diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-09-04 09:09:34 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2023-10-20 18:18:01 +0300 |
| commit | c4ff14436952c3d0dd05769d76cf48e73a253b48 (patch) | |
| tree | a99548a8da42ac58a0d9ebb1db2c12face3ea334 /drivers/thunderbolt | |
| parent | 956c3abe72fb6a651b8cf77c28462f7e5b6a48b1 (diff) | |
| download | linux-c4ff14436952c3d0dd05769d76cf48e73a253b48.tar.xz | |
thunderbolt: Introduce tb_switch_depth()
This is useful helper to find out the depth of a connected router.
Convert the existing users to call this helper instead of open-coding.
No functional changes.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt')
| -rw-r--r-- | drivers/thunderbolt/tb.c | 4 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb.h | 9 |
2 files changed, 11 insertions, 2 deletions
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index ad7142be39cc..a0932545f439 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -255,13 +255,13 @@ static int tb_enable_clx(struct tb_switch *sw) * this in the future to cover the whole topology if it turns * out to be beneficial. */ - while (sw && sw->config.depth > 1) + while (sw && tb_switch_depth(sw) > 1) sw = tb_switch_parent(sw); if (!sw) return 0; - if (sw->config.depth != 1) + if (tb_switch_depth(sw) != 1) return 0; /* diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 869ac360e1b5..80e28124f583 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -866,6 +866,15 @@ static inline struct tb_port *tb_switch_downstream_port(struct tb_switch *sw) return tb_port_at(tb_route(sw), tb_switch_parent(sw)); } +/** + * tb_switch_depth() - Returns depth of the connected router + * @sw: Router + */ +static inline int tb_switch_depth(const struct tb_switch *sw) +{ + return sw->config.depth; +} + static inline bool tb_switch_is_light_ridge(const struct tb_switch *sw) { return sw->config.vendor_id == PCI_VENDOR_ID_INTEL && |