recipes-wifi/linux-mt76/files/patches-3.x/2006-wifi-mt76-mt7996-add-rro-elem-free-when-rmmod-wifi-m.patch

From a2bd3309c6c1ea4d63d8ac3fc066914186740ab5 Mon Sep 17 00:00:00 2001
From: mtk27745 <rex.lu@mediatek.com>
Date: Fri, 6 Oct 2023 15:48:37 +0800
Subject: [PATCH 70/98] wifi: mt76: mt7996: add rro elem free when rmmod wifi
 module

---
 mt7996/init.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/mt7996/init.c b/mt7996/init.c
index 5627605..1ece390 100644
--- a/mt7996/init.c
+++ b/mt7996/init.c
@@ -670,6 +670,38 @@ void mt7996_wfsys_reset(struct mt7996_dev *dev)
 	msleep(20);
 }
 
+static int mt7996_rro_free(struct mt7996_dev *dev)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(dev->wed_rro.ba_bitmap); i++) {
+		if (dev->wed_rro.ba_bitmap[i].ptr)
+			dmam_free_coherent(dev->mt76.dma_dev,
+					   MT7996_RRO_BA_BITMAP_CR_SIZE,
+					   dev->wed_rro.ba_bitmap[i].ptr,
+					   dev->wed_rro.ba_bitmap[i].phy_addr);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(dev->wed_rro.addr_elem); i++) {
+		if (dev->wed_rro.addr_elem[i].ptr) {
+			dmam_free_coherent(dev->mt76.dma_dev,
+					   MT7996_RRO_WINDOW_MAX_SIZE *
+					   sizeof(struct mt7996_wed_rro_addr),
+					   dev->wed_rro.addr_elem[i].ptr,
+					   dev->wed_rro.addr_elem[i].phy_addr);
+		}
+	}
+
+	if (dev->wed_rro.session.ptr)
+		dmam_free_coherent(dev->mt76.dma_dev,
+				   MT7996_RRO_WINDOW_MAX_LEN *
+				   sizeof(struct mt7996_wed_rro_addr),
+				   dev->wed_rro.session.ptr,
+				   dev->wed_rro.session.phy_addr);
+
+	return 0;
+}
+
 static int mt7996_wed_rro_init(struct mt7996_dev *dev)
 {
 #ifdef CONFIG_NET_MEDIATEK_SOC_WED
@@ -1295,6 +1327,8 @@ void mt7996_unregister_device(struct mt7996_dev *dev)
 	mt7996_coredump_unregister(dev);
 	mt76_unregister_device(&dev->mt76);
 	mt7996_mcu_exit(dev);
+	if (mtk_wed_device_active(&dev->mt76.mmio.wed) && dev->has_rro)
+		mt7996_rro_free(dev);
 	mt7996_tx_token_put(dev);
 	mt7996_dma_cleanup(dev);
 	tasklet_disable(&dev->mt76.irq_tasklet);
-- 
2.18.0