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Allow to disable default microcode updates search path with the new

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'-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
This commit is contained in:
Konstantin Belousov 2017-09-30 09:59:32 +00:00
parent 931329f89b
commit 0539c17353
1 changed files with 7 additions and 5 deletions
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12
usr.sbin/cpucontrol/cpucontrol.c
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@ -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) {