net: ipa: kill ipa_power_modem_queue_wake()

All ipa_power_modem_queue_wake() does is call netif_wake_queue()
on the modem netdev.  There is no need to wrap that call in a
trivial function (and certainly not one defined in "ipa_power.c").

So get rid of ipa_power_modem_queue_wake(), and replace its one
caller with a direct call to netif_wake_queue().  Determine the
netdev pointer to use from the private TX endpoint's netdev pointer.
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20240130192305.250915-8-elder@linaro.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ipa/ipa_modem.c

@@ -277,7 +277,7 @@ static void ipa_modem_wake_queue_work(struct work_struct *work)
 {
 	struct ipa_priv *priv = container_of(work, struct ipa_priv, work);
 
-	ipa_power_modem_queue_wake(priv->ipa);
+	netif_wake_queue(priv->tx->netdev);
 }
 
 /** ipa_modem_resume() - resume callback for runtime_pm

drivers/net/ipa/ipa_power.c

@@ -227,19 +227,6 @@ void ipa_power_suspend_handler(struct ipa *ipa, enum ipa_irq_id irq_id)
 	ipa_interrupt_suspend_clear_all(ipa->interrupt);
 }
 
-/* Transmit can run concurrent with power resume.  When transmitting,
- * we disable further transmits until we can determine whether power
- * is ACTIVE.  If it is, future transmits are re-enabled and the buffer
- * gets sent (or dropped).  If power is not ACTIVE, it will eventually
- * be, and transmits stay disabled until after it is.  This function
- * starts the transmit queue and is used in the power resume path after
- * power has become ACTIVE.
- */
-void ipa_power_modem_queue_wake(struct ipa *ipa)
-{
-	netif_wake_queue(ipa->modem_netdev);
-}
-
 static int ipa_power_retention_init(struct ipa_power *power)
 {
 	struct qmp *qmp = qmp_get(power->dev);

drivers/net/ipa/ipa_power.h

@@ -23,12 +23,6 @@ extern const struct dev_pm_ops ipa_pm_ops;
  */
 u32 ipa_core_clock_rate(struct ipa *ipa);
 
-/**
- * ipa_power_modem_queue_wake() - Possibly wake the modem netdev TX queue
- * @ipa:	IPA pointer
- */
-void ipa_power_modem_queue_wake(struct ipa *ipa);
-
 /**
  * ipa_power_retention() - Control register retention on power collapse
  * @ipa:	IPA pointer