diff options
Diffstat (limited to 'scripts/mod/file2alias.c')
| -rw-r--r-- | scripts/mod/file2alias.c | 28 |
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. |