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authorEmery Hsin <emery.hsin@mediatek.com>2026-06-12 15:53:37 +0800
committerFelix Fietkau <nbd@nbd.name>2026-07-31 12:25:37 +0000
commitf26fda0c6ae2fb2347c16e65d158d9cc9e697751 (patch)
tree8c136f7f6f48cee66a4408199778cc3f79807087
parentd93e31ba9fe20a6c8b065838134eaac36f06d6d1 (diff)
downloadlinux-f26fda0c6ae2fb2347c16e65d158d9cc9e697751.tar.gz
linux-f26fda0c6ae2fb2347c16e65d158d9cc9e697751.zip
wifi: mt76: mt7925: align scan IE and EFUSE TLV lengths to 4 bytes for MT7928
MT7928 firmware requires 4-byte aligned TLV payloads. Round up UNI_SCAN_IE allocation with ALIGN(..., 4) and track padded length. Signed-off-by: Xiong <xiong.huang@mediatek.com> Signed-off-by: Emery Hsin <emery.hsin@mediatek.com> Link: https://patch.msgid.link/20260612075339.2578327-3-jb.tsai@mediatek.com Signed-off-by: Felix Fietkau <nbd@nbd.name>
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7925/mcu.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
index 6c7fae71fe5b..bc6b6fc2d6f5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7925/mcu.c
@@ -1581,7 +1581,8 @@ int mt7925_mcu_set_eeprom(struct mt792x_dev *dev)
.tag = cpu_to_le16(UNI_EFUSE_BUFFER_MODE),
.len = cpu_to_le16(sizeof(req) - 4),
.buffer_mode = EE_MODE_EFUSE,
- .format = EE_FORMAT_WHOLE
+ .format = EE_FORMAT_WHOLE,
+ .buf_len = 0
};
return mt76_mcu_send_and_get_msg(&dev->mt76, MCU_UNI_CMD(EFUSE_CTRL),
@@ -3037,11 +3038,11 @@ mt7925_mcu_build_scan_ie_tlv(struct mt76_dev *mdev,
struct ieee80211_scan_ies *scan_ies)
{
u32 max_len = sizeof(struct scan_ie_tlv) + MT76_CONNAC_SCAN_IE_LEN;
+ u32 ies_len, alloc_len;
struct scan_ie_tlv *ie;
enum nl80211_band i;
struct tlv *tlv;
const u8 *ies;
- u16 ies_len;
for (i = 0; i <= NL80211_BAND_6GHZ; i++) {
if (i == NL80211_BAND_60GHZ)
@@ -3053,11 +3054,16 @@ mt7925_mcu_build_scan_ie_tlv(struct mt76_dev *mdev,
if (!ies || !ies_len)
continue;
- if (ies_len > max_len)
+ if (is_mt7928(mdev))
+ alloc_len = ALIGN(sizeof(*ie) + ies_len, 4);
+ else
+ alloc_len = sizeof(*ie) + ies_len;
+
+ if (alloc_len > max_len)
return;
tlv = mt76_connac_mcu_add_tlv(skb, UNI_SCAN_IE,
- sizeof(*ie) + ies_len);
+ alloc_len);
ie = (struct scan_ie_tlv *)tlv;
memcpy(ie->ies, ies, ies_len);
@@ -3075,7 +3081,7 @@ mt7925_mcu_build_scan_ie_tlv(struct mt76_dev *mdev,
break;
}
- max_len -= (sizeof(*ie) + ies_len);
+ max_len -= alloc_len;
}
}