extract set_modules_from_modalias()

1 files changed, 36 insertions, 33 deletions

diff --git a/pciusb.c b/pciusb.c
index 25fe8b7..ba89f1c 100644
--- a/pciusb.c
+++ b/pciusb.c
@@ -18,6 +18,39 @@ static struct module_blacklist *blacklist = NULL;
 static const char *config = NULL;
 
 static char *aliasfilename;
+static char *aliasdefault;
+
+void set_modules_from_modalias(struct pciusb_entry *e, char *modalias) {
+	/* Returns the resolved alias, options */
+	read_toplevel_config(config, modalias, 0,
+			     0, &modoptions, &commands, &aliases, &blacklist);
+
+	if (!aliases) {
+		/* We only use canned aliases as last resort. */
+		char *alias_filelist[] = {
+			"/lib/module-init-tools/ldetect-lst-modules.alias",
+			aliasdefault,
+			table_name_to_file("dkms-modules.alias"),
+			NULL,
+		};
+		char **alias_file = alias_filelist;
+		while (!aliases && *alias_file) {
+			read_config(*alias_file, modalias, 0,
+				    0, &modoptions, &commands,
+				    &aliases, &blacklist);
+			aliases = apply_blacklist(aliases, blacklist);
+			alias_file++;
+		}
+	}
+	if (aliases) {
+		// take the last one because we find eg: generic/ata_generic/sata_sil
+		while (aliases->next)
+			aliases = aliases->next;
+		ifree(e->module);
+		e->module = strdup(aliases->module);
+		aliases = NULL;
+	}
+}
 
 static char *find_modalias(const char *bus, struct pciusb_entry *e) {
 	char *modalias = NULL;
@@ -47,7 +80,6 @@ static char *find_modalias(const char *bus, struct pciusb_entry *e) {
 static void find_modules_through_aliases(const char *bus, struct pciusb_entries *entries) {
      unsigned int i;
      char *dirname;
-     char *aliasdefault;
      char *fallback_aliases = table_name_to_file("fallback-modules.alias");
      struct stat st_alias, st_fallback;
 
@@ -70,38 +102,9 @@ static void find_modules_through_aliases(const char *bus, struct pciusb_entries
                continue;
 
 	  char *modalias = find_modalias(bus, e);
-	  if (!modalias)
-		  continue;
-
-          /* Returns the resolved alias, options */
-          read_toplevel_config(config, modalias, 0,
-                               0, &modoptions, &commands, &aliases, &blacklist);
-
-          if (!aliases) {
-               /* We only use canned aliases as last resort. */
-               char *alias_filelist[] = {
-                   "/lib/module-init-tools/ldetect-lst-modules.alias",
-                   aliasdefault,
-                   table_name_to_file("dkms-modules.alias"),
-                   NULL,
-               };
-               char **alias_file = alias_filelist;
-               while (!aliases && *alias_file) {
-                   read_config(*alias_file, modalias, 0,
-                               0, &modoptions, &commands,
-                               &aliases, &blacklist);
-                   aliases = apply_blacklist(aliases, blacklist);
-                   alias_file++;
-               }
-          }
-          if (aliases) {
-               // take the last one because we find eg: generic/ata_generic/sata_sil
-               while (aliases->next)
-                    aliases = aliases->next;
-               ifree(e->module);
-               e->module = strdup(aliases->module);
-               aliases = NULL;
-          }
+	  if (modalias) {
+		  set_modules_from_modalias(e, modalias);
+	  }
      }
      free(aliasfilename);
      free(dirname);