From 1c6463b6fc36f2261df1a68ee13a5ebd980914b1 Mon Sep 17 00:00:00 2001 From: Vivien Didelot Date: Fri, 9 Aug 2019 18:47:58 -0400 Subject: [PATCH] net: dsa: mv88e6xxx: fix SMI bit checking The current mv88e6xxx_smi_direct_wait function is only used to check the 16th bit of the (16-bit) SMI Command register. But the bit shift operation is not enough if we eventually use this function to check other bits, thus replace it with a mask. Fixes: e7ba0fad9c53 ("net: dsa: mv88e6xxx: refine SMI support") Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/smi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/mv88e6xxx/smi.c b/drivers/net/dsa/mv88e6xxx/smi.c index 5fc78a063843..18e87a5a20a3 100644 --- a/drivers/net/dsa/mv88e6xxx/smi.c +++ b/drivers/net/dsa/mv88e6xxx/smi.c @@ -64,7 +64,7 @@ static int mv88e6xxx_smi_direct_wait(struct mv88e6xxx_chip *chip, if (err) return err; - if (!!(data >> bit) == !!val) + if (!!(data & BIT(bit)) == !!val) return 0; } -- 2.39.5