isapnp: put aliases in .modinfo so modinfo can find them.

Once isa devices publish a modalias field, I think udev should "Just Work".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 scripts/mod/file2alias.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -727,6 +727,19 @@ static int do_platform_entry(const char 
 	return 1;
 }
 
+/* Format is: isa:cvNcdNvNfN */
+static int do_isapnp_entry(const char *filename,
+			   struct isapnp_device_id *id, char *alias)
+{
+	strcpy(alias, "isa:");
+	ADD(alias, "cv", id->card_vendor != ISAPNP_ANY_ID, id->card_vendor);
+	ADD(alias, "cd", id->card_device != ISAPNP_ANY_ID, id->card_device);
+	ADD(alias, "v", id->vendor != ISAPNP_ANY_ID, id->vendor);
+	ADD(alias, "f", id->function, id->function);
+	add_wildcard(alias);
+	return 1;
+}
+
 /* Ignore any prefix, eg. some architectures prepend _ */
 static inline int sym_is(const char *symbol, const char *name)
 {
@@ -874,6 +887,10 @@ void handle_moddevtable(struct module *m
 		do_table(symval, sym->st_size,
 			 sizeof(struct platform_device_id), "platform",
 			 do_platform_entry, mod);
+	else if (sym_is(symname, "__mod_isapnp_device_table"))
+		do_table(symval, sym->st_size,
+			 sizeof(struct isapnp_device_id), "isa",
+			 do_isapnp_entry, mod);
 	free(zeros);
 }