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net: dsa: mv88e6xxx: Fix sparse warnings from GENMASK

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Oddly, GENMASK() requires signed bit numbers, so that it can compare
them for < 0. If passed an unsigned type, we get warnings about the
test never being true.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2020-07-05 21:38:07 +02:00 • committed by David S. Miller
parent 7680b8f15e
commit f1931164f0
1 changed files with 2 additions and 2 deletions
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4
drivers/net/dsa/mv88e6xxx/chip.h
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@ -167,7 +167,7 @@ struct mv88e6xxx_irq {
u16 masked;
struct irq_chip chip;
struct irq_domain *domain;
unsigned int nirqs;
int nirqs;
};
/* state flags for mv88e6xxx_port_hwtstamp::state */
@ -654,7 +654,7 @@ static inline unsigned int mv88e6xxx_num_ports(struct mv88e6xxx_chip *chip)
static inline u16 mv88e6xxx_port_mask(struct mv88e6xxx_chip *chip)
{
return GENMASK(mv88e6xxx_num_ports(chip) - 1, 0);
return GENMASK((s32)mv88e6xxx_num_ports(chip) - 1, 0);
}
static inline unsigned int mv88e6xxx_num_gpio(struct mv88e6xxx_chip *chip)