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Re: [PATCH] wifi: mt76: mt7915: workaround dubious x | !y warning

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On 21/03/2024 16:34, Kalle Valo wrote:
Sparse warns:

drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c:526:9: warning: dubious: x | !y

Workaround it by using the '?' operator. Compile tested only.

Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
---
  drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index 450f4d221184..3f47aafb1a6c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -523,7 +523,7 @@ mt7915_fw_debug_wm_set(void *data, u64 val)
/* WM CPU info record control */
  	mt76_clear(dev, MT_CPU_UTIL_CTRL, BIT(0));
-	mt76_wr(dev, MT_DIC_CMD_REG_CMD, BIT(2) | BIT(13) | !dev->fw.debug_wm);
+	mt76_wr(dev, MT_DIC_CMD_REG_CMD, BIT(2) | BIT(13) | dev->fw.debug_wm ? 0 : BIT(0));

clang says "bitwise or with non-zero value always evaluates to true [-Wtautological-bitwise-compare]"

It needs some parenthesis.





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