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Commit 649b2a4d authored by Johannes Berg's avatar Johannes Berg
Browse files

mac80211: make ieee80211_vif_use_reserved_switch static 



Reorder some code to make ieee80211_vif_use_reserved_switch()
static, no other changes.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent f8134fed

net/mac80211/chan.c

+93 −94
Original line number Diff line number Diff line
@@ -637,41 +637,6 @@ static int ieee80211_assign_vif_chanctx(struct ieee80211_sub_if_data *sdata, 
	return ret;

}



static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)

{

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_chanctx_conf *conf;

	struct ieee80211_chanctx *ctx;

	bool use_reserved_switch = false;



	lockdep_assert_held(&local->chanctx_mtx);



	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,

					 lockdep_is_held(&local->chanctx_mtx));

	if (!conf)

		return;



	ctx = container_of(conf, struct ieee80211_chanctx, conf);



	if (sdata->reserved_chanctx) {

		if (sdata->reserved_chanctx->replace_state ==

		    IEEE80211_CHANCTX_REPLACES_OTHER &&

		    ieee80211_chanctx_num_reserved(local,

						   sdata->reserved_chanctx) > 1)

			use_reserved_switch = true;



		ieee80211_vif_unreserve_chanctx(sdata);

	}



	ieee80211_assign_vif_chanctx(sdata, NULL);

	if (ieee80211_chanctx_refcount(local, ctx) == 0)

		ieee80211_free_chanctx(local, ctx);



	/* Unreserving may ready an in-place reservation. */

	if (use_reserved_switch)

		ieee80211_vif_use_reserved_switch(local);

}



void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,

				   struct ieee80211_chanctx *chanctx)

{
@@ -762,63 +727,6 @@ void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 
	drv_change_chanctx(local, chanctx, IEEE80211_CHANCTX_CHANGE_RX_CHAINS);

}



int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,

			      const struct cfg80211_chan_def *chandef,

			      enum ieee80211_chanctx_mode mode)

{

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_chanctx *ctx;

	u8 radar_detect_width = 0;

	int ret;



	lockdep_assert_held(&local->mtx);



	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));



	mutex_lock(&local->chanctx_mtx);



	ret = cfg80211_chandef_dfs_required(local->hw.wiphy,

					    chandef,

					    sdata->wdev.iftype);

	if (ret < 0)

		goto out;

	if (ret > 0)

		radar_detect_width = BIT(chandef->width);



	sdata->radar_required = ret;



	ret = ieee80211_check_combinations(sdata, chandef, mode,

					   radar_detect_width);

	if (ret < 0)

		goto out;



	__ieee80211_vif_release_channel(sdata);



	ctx = ieee80211_find_chanctx(local, chandef, mode);

	if (!ctx)

		ctx = ieee80211_new_chanctx(local, chandef, mode);

	if (IS_ERR(ctx)) {

		ret = PTR_ERR(ctx);

		goto out;

	}



	sdata->vif.bss_conf.chandef = *chandef;



	ret = ieee80211_assign_vif_chanctx(sdata, ctx);

	if (ret) {

		/* if assign fails refcount stays the same */

		if (ieee80211_chanctx_refcount(local, ctx) == 0)

			ieee80211_free_chanctx(local, ctx);

		goto out;

	}



	ieee80211_recalc_smps_chanctx(local, ctx);

	ieee80211_recalc_radar_chanctx(local, ctx);

 out:

	mutex_unlock(&local->chanctx_mtx);

	return ret;

}



static void

__ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,

				      bool clear)
@@ -1267,8 +1175,7 @@ static int ieee80211_chsw_switch_ctxs(struct ieee80211_local *local) 
	return err;

}



int

ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)

static int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local)

{

	struct ieee80211_sub_if_data *sdata, *sdata_tmp;

	struct ieee80211_chanctx *ctx, *ctx_tmp, *old_ctx;
@@ -1520,6 +1427,98 @@ ieee80211_vif_use_reserved_switch(struct ieee80211_local *local) 
	return err;

}



static void __ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata)

{

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_chanctx_conf *conf;

	struct ieee80211_chanctx *ctx;

	bool use_reserved_switch = false;



	lockdep_assert_held(&local->chanctx_mtx);



	conf = rcu_dereference_protected(sdata->vif.chanctx_conf,

					 lockdep_is_held(&local->chanctx_mtx));

	if (!conf)

		return;



	ctx = container_of(conf, struct ieee80211_chanctx, conf);



	if (sdata->reserved_chanctx) {

		if (sdata->reserved_chanctx->replace_state ==

		    IEEE80211_CHANCTX_REPLACES_OTHER &&

		    ieee80211_chanctx_num_reserved(local,

						   sdata->reserved_chanctx) > 1)

			use_reserved_switch = true;



		ieee80211_vif_unreserve_chanctx(sdata);

	}



	ieee80211_assign_vif_chanctx(sdata, NULL);

	if (ieee80211_chanctx_refcount(local, ctx) == 0)

		ieee80211_free_chanctx(local, ctx);



	/* Unreserving may ready an in-place reservation. */

	if (use_reserved_switch)

		ieee80211_vif_use_reserved_switch(local);

}



int ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,

			      const struct cfg80211_chan_def *chandef,

			      enum ieee80211_chanctx_mode mode)

{

	struct ieee80211_local *local = sdata->local;

	struct ieee80211_chanctx *ctx;

	u8 radar_detect_width = 0;

	int ret;



	lockdep_assert_held(&local->mtx);



	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));



	mutex_lock(&local->chanctx_mtx);



	ret = cfg80211_chandef_dfs_required(local->hw.wiphy,

					    chandef,

					    sdata->wdev.iftype);

	if (ret < 0)

		goto out;

	if (ret > 0)

		radar_detect_width = BIT(chandef->width);



	sdata->radar_required = ret;



	ret = ieee80211_check_combinations(sdata, chandef, mode,

					   radar_detect_width);

	if (ret < 0)

		goto out;



	__ieee80211_vif_release_channel(sdata);



	ctx = ieee80211_find_chanctx(local, chandef, mode);

	if (!ctx)

		ctx = ieee80211_new_chanctx(local, chandef, mode);

	if (IS_ERR(ctx)) {

		ret = PTR_ERR(ctx);

		goto out;

	}



	sdata->vif.bss_conf.chandef = *chandef;



	ret = ieee80211_assign_vif_chanctx(sdata, ctx);

	if (ret) {

		/* if assign fails refcount stays the same */

		if (ieee80211_chanctx_refcount(local, ctx) == 0)

			ieee80211_free_chanctx(local, ctx);

		goto out;

	}



	ieee80211_recalc_smps_chanctx(local, ctx);

	ieee80211_recalc_radar_chanctx(local, ctx);

 out:

	mutex_unlock(&local->chanctx_mtx);

	return ret;

}



int ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata)

{

	struct ieee80211_local *local = sdata->local;

net/mac80211/ieee80211_i.h

+0 −1
Original line number Diff line number Diff line
@@ -1869,7 +1869,6 @@ ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata, 
int __must_check

ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);

int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);

int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local);



int __must_check

ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,