diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-02-19 21:51:30 +0200 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2019-04-18 11:18:52 +0300 |
| commit | fb19fac1d734504073fee64e9f9b28ccd41ab350 (patch) | |
| tree | 2e7be03e98a958f4d27797730caf5f8673883cf3 /drivers/thunderbolt/tb.h | |
| parent | dfe40ca486f60dca1e3223d82acf78cfb39925b8 (diff) | |
| download | lwn-fb19fac1d734504073fee64e9f9b28ccd41ab350.tar.gz lwn-fb19fac1d734504073fee64e9f9b28ccd41ab350.zip | |
thunderbolt: Add helper function to iterate from one port to another
We need to be able to walk from one port to another when we are creating
paths where there are multiple switches between two ports. For this
reason introduce a new function tb_next_port_on_path().
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 43bc4f490021..11d5ab53ad36 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -495,6 +495,8 @@ int tb_port_alloc_in_hopid(struct tb_port *port, int hopid, int max_hopid); void tb_port_release_in_hopid(struct tb_port *port, int hopid); int tb_port_alloc_out_hopid(struct tb_port *port, int hopid, int max_hopid); void tb_port_release_out_hopid(struct tb_port *port, int hopid); +struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, + struct tb_port *prev); int tb_switch_find_vse_cap(struct tb_switch *sw, enum tb_switch_vse_cap vsec); int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap); |