diff options
Diffstat (limited to 'drivers/thunderbolt/eeprom.c')
| -rw-r--r-- | drivers/thunderbolt/eeprom.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c index 5c7d80a109b1..d40a5f07fc4c 100644 --- a/drivers/thunderbolt/eeprom.c +++ b/drivers/thunderbolt/eeprom.c @@ -204,6 +204,11 @@ struct tb_drom_entry_header { enum tb_drom_entry_type type:1; } __packed; +struct tb_drom_entry_generic { + struct tb_drom_entry_header header; + u8 data[0]; +} __packed; + struct tb_drom_entry_port { /* BYTES 0-1 */ struct tb_drom_entry_header header; @@ -295,6 +300,32 @@ int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid) return 0; } +static int tb_drom_parse_entry_generic(struct tb_switch *sw, + struct tb_drom_entry_header *header) +{ + const struct tb_drom_entry_generic *entry = + (const struct tb_drom_entry_generic *)header; + + switch (header->index) { + case 1: + /* Length includes 2 bytes header so remove it before copy */ + sw->vendor_name = kstrndup(entry->data, + header->len - sizeof(*header), GFP_KERNEL); + if (!sw->vendor_name) + return -ENOMEM; + break; + + case 2: + sw->device_name = kstrndup(entry->data, + header->len - sizeof(*header), GFP_KERNEL); + if (!sw->device_name) + return -ENOMEM; + break; + } + + return 0; +} + static int tb_drom_parse_entry_port(struct tb_switch *sw, struct tb_drom_entry_header *header) { @@ -350,6 +381,7 @@ static int tb_drom_parse_entries(struct tb_switch *sw) switch (entry->type) { case TB_DROM_ENTRY_GENERIC: + res = tb_drom_parse_entry_generic(sw, entry); break; case TB_DROM_ENTRY_PORT: res = tb_drom_parse_entry_port(sw, entry); |