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-rw-r--r--scripts/mod/file2alias.c28
1 files changed, 27 insertions, 1 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index d0e41723627f..e17a29ae2e97 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -40,6 +40,7 @@ typedef struct {
typedef struct {
__u8 b[16];
} uuid_t;
+#define UUID_STRING_LEN 36
/* Big exception to the "don't include kernel headers into userspace, which
* even potentially has different endianness and word sizes, since
@@ -53,6 +54,9 @@ struct devtable {
int (*do_entry)(const char *filename, void *symval, char *alias);
};
+/* Size of alias provided to do_entry functions */
+#define ALIAS_SIZE 500
+
/* Define a variable f that holds the value of field f of struct devid
* based at address m.
*/
@@ -1305,6 +1309,27 @@ static int do_tee_entry(const char *filename, void *symval, char *alias)
return 1;
}
+/* Looks like: wmi:guid */
+static int do_wmi_entry(const char *filename, void *symval, char *alias)
+{
+ int len;
+ DEF_FIELD_ADDR(symval, wmi_device_id, guid_string);
+
+ if (strlen(*guid_string) != UUID_STRING_LEN) {
+ warn("Invalid WMI device id 'wmi:%s' in '%s'\n",
+ *guid_string, filename);
+ return 0;
+ }
+
+ len = snprintf(alias, ALIAS_SIZE, WMI_MODULE_PREFIX "%s", *guid_string);
+ if (len < 0 || len >= ALIAS_SIZE) {
+ warn("Could not generate all MODULE_ALIAS's in '%s'\n",
+ filename);
+ return 0;
+ }
+ return 1;
+}
+
/* Does namelen bytes of name exactly match the symbol? */
static bool sym_is(const char *name, unsigned namelen, const char *symbol)
{
@@ -1321,7 +1346,7 @@ static void do_table(void *symval, unsigned long size,
struct module *mod)
{
unsigned int i;
- char alias[500];
+ char alias[ALIAS_SIZE];
device_id_check(mod->name, device_id, size, id_size, symval);
/* Leave last one: it's the terminator. */
@@ -1376,6 +1401,7 @@ static const struct devtable devtable[] = {
{"tbsvc", SIZE_tb_service_id, do_tbsvc_entry},
{"typec", SIZE_typec_device_id, do_typec_entry},
{"tee", SIZE_tee_client_device_id, do_tee_entry},
+ {"wmi", SIZE_wmi_device_id, do_wmi_entry},
};
/* Create MODULE_ALIAS() statements.