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modprobe: Add support for modprobe.blacklist=module1,module2,...

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function                                             old     new   delta
parse_and_add_kcmdline_module_options                  -     186    +186
modprobe_main                                        713     798     +85
do_modprobe                                          648     451    -197
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/1 up/down: 271/-197)           Total: 74 bytes

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Andy Shevchenko 2020-11-03 17:32:12 +02:00 committed by Denys Vlasenko
parent 07abc7c6f7
commit e4202df091
1 changed files with 19 additions and 0 deletions
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19
modutils/modprobe.c
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@ -663,6 +663,25 @@ int modprobe_main(int argc UNUSED_PARAM, char **argv)
load_modules_dep();
}
/* Handle modprobe.blacklist=module1,module2,... */
if (ENABLE_FEATURE_MODPROBE_BLACKLIST) {
char *options;
char *substr;
options = parse_and_add_kcmdline_module_options(NULL, "modprobe");
while ((substr = strsep(&options, " ")) != NULL) {
char *fn = is_prefixed_with(substr, "blacklist=");
if (!fn)
continue;
while ((substr = strsep(&fn, ",")) != NULL) {
/* blacklist <modulename> */
get_or_add_modentry(substr)->flags |= MODULE_FLAG_BLACKLISTED;
DBG("blacklist: %s", substr);
}
}
/*free(options); - WRONG, strsep may have advanced it */
}
rc = 0;
while ((me = llist_pop(&G.probes)) != NULL) {
if (me->realnames == NULL) {