[PATCH net-next v2 1/4] net: macb: do not set again bit 0 of queue_mask
From: Claudiu Beznea
Date: Thu Jul 02 2020 - 05:06:15 EST
Bit 0 of queue_mask is set at the beginning of
macb_probe_queues() function. Do not set it again after reading
DGFG6 but instead use "|=" operator.
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
drivers/net/ethernet/cadence/macb_main.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 52582e8ed90e..1bc2810f3dc4 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3497,9 +3497,7 @@ static void macb_probe_queues(void __iomem *mem,
return;
/* bit 0 is never set but queue 0 always exists */
- *queue_mask = readl_relaxed(mem + GEM_DCFG6) & 0xff;
-
- *queue_mask |= 0x1;
+ *queue_mask |= readl_relaxed(mem + GEM_DCFG6) & 0xff;
for (hw_q = 1; hw_q < MACB_MAX_QUEUES; ++hw_q)
if (*queue_mask & (1 << hw_q))
--
2.7.4