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modprobe: read modules.builtin

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This allows explicit probing to succeed when the requested module
is actually built-in, and corrects the error message for removal.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Ben Hutchings 2017-04-06 11:54:04 +02:00 committed by Denys Vlasenko
parent 9c192e7f94
commit 803c85a207
1 changed files with 11 additions and 3 deletions
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14
modutils/modprobe.c
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@ -171,6 +171,7 @@ static const char modprobe_longopts[] ALIGN1 =
/* "was seen in modules.dep": */
#define MODULE_FLAG_FOUND_IN_MODDEP 0x0004
#define MODULE_FLAG_BLACKLISTED 0x0008
#define MODULE_FLAG_BUILTIN 0x0010
struct globals {
llist_t *probes; /* MEs of module(s) requested on cmdline */
@ -217,7 +218,7 @@ static void add_probe(const char *name)
m = get_or_add_modentry(name);
if (!(option_mask32 & (OPT_REMOVE | OPT_SHOW_DEPS))
&& (m->flags & MODULE_FLAG_LOADED)
&& (m->flags & (MODULE_FLAG_LOADED | MODULE_FLAG_BUILTIN))
) {
DBG("skipping %s, it is already loaded", name);
return;
@ -413,8 +414,10 @@ static int do_modprobe(struct module_entry *m)
if (!(m->flags & MODULE_FLAG_FOUND_IN_MODDEP)) {
if (!(option_mask32 & INSMOD_OPT_SILENT))
bb_error_msg("module %s not found in modules.dep",
humanly_readable_name(m));
bb_error_msg((m->flags & MODULE_FLAG_BUILTIN) ?
"module %s is builtin" :
"module %s not found in modules.dep",
humanly_readable_name(m));
return -ENOENT;
}
DBG("do_modprob'ing %s", m->modname);
@ -618,6 +621,11 @@ int modprobe_main(int argc UNUSED_PARAM, char **argv)
while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL & ~PARSE_GREEDY))
get_or_add_modentry(s)->flags |= MODULE_FLAG_LOADED;
config_close(parser);
parser = config_open2("modules.builtin", fopen_for_read);
while (config_read(parser, &s, 1, 1, "# \t", PARSE_NORMAL))
get_or_add_modentry(s)->flags |= MODULE_FLAG_BUILTIN;
config_close(parser);
}
if (opt & (OPT_INSERT_ALL | OPT_REMOVE)) {