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net: dsa: mv88e6xxx: fix SMI bit checking

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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: e7ba0fad9c ("net: dsa: mv88e6xxx: refine SMI support")
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vivien Didelot 2019-08-09 18:47:58 -04:00 committed by David S. Miller
parent 2ad4da776b
commit 1c6463b6fc
1 changed files with 1 additions and 1 deletions
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2
drivers/net/dsa/mv88e6xxx/smi.c
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@ -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;
}