[PATCH 6.8 253/715] wifi: mt76: mt7921: fix incorrect type conversion for CLC command

Sasha Levin
2024-03-24T22:39:07Z

From: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>

[ Upstream commit b6351ef9994ccb93b2447d396a0c517964dff2bc ]

clc->len is defined as 32 bits in length, so it must also be
operated on with 32 bits, not 16 bits.

Fixes: fa6ad88e023d ("wifi: mt76: mt7921: fix country count limitation for CLC")
Signed-off-by: Ming Yen Hsieh <mingyen.hsieh@mediatek.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312112104.Zkc3QUHr-lkp@intel.com/
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
index f5582477c7e4c..8b4ce32a2cd12 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -1272,7 +1272,7 @@ int __mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2,
.mtcl_conf = mt792x_acpi_get_mtcl_conf(&dev->phy, alpha2),
};
int ret, valid_cnt = 0;
- u16 buf_len = 0;
+ u32 buf_len = 0;
u8 *pos;

if (!clc)
@@ -1283,7 +1283,7 @@ int __mt7921_mcu_set_clc(struct mt792x_dev *dev, u8 *alpha2,
if (mt76_find_power_limits_node(&dev->mt76))
req.cap |= CLC_CAP_DTS_EN;

- buf_len = le16_to_cpu(clc->len) - sizeof(*clc);
+ buf_len = le32_to_cpu(clc->len) - sizeof(*clc);
pos = clc->data;
while (buf_len > 16) {
struct mt7921_clc_rule *rule = (struct mt7921_clc_rule *)pos;
--
2.43.0