svn commit: r324113 - head/usr.sbin/cpucontrol

Konstantin Belousov kib at FreeBSD.org
Sat Sep 30 09:59:33 UTC 2017


Author: kib
Date: Sat Sep 30 09:59:32 2017
New Revision: 324113
URL: https://svnweb.freebsd.org/changeset/base/324113

Log:
  Allow to disable default microcode updates search path with the new
  '-n' option.
  
  Look for updates in the default locations only after user-supplied
  locations are tried.
  
  If newer microcode files are put into non-standard path, both measures
  allow to avoid situation where older update loaded from the default
  path first, and then the second update is applied from non-standard
  path.  Applying intermediate updates might be undesirable.
  
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week

Modified:
  head/usr.sbin/cpucontrol/cpucontrol.c

Modified: head/usr.sbin/cpucontrol/cpucontrol.c
==============================================================================
--- head/usr.sbin/cpucontrol/cpucontrol.c	Fri Sep 29 23:47:23 2017	(r324112)
+++ head/usr.sbin/cpucontrol/cpucontrol.c	Sat Sep 30 09:59:32 2017	(r324113)
@@ -60,6 +60,7 @@ int	verbosity_level = 0;
 #define	FLAG_I	0x01
 #define	FLAG_M	0x02
 #define	FLAG_U	0x04
+#define	FLAG_N	0x08
 
 #define	OP_INVAL	0x00
 #define	OP_READ		0x01
@@ -427,11 +428,7 @@ main(int argc, char *argv[])
 	error = 0;
 	cmdarg = "";	/* To keep gcc3 happy. */
 
-	/*
-	 * Add all default data dirs to the list first.
-	 */
-	datadir_add(DEFAULT_DATADIR);
-	while ((c = getopt(argc, argv, "d:hi:m:uv")) != -1) {
+	while ((c = getopt(argc, argv, "d:hi:m:nuv")) != -1) {
 		switch (c) {
 		case 'd':
 			datadir_add(optarg);
@@ -444,6 +441,9 @@ main(int argc, char *argv[])
 			flags |= FLAG_M;
 			cmdarg = optarg;
 			break;
+		case 'n':
+			flags |= FLAG_N;
+			break;
 		case 'u':
 			flags |= FLAG_U;
 			break;
@@ -463,6 +463,8 @@ main(int argc, char *argv[])
 		usage();
 		/* NOTREACHED */
 	}
+	if ((flags & FLAG_N) == 0)
+		datadir_add(DEFAULT_DATADIR);
 	dev = argv[0];
 	c = flags & (FLAG_I | FLAG_M | FLAG_U);
 	switch (c) {


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