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Re: [PATCH 5/6] wifi: mac80211: export ieee80211_tpt_led_trig_tx/rx for driver

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On 8/25/2023 10:47 AM, Yi-Chia Hsieh wrote:
Whenever the H/W path is enabled and traffic is in the binding state,
mac80211 is not aware of the traffic. Consequently, the LED does not
blink for that reason.

The ieee80211_tpt_led_trig_tx/rx functions are exported for the driver
so that we can report the tx and rx bytes from the driver when
the H/W path is being used.

Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@xxxxxxxxxxxx>
---
  include/net/mac80211.h | 17 +++++++++++++++++
  net/mac80211/led.c     | 18 ++++++++++++++++++
  net/mac80211/led.h     | 18 ------------------
  net/mac80211/rx.c      |  2 +-
  net/mac80211/tx.c      |  4 ++--
  5 files changed, 38 insertions(+), 21 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 3a8a2d2c58c3..53804822dc8d 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4729,6 +4729,8 @@ __ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
  				   unsigned int flags,
  				   const struct ieee80211_tpt_blink *blink_table,
  				   unsigned int blink_table_len);
+void __ieee80211_tpt_led_trig_tx(struct ieee80211_hw *hw, int bytes);
+void __ieee80211_tpt_led_trig_rx(struct ieee80211_hw *hw, int bytes);

suggest these should be in led.h since they are local to mac80211 and should not be directly invoked by clients of mac80211

  #endif
  /**
   * ieee80211_get_tx_led_name - get name of TX LED
@@ -4839,6 +4841,21 @@ ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, unsigned int flags,
  #endif
  }
+static inline void
+ieee80211_tpt_led_trig_tx(struct ieee80211_hw *hw, int bytes)
+{
+#ifdef CPTCFG_MAC80211_LEDS

why isn't this using CONFIG_MAC80211_LEDS??

+	__ieee80211_tpt_led_trig_tx(hw, bytes);
+#endif
+}
+
+static inline void
+ieee80211_tpt_led_trig_rx(struct ieee80211_hw *hw, int bytes)
+{
+#ifdef CPTCFG_MAC80211_LEDS
+	__ieee80211_tpt_led_trig_rx(hw, bytes);
+#endif
+}
  /**
   * ieee80211_unregister_hw - Unregister a hardware device
   *
diff --git a/net/mac80211/led.c b/net/mac80211/led.c
index 2dc732147e85..af03a2ef5c6a 100644
--- a/net/mac80211/led.c
+++ b/net/mac80211/led.c
@@ -319,6 +319,24 @@ __ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
  }
  EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger);
+void __ieee80211_tpt_led_trig_tx(struct ieee80211_hw *hw, int bytes)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	if (atomic_read(&local->tpt_led_active))
+		local->tpt_led_trigger->tx_bytes += bytes;
+}
+EXPORT_SYMBOL(__ieee80211_tpt_led_trig_tx);
+
+void __ieee80211_tpt_led_trig_rx(struct ieee80211_hw *hw, int bytes)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	if (atomic_read(&local->tpt_led_active))
+		local->tpt_led_trigger->rx_bytes += bytes;
+}
+EXPORT_SYMBOL(__ieee80211_tpt_led_trig_rx);
+

why are you making these exported implementations instead of keeping them as inline in led.h?

  static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
  {
  	struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
diff --git a/net/mac80211/led.h b/net/mac80211/led.h
index d25f13346b82..98db4356d0de 100644
--- a/net/mac80211/led.h
+++ b/net/mac80211/led.h
@@ -66,21 +66,3 @@ static inline void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
  {
  }
  #endif
-
-static inline void
-ieee80211_tpt_led_trig_tx(struct ieee80211_local *local, int bytes)
-{
-#ifdef CONFIG_MAC80211_LEDS
-	if (atomic_read(&local->tpt_led_active))
-		local->tpt_led_trigger->tx_bytes += bytes;
-#endif
-}
-
-static inline void
-ieee80211_tpt_led_trig_rx(struct ieee80211_local *local, int bytes)
-{
-#ifdef CONFIG_MAC80211_LEDS
-	if (atomic_read(&local->tpt_led_active))
-		local->tpt_led_trigger->rx_bytes += bytes;
-#endif
-}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 4f707d2a160f..5747d7dac4d7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -5375,7 +5375,7 @@ void ieee80211_rx_list(struct ieee80211_hw *hw, struct ieee80211_sta *pubsta,
  	if (skb) {
  		if ((status->flag & RX_FLAG_8023) ||
  			ieee80211_is_data_present(hdr->frame_control))
-			ieee80211_tpt_led_trig_rx(local, skb->len);
+			ieee80211_tpt_led_trig_rx(&local->hw, skb->len);

what is the rationale for changing the signature, especially given that the first thing the implementations do is local = hw_to_local(hw)

if (status->flag & RX_FLAG_8023)
  			__ieee80211_rx_handle_8023(hw, pubsta, skb, list);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 7fe7280e8437..234de8d3b8bb 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4320,7 +4320,7 @@ void __ieee80211_subif_start_xmit(struct sk_buff *skb,
  	len = 0;
   out:
  	if (len)
-		ieee80211_tpt_led_trig_tx(local, len);
+		ieee80211_tpt_led_trig_tx(&local->hw, len);
  	rcu_read_unlock();
  }
@@ -4646,7 +4646,7 @@ static void ieee80211_8023_xmit(struct ieee80211_sub_if_data *sdata,
  	sta->deflink.tx_stats.packets[queue] += skbs;
  	sta->deflink.tx_stats.bytes[queue] += len;
- ieee80211_tpt_led_trig_tx(local, len);
+	ieee80211_tpt_led_trig_tx(&local->hw, len);
ieee80211_tx_8023(sdata, skb, sta, false);




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