1
  
  Provide a usage() function that takes a struct nvme_function pointer
  and produces a usage mssage. Eliminate all now-redundant usage
  functions. Propigate the new argument through the program as needed.
  Use common routine to print usage.

Modified:
  stable/12/sbin/nvmecontrol/devlist.c
  stable/12/sbin/nvmecontrol/firmware.c
  stable/12/sbin/nvmecontrol/format.c
  stable/12/sbin/nvmecontrol/identify.c
  stable/12/sbin/nvmecontrol/logpage.c
  stable/12/sbin/nvmecontrol/ns.c
  stable/12/sbin/nvmecontrol/nvmecontrol.c
  stable/12/sbin/nvmecontrol/nvmecontrol.h
  stable/12/sbin/nvmecontrol/perftest.c
  stable/12/sbin/nvmecontrol/power.c
  stable/12/sbin/nvmecontrol/reset.c
  stable/12/sbin/nvmecontrol/wdc.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sbin/nvmecontrol/devlist.c
==============================================================================
--- stable/12/sbin/nvmecontrol/devlist.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/devlist.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -46,14 +46,6 @@ __FBSDID("$FreeBSD$");
 #define DEVLIST_USAGE							       \
 "       nvmecontrol devlist\n"
 
-static void
-devlist_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, DEVLIST_USAGE);
-	exit(1);
-}
-
 static inline uint32_t
 ns_get_sector_size(struct nvme_namespace_data *nsdata)
 {
@@ -68,7 +60,7 @@ ns_get_sector_size(struct nvme_namespace_data *nsdata)
 }
 
 static void
-devlist(int argc, char *argv[])
+devlist(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_controller_data	cdata;
 	struct nvme_namespace_data	nsdata;
@@ -80,7 +72,7 @@ devlist(int argc, char *argv[])
 	while ((ch = getopt(argc, argv, "")) != -1) {
 		switch ((char)ch) {
 		default:
-			devlist_usage();
+			usage(nf);
 		}
 	}
 

Modified: stable/12/sbin/nvmecontrol/firmware.c
==============================================================================
--- stable/12/sbin/nvmecontrol/firmware.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/firmware.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -53,7 +53,6 @@ __FBSDID("$FreeBSD$");
 #define FIRMWARE_USAGE							       \
 "       nvmecontrol firmware [-s slot] [-f path_to_firmware] [-a] <controller id>\n"
 
-
 static int
 slot_has_valid_firmware(int fd, int slot)
 {
@@ -175,16 +174,8 @@ activate_firmware(int fd, int slot, int activate_actio
 }
 
 static void
-firmware_usage(void)
+firmware(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, FIRMWARE_USAGE);
-	exit(1);
-}
-
-static void
-firmware(int argc, char *argv[])
-{
 	int				fd = -1, slot = 0;
 	int				a_flag, s_flag, f_flag;
 	int				activate_action, reboot_required;
@@ -210,18 +201,18 @@ firmware(int argc, char *argv[])
 				fprintf(stderr,
 				    "\"%s\" not valid slot.\n",
 				    optarg);
-				firmware_usage();
+				usage(nf);
 			} else if (slot == 0) {
 				fprintf(stderr,
 				    "0 is not a valid slot number. "
 				    "Slot numbers start at 1.\n");
-				firmware_usage();
+				usage(nf);
 			} else if (slot > 7) {
 				fprintf(stderr,
 				    "Slot number %s specified which is "
 				    "greater than max allowed slot number of "
 				    "7.\n", optarg);
-				firmware_usage();
+				usage(nf);
 			}
 			s_flag = true;
 			break;
@@ -234,20 +225,20 @@ firmware(int argc, char *argv[])
 
 	/* Check that a controller (and not a namespace) was specified. */
 	if (optind >= argc || strstr(argv[optind], NVME_NS_PREFIX) != NULL)
-		firmware_usage();
+		usage(nf);
 
 	if (!f_flag && !a_flag) {
 		fprintf(stderr,
 		    "Neither a replace ([-f path_to_firmware]) nor "
 		    "activate ([-a]) firmware image action\n"
 		    "was specified.\n");
-		firmware_usage();
+		usage(nf);
 	}
 
 	if (!f_flag && a_flag && slot == 0) {
 		fprintf(stderr,
 		    "Slot number to activate not specified.\n");
-		firmware_usage();
+		usage(nf);
 	}
 
 	controller = argv[optind];

Modified: stable/12/sbin/nvmecontrol/format.c
==============================================================================
--- stable/12/sbin/nvmecontrol/format.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/format.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -47,16 +47,8 @@ __FBSDID("$FreeBSD$");
 "       nvmecontrol format [-f fmt] [-m mset] [-p pi] [-l pil] [-E] [-C] <controller id|namespace id>\n"
 
 static void
-format_usage(void)
+format(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, FORMAT_USAGE);
-	exit(1);
-}
-
-static void
-format(int argc, char *argv[])
-{
 	struct nvme_controller_data	cd;
 	struct nvme_namespace_data	nsd;
 	struct nvme_pt_command		pt;
@@ -67,7 +59,7 @@ format(int argc, char *argv[])
 	int lbaf = -1, mset = -1, pi = -1, pil = -1, ses = 0;
 
 	if (argc < 2)
-		format_usage();
+		usage(nf);
 
 	while ((ch = getopt(argc, argv, "f:m:p:l:EC")) != -1) {
 		switch ((char)ch) {
@@ -94,13 +86,13 @@ format(int argc, char *argv[])
 			ses = 2;
 			break;
 		default:
-			format_usage();
+			usage(nf);
 		}
 	}
 
 	/* Check that a controller or namespace was specified. */
 	if (optind >= argc)
-		format_usage();
+		usage(nf);
 	target = argv[optind];
 
 	/*

Modified: stable/12/sbin/nvmecontrol/identify.c
==============================================================================
--- stable/12/sbin/nvmecontrol/identify.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/identify.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -160,16 +160,8 @@ print_namespace(struct nvme_namespace_data *nsdata)
 }
 
 static void
-identify_usage(void)
+identify_ctrlr(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, IDENTIFY_USAGE);
-	exit(1);
-}
-
-static void
-identify_ctrlr(int argc, char *argv[])
-{
 	struct nvme_controller_data	cdata;
 	int				ch, fd, hexflag = 0, hexlength;
 	int				verboseflag = 0;
@@ -183,13 +175,13 @@ identify_ctrlr(int argc, char *argv[])
 			hexflag = 1;
 			break;
 		default:
-			identify_usage();
+			usage(nf);
 		}
 	}
 
 	/* Check that a controller was specified. */
 	if (optind >= argc)
-		identify_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	read_controller_data(fd, &cdata);
@@ -207,7 +199,7 @@ identify_ctrlr(int argc, char *argv[])
 
 	if (verboseflag == 1) {
 		fprintf(stderr, "-v not currently supported without -x\n");
-		identify_usage();
+		usage(nf);
 	}
 
 	nvme_print_controller(&cdata);
@@ -215,7 +207,7 @@ identify_ctrlr(int argc, char *argv[])
 }
 
 static void
-identify_ns(int argc, char *argv[])
+identify_ns(struct nvme_function *nf,int argc, char *argv[])
 {
 	struct nvme_namespace_data	nsdata;
 	char				path[64];
@@ -232,13 +224,13 @@ identify_ns(int argc, char *argv[])
 			hexflag = 1;
 			break;
 		default:
-			identify_usage();
+			usage(nf);
 		}
 	}
 
 	/* Check that a namespace was specified. */
 	if (optind >= argc)
-		identify_usage();
+		usage(nf);
 
 	/*
 	 * Check if the specified device node exists before continuing.
@@ -271,7 +263,7 @@ identify_ns(int argc, char *argv[])
 
 	if (verboseflag == 1) {
 		fprintf(stderr, "-v not currently supported without -x\n");
-		identify_usage();
+		usage(nf);
 	}
 
 	print_namespace(&nsdata);
@@ -279,18 +271,18 @@ identify_ns(int argc, char *argv[])
 }
 
 static void
-identify(int argc, char *argv[])
+identify(struct nvme_function *nf, int argc, char *argv[])
 {
 	char	*target;
 
 	if (argc < 2)
-		identify_usage();
+		usage(nf);
 
 	while (getopt(argc, argv, "vx") != -1) ;
 
 	/* Check that a controller or namespace was specified. */
 	if (optind >= argc)
-		identify_usage();
+		usage(nf);
 
 	target = argv[optind];
 
@@ -302,9 +294,9 @@ identify(int argc, char *argv[])
 	 *  otherwise, consider it a controller.
 	 */
 	if (strstr(target, NVME_NS_PREFIX) == NULL)
-		identify_ctrlr(argc, argv);
+		identify_ctrlr(nf, argc, argv);
 	else
-		identify_ns(argc, argv);
+		identify_ns(nf, argc, argv);
 }
 
 NVME_COMMAND(top, identify, identify, IDENTIFY_USAGE);

Modified: stable/12/sbin/nvmecontrol/logpage.c
==============================================================================
--- stable/12/sbin/nvmecontrol/logpage.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/logpage.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -473,14 +473,6 @@ NVME_LOGPAGE(samsung_smart,
     print_intel_add_smart,		DEFAULT_SIZE);
 
 static void
-logpage_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, LOGPAGE_USAGE);
-	exit(1);
-}
-
-static void
 logpage_help(void)
 {
 	struct logpage_function		**f;
@@ -498,7 +490,7 @@ logpage_help(void)
 }
 
 static void
-logpage(int argc, char *argv[])
+logpage(struct nvme_function *nf, int argc, char *argv[])
 {
 	int				fd;
 	int				log_page = 0, pageflag = false;
@@ -529,7 +521,7 @@ logpage(int argc, char *argv[])
 				fprintf(stderr,
 				    "\"%s\" not valid log page id.\n",
 				    optarg);
-				logpage_usage();
+				usage(nf);
 			}
 			pageflag = true;
 			break;
@@ -546,12 +538,12 @@ logpage(int argc, char *argv[])
 
 	if (!pageflag) {
 		printf("Missing page_id (-p).\n");
-		logpage_usage();
+		usage(nf);
 	}
 
 	/* Check that a controller and/or namespace was specified. */
 	if (optind >= argc)
-		logpage_usage();
+		usage(nf);
 
 	if (strstr(argv[optind], NVME_NS_PREFIX) != NULL) {
 		ns_specified = true;

Modified: stable/12/sbin/nvmecontrol/ns.c
==============================================================================
--- stable/12/sbin/nvmecontrol/ns.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/ns.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -60,48 +60,16 @@ SET_DECLARE(ns, struct nvme_function);
 #define NSDETACH_USAGE							\
 "       nvmecontrol ns detach -n nsid [-c ctrlrid] nvmeN\n"
 
-void nscreate(int argc, char *argv[]);
-void nsdelete(int argc, char *argv[]);
-void nsattach(int argc, char *argv[]);
-void nsdetach(int argc, char *argv[]);
+void nscreate(struct nvme_function *nf, int argc, char *argv[]);
+void nsdelete(struct nvme_function *nf, int argc, char *argv[]);
+void nsattach(struct nvme_function *nf, int argc, char *argv[]);
+void nsdetach(struct nvme_function *nf, int argc, char *argv[]);
 
 NVME_COMMAND(ns, create, nscreate, NSCREATE_USAGE);
 NVME_COMMAND(ns, delete, nsdelete, NSDELETE_USAGE);
 NVME_COMMAND(ns, attach, nsattach, NSATTACH_USAGE);
 NVME_COMMAND(ns, detach, nsdetach, NSDETACH_USAGE);
 
-static void
-nscreate_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, NSCREATE_USAGE);
-	exit(1);
-}
-
-static void
-nsdelete_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, NSDELETE_USAGE);
-	exit(1);
-}
-
-static void
-nsattach_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, NSATTACH_USAGE);
-	exit(1);
-}
-
-static void
-nsdetach_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, NSDETACH_USAGE);
-	exit(1);
-}
-
 struct ns_result_str {
 	uint16_t res;
 	const char * str;
@@ -142,7 +110,7 @@ get_res_str(uint16_t res)
  * 0xb = Thin Provisioning Not supported
  */
 void
-nscreate(int argc, char *argv[])
+nscreate(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_pt_command	pt;
 	struct nvme_controller_data cd;
@@ -151,7 +119,7 @@ nscreate(int argc, char *argv[])
 	int	ch, fd, result, lbaf = 0, mset = 0, nmic = -1, pi = 0, pil = 0;
 
 	if (optind >= argc)
-		nscreate_usage();
+		usage(nf);
 
 	while ((ch = getopt(argc, argv, "s:c:f:m:n:p:l:")) != -1) {
 		switch (ch) {
@@ -177,17 +145,17 @@ nscreate(int argc, char *argv[])
 			pil = strtol(optarg, NULL, 0);
 			break;
 		default:
-			nscreate_usage();
+			usage(nf);
 		}
 	}
 
 	if (optind >= argc)
-		nscreate_usage();
+		usage(nf);
 
 	if (cap == -1)
 		cap = nsze;
 	if (nsze == -1 || cap == -1)
-		nscreate_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	read_controller_data(fd, &cd);
@@ -237,7 +205,7 @@ nscreate(int argc, char *argv[])
 }
 
 void
-nsdelete(int argc, char *argv[])
+nsdelete(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_pt_command	pt;
 	struct nvme_controller_data cd;
@@ -245,7 +213,7 @@ nsdelete(int argc, char *argv[])
 	char buf[2];
 
 	if (optind >= argc)
-		nsdelete_usage();
+		usage(nf);
 
 	while ((ch = getopt(argc, argv, "n:")) != -1) {
 		switch ((char)ch) {
@@ -253,12 +221,12 @@ nsdelete(int argc, char *argv[])
 			nsid = strtol(optarg, (char **)NULL, 0);
 			break;
 		default:
-			nsdelete_usage();
+			usage(nf);
 		}
 	}
 
 	if (optind >= argc || nsid == -2)
-		nsdelete_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	read_controller_data(fd, &cd);
@@ -304,7 +272,7 @@ nsdelete(int argc, char *argv[])
  * 0x2 Invalid Field can occur if ctrlrid d.n.e in system.
  */
 void
-nsattach(int argc, char *argv[])
+nsattach(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_pt_command	pt;
 	struct nvme_controller_data cd;
@@ -313,7 +281,7 @@ nsattach(int argc, char *argv[])
 	uint16_t clist[2048];
 
 	if (optind >= argc)
-		nsattach_usage();
+		usage(nf);
 
 	while ((ch = getopt(argc, argv, "n:c:")) != -1) {
 		switch (ch) {
@@ -324,15 +292,15 @@ nsattach(int argc, char *argv[])
 			ctrlrid = strtol(optarg, (char **)NULL, 0);
 			break;
 		default:
-			nsattach_usage();
+			usage(nf);
 		}
 	}
 
 	if (optind >= argc)
-		nsattach_usage();
+		usage(nf);
 
 	if (nsid == -1 )
-		nsattach_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	read_controller_data(fd, &cd);
@@ -383,7 +351,7 @@ nsattach(int argc, char *argv[])
 }
 
 void
-nsdetach(int argc, char *argv[])
+nsdetach(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_pt_command	pt;
 	struct nvme_controller_data cd;
@@ -392,7 +360,7 @@ nsdetach(int argc, char *argv[])
 	uint16_t clist[2048];
 
 	if (optind >= argc)
-		nsdetach_usage();
+		usage(nf);
 
 	while ((ch = getopt(argc, argv, "n:c:")) != -1) {
 		switch (ch) {
@@ -403,15 +371,15 @@ nsdetach(int argc, char *argv[])
 			ctrlrid = strtol(optarg, (char **)NULL, 0);
 			break;
 		default:
-			nsdetach_usage();
+			usage(nf);
 		}
 	}
 
 	if (optind >= argc)
-		nsdetach_usage();
+		usage(nf);
 
 	if (nsid == -1)
-		nsdetach_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	read_controller_data(fd, &cd);
@@ -469,7 +437,7 @@ nsdetach(int argc, char *argv[])
 }
 
 static void
-ns(int argc, char *argv[])
+ns(struct nvme_function *nf __unused, int argc, char *argv[])
 {
 
 	DISPATCH(argc, argv, ns);

Modified: stable/12/sbin/nvmecontrol/nvmecontrol.c
==============================================================================
--- stable/12/sbin/nvmecontrol/nvmecontrol.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/nvmecontrol.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -50,18 +50,33 @@ __FBSDID("$FreeBSD$");
 SET_DECLARE(top, struct nvme_function);
 
 static void
+print_usage(const struct nvme_function *f)
+{
+	fprintf(stderr, "%s", f->usage);
+}
+
+static void
 gen_usage_set(struct nvme_function **f, struct nvme_function **flimit)
 {
 
 	fprintf(stderr, "usage:\n");
 	while (f < flimit) {
-		fprintf(stderr, "%s", (*f)->usage);
+		print_usage(*f);
 		f++;
 	}
 	exit(1);
 }
 
 void
+usage(const struct nvme_function *f)
+{
+
+	fprintf(stderr, "usage:\n");
+	print_usage(f);
+	exit(1);
+}
+
+void
 dispatch_set(int argc, char *argv[], struct nvme_function **tbl,
     struct nvme_function **tbl_limit)
 {
@@ -74,7 +89,7 @@ dispatch_set(int argc, char *argv[], struct nvme_funct
 
 	while (f < tbl_limit) {
 		if (strcmp(argv[1], (*f)->name) == 0) {
-			(*f)->fn(argc-1, &argv[1]);
+			(*f)->fn(*f, argc-1, &argv[1]);
 			return;
 		}
 		f++;

Modified: stable/12/sbin/nvmecontrol/nvmecontrol.h
==============================================================================
--- stable/12/sbin/nvmecontrol/nvmecontrol.h	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/nvmecontrol.h	Mon Aug 12 17:40:22 2019	(r350909)
@@ -34,7 +34,8 @@
 #include <sys/linker_set.h>
 #include <dev/nvme/nvme.h>
 
-typedef void (*nvme_fn_t)(int argc, char *argv[]);
+struct nvme_function;
+typedef void (*nvme_fn_t)(struct nvme_function *nf, int argc, char *argv[]);
 
 struct nvme_function {
 	const char	*name;
@@ -88,6 +89,7 @@ void print_hex(void *data, uint32_t length);
 void read_logpage(int fd, uint8_t log_page, uint32_t nsid, void *payload,
     uint32_t payload_size);
 
+void usage(const struct nvme_function *f);
 void dispatch_set(int argc, char *argv[], struct nvme_function **tbl,
     struct nvme_function **tbl_limit);
 

Modified: stable/12/sbin/nvmecontrol/perftest.c
==============================================================================
--- stable/12/sbin/nvmecontrol/perftest.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/perftest.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -75,16 +75,8 @@ print_perftest(struct nvme_io_test *io_test, bool pert
 }
 
 static void
-perftest_usage(void)
+perftest(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, PERFTEST_USAGE);
-	exit(1);
-}
-
-static void
-perftest(int argc, char *argv[])
-{
 	struct nvme_io_test		io_test;
 	int				fd;
 	int				opt;
@@ -118,13 +110,13 @@ perftest(int argc, char *argv[])
 				fprintf(stderr,
 				    "\"%s\" not valid number of threads.\n",
 				    optarg);
-				perftest_usage();
+				usage(nf);
 			} else if (io_test.num_threads == 0 ||
 				   io_test.num_threads > 128) {
 				fprintf(stderr,
 				    "\"%s\" not valid number of threads.\n",
 				    optarg);
-				perftest_usage();
+				usage(nf);
 			}
 			break;
 		case 'o':
@@ -137,7 +129,7 @@ perftest(int argc, char *argv[])
 			else {
 				fprintf(stderr, "\"%s\" not valid opcode.\n",
 				    optarg);
-				perftest_usage();
+				usage(nf);
 			}
 			break;
 		case 'p':
@@ -155,7 +147,7 @@ perftest(int argc, char *argv[])
 			} else {
 				fprintf(stderr, "\"%s\" not valid size.\n",
 				    optarg);
-				perftest_usage();
+				usage(nf);
 			}
 			break;
 		case 't':
@@ -165,14 +157,15 @@ perftest(int argc, char *argv[])
 				fprintf(stderr,
 				    "\"%s\" not valid time duration.\n",
 				    optarg);
-				perftest_usage();
+				usage(nf);
 			}
 			break;
 		}
 	}
 
 	if (!nflag || !oflag || !sflag || !tflag || optind >= argc)
-		perftest_usage();
+		usage(nf);
+
 
 	open_dev(argv[optind], &fd, 1, 1);
 	if (ioctl(fd, ioctl_cmd, &io_test) < 0)

Modified: stable/12/sbin/nvmecontrol/power.c
==============================================================================
--- stable/12/sbin/nvmecontrol/power.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/power.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -48,14 +48,6 @@ _Static_assert(sizeof(struct nvme_power_state) == 256 
 "       nvmecontrol power [-l] [-p new-state [-w workload-hint]] <controller id>\n"
 
 static void
-power_usage(void)
-{
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, POWER_USAGE);
-	exit(1);
-}
-
-static void
 power_list_one(int i, struct nvme_power_state *nps)
 {
 	int mpower, apower, ipower;
@@ -137,7 +129,7 @@ power_show(int fd)
 }
 
 static void
-power(int argc, char *argv[])
+power(struct nvme_function *nf, int argc, char *argv[])
 {
 	struct nvme_controller_data	cdata;
 	int				ch, listflag = 0, powerflag = 0, power_val = 0, fd;
@@ -154,28 +146,28 @@ power(int argc, char *argv[])
 			power_val = strtol(optarg, &end, 0);
 			if (*end != '\0') {
 				fprintf(stderr, "Invalid power state number: %s\n", optarg);
-				power_usage();
+				usage(nf);
 			}
 			break;
 		case 'w':
 			workload = strtol(optarg, &end, 0);
 			if (*end != '\0') {
 				fprintf(stderr, "Invalid workload hint: %s\n", optarg);
-				power_usage();
+				usage(nf);
 			}
 			break;
 		default:
-			power_usage();
+			usage(nf);
 		}
 	}
 
 	/* Check that a controller was specified. */
 	if (optind >= argc)
-		power_usage();
+		usage(nf);
 
 	if (listflag && powerflag) {
 		fprintf(stderr, "Can't set power and list power states\n");
-		power_usage();
+		usage(nf);
 	}
 
 	open_dev(argv[optind], &fd, 1, 1);

Modified: stable/12/sbin/nvmecontrol/reset.c
==============================================================================
--- stable/12/sbin/nvmecontrol/reset.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/reset.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -45,28 +45,20 @@ __FBSDID("$FreeBSD$");
 "       nvmecontrol reset <controller id>\n"
 
 static void
-reset_usage(void)
+reset(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, RESET_USAGE);
-	exit(1);
-}
-
-static void
-reset(int argc, char *argv[])
-{
 	int	ch, fd;
 
 	while ((ch = getopt(argc, argv, "")) != -1) {
 		switch ((char)ch) {
 		default:
-			reset_usage();
+			usage(nf);
 		}
 	}
 
 	/* Check that a controller was specified. */
 	if (optind >= argc)
-		reset_usage();
+		usage(nf);
 
 	open_dev(argv[optind], &fd, 1, 1);
 	if (ioctl(fd, NVME_RESET_CONTROLLER) < 0)

Modified: stable/12/sbin/nvmecontrol/wdc.c
==============================================================================
--- stable/12/sbin/nvmecontrol/wdc.c	Mon Aug 12 17:39:50 2019	(r350908)
+++ stable/12/sbin/nvmecontrol/wdc.c	Mon Aug 12 17:40:22 2019	(r350909)
@@ -52,7 +52,7 @@ SET_DECLARE(wdc, struct nvme_function);
 #define WDC_NVME_CAP_DIAG_OPCODE	0xe6
 #define WDC_NVME_CAP_DIAG_CMD		0x0000
 
-static void wdc_cap_diag(int argc, char *argv[]);
+static void wdc_cap_diag(struct nvme_function *nf, int argc, char *argv[]);
 
 #define WDC_CAP_DIAG_USAGE	"\tnvmecontrol wdc cap-diag [-o path-template]\n"
 
@@ -154,16 +154,8 @@ wdc_do_dump(int fd, char *tmpl, const char *suffix, ui
 }
 
 static void
-wdc_cap_diag_usage(void)
+wdc_cap_diag(struct nvme_function *nf, int argc, char *argv[])
 {
-	fprintf(stderr, "usage:\n");
-	fprintf(stderr, WDC_CAP_DIAG_USAGE);
-	exit(1);
-}
-
-static void
-wdc_cap_diag(int argc, char *argv[])
-{
 	char path_tmpl[MAXPATHLEN];
 	int ch, fd;
 
@@ -174,12 +166,12 @@ wdc_cap_diag(int argc, char *argv[])
 			strlcpy(path_tmpl, optarg, MAXPATHLEN);
 			break;
 		default:
-			wdc_cap_diag_usage();
+			usage(nf);
 		}
 	}
 	/* Check that a controller was specified. */
 	if (optind >= argc)
-		wdc_cap_diag_usage();
+		usage(nf);
 	open_dev(argv[optind], &fd, 1, 1);
 
 	wdc_do_dump(fd, path_tmpl, "cap_diag", WDC_NVME_CAP_DIAG_OPCODE,
@@ -191,7 +183,7 @@ wdc_cap_diag(int argc, char *argv[])
 }
 
 static void
-wdc(int argc, char *argv[])
+wdc(struct nvme_function *nf __unused, int argc, char *argv[])
 {
 
 	DISPATCH(argc, argv, wdc);


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