diff options
Diffstat (limited to 'drivers/thunderbolt/ctl.h')
| -rw-r--r-- | drivers/thunderbolt/ctl.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/thunderbolt/ctl.h b/drivers/thunderbolt/ctl.h index 9812b1c86d4f..914da86ec77d 100644 --- a/drivers/thunderbolt/ctl.h +++ b/drivers/thunderbolt/ctl.h @@ -43,6 +43,17 @@ static inline u64 tb_cfg_get_route(const struct tb_cfg_header *header) return (u64) header->route_hi << 32 | header->route_lo; } +static inline struct tb_cfg_header tb_cfg_make_header(u64 route) +{ + struct tb_cfg_header header = { + .route_hi = route >> 32, + .route_lo = route, + }; + /* check for overflow, route_hi is not 32 bits! */ + WARN_ON(tb_cfg_get_route(&header) != route); + return header; +} + int tb_cfg_error(struct tb_ctl *ctl, u64 route, u32 port, enum tb_cfg_error error); struct tb_cfg_result tb_cfg_reset(struct tb_ctl *ctl, u64 route, |