From: Ryder Lee ryder.lee@mediatek.com
[ Upstream commit 063cca0252b46970e7e9ca423d5e930be3179aa1 ]
In the expression "map[i].qid << 24" starts as u8, but is promoted to "signed int", then sign-extended to type "unsigned long", which is not intended. Cast to u32 to avoid the sign extension.
Reported-by: coverity-bot keescook+coverity-bot@chromium.org Addresses-Coverity-ID: 1527813 ("Integer handling issues") Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") Signed-off-by: Ryder Lee ryder.lee@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c index 99b23aef53a50..3d4fbbbcc2062 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c @@ -457,7 +457,7 @@ mt7996_hw_queue_read(struct seq_file *s, u32 size, if (val & BIT(map[i].index)) continue;
- ctrl = BIT(31) | (map[i].pid << 10) | (map[i].qid << 24); + ctrl = BIT(31) | (map[i].pid << 10) | ((u32)map[i].qid << 24); mt76_wr(dev, MT_FL_Q0_CTRL, ctrl);
head = mt76_get_field(dev, MT_FL_Q2_CTRL,