diff options
| author | Gregory Greenman <gregory.greenman@intel.com> | 2022-07-03 18:04:15 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2022-07-15 11:43:20 +0200 |
| commit | 727eff4dd198d79f9e81d3aafbab741a8374b5d0 (patch) | |
| tree | 364edd9c1d2244f57d5253fb5590b112c2887b4c /net/mac80211/driver-ops.h | |
| parent | fa2ca639c4e6f8d9bf11687a7e5e348c4c15b8c0 (diff) | |
wifi: mac80211: replace link_id with link_conf in switch/(un)assign_vif_chanctx()
Since mac80211 already has a protected pointer to link_conf,
pass it to the driver to avoid additional RCU locking.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/driver-ops.h')
| -rw-r--r-- | net/mac80211/driver-ops.h | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index a04a88d122b7..0f06081c68ca 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -937,22 +937,31 @@ static inline void drv_change_chanctx(struct ieee80211_local *local, trace_drv_return_void(local); } +static inline void drv_verify_link_exists(struct ieee80211_sub_if_data *sdata, + struct ieee80211_bss_conf *link_conf) +{ + /* deflink always exists, so need to check only for other links */ + if (sdata->deflink.conf != link_conf) + sdata_assert_lock(sdata); +} + static inline int drv_assign_vif_chanctx(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, - unsigned int link_id, + struct ieee80211_bss_conf *link_conf, struct ieee80211_chanctx *ctx) { int ret = 0; + drv_verify_link_exists(sdata, link_conf); if (!check_sdata_in_driver(sdata)) return -EIO; - trace_drv_assign_vif_chanctx(local, sdata, link_id, ctx); + trace_drv_assign_vif_chanctx(local, sdata, link_conf, ctx); if (local->ops->assign_vif_chanctx) { WARN_ON_ONCE(!ctx->driver_present); ret = local->ops->assign_vif_chanctx(&local->hw, &sdata->vif, - link_id, + link_conf, &ctx->conf); } trace_drv_return_int(local, ret); @@ -962,20 +971,21 @@ static inline int drv_assign_vif_chanctx(struct ieee80211_local *local, static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, - unsigned int link_id, + struct ieee80211_bss_conf *link_conf, struct ieee80211_chanctx *ctx) { might_sleep(); + drv_verify_link_exists(sdata, link_conf); if (!check_sdata_in_driver(sdata)) return; - trace_drv_unassign_vif_chanctx(local, sdata, link_id, ctx); + trace_drv_unassign_vif_chanctx(local, sdata, link_conf, ctx); if (local->ops->unassign_vif_chanctx) { WARN_ON_ONCE(!ctx->driver_present); local->ops->unassign_vif_chanctx(&local->hw, &sdata->vif, - link_id, + link_conf, &ctx->conf); } trace_drv_return_void(local); @@ -992,7 +1002,7 @@ static inline int drv_start_ap(struct ieee80211_local *local, int ret = 0; /* make sure link_conf is protected */ - sdata_assert_lock(sdata); + drv_verify_link_exists(sdata, link_conf); might_sleep(); @@ -1011,7 +1021,7 @@ static inline void drv_stop_ap(struct ieee80211_local *local, struct ieee80211_bss_conf *link_conf) { /* make sure link_conf is protected */ - sdata_assert_lock(sdata); + drv_verify_link_exists(sdata, link_conf); if (!check_sdata_in_driver(sdata)) return; |