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authorRyder Lee <ryder.lee@mediatek.com>2022-12-07 15:30:05 +0800
committerFelix Fietkau <nbd@nbd.name>2022-12-09 16:45:39 +0100
commitedb0406bda4629ef496f52eb11cbea7e92ed301b (patch)
tree8dbc25c8b292f25c419c1c096e2312d71473b965
parent063cca0252b46970e7e9ca423d5e930be3179aa1 (diff)
wifi: mt76: mt7915: fix unintended sign extension of mt7915_hw_queue_read()
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. Fixes: 776ec4e77aa6 ("mt76: mt7915: rework debugfs queue info") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Felix Fietkau <nbd@nbd.name>
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index a7fdcd1f3d98..5a46813a59ea 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -811,7 +811,7 @@ mt7915_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,