Re: [PATCH net-next 1/2] net: phy: motorcomm: Add support for PHY LEDs on YT8521

[Jijie Shao]

on 2025/8/11 23:01, Russell King (Oracle) wrote:
> On Thu, Aug 07, 2025 at 11:50:06AM +0200, Heiko Stübner wrote:
> > > +static int yt8521_led_hw_control_get(struct phy_device *phydev, u8 index,
> > > +				     unsigned long *rules)
> > > +{
> > > +	int val;
> > > +
> > > +	if (index >= YT8521_MAX_LEDS)
> > > +		return -EINVAL;
> > > +
> > > +	val = ytphy_read_ext(phydev, YT8521_LED0_CFG_REG + index);
> > > +	if (val < 0)
> > > +		return val;
> > > +
> > > +	if (val & YT8521_LED_TXACT_BLK_EN)
> > > +		set_bit(TRIGGER_NETDEV_TX, rules);
> > > +
> > > +	if (val & YT8521_LED_RXACT_BLK_EN)
> > > +		set_bit(TRIGGER_NETDEV_RX, rules);
> > > +
> > > +	if (val & YT8521_LED_FDX_ON_EN)
> > > +		set_bit(TRIGGER_NETDEV_FULL_DUPLEX, rules);
> > > +
> > > +	if (val & YT8521_LED_HDX_ON_EN)
> > > +		set_bit(TRIGGER_NETDEV_HALF_DUPLEX, rules);
> > > +
> > > +	if (val & YT8521_LED_GT_ON_EN)
> > > +		set_bit(TRIGGER_NETDEV_LINK_1000, rules);
> > > +
> > > +	if (val & YT8521_LED_HT_ON_EN)
> > > +		set_bit(TRIGGER_NETDEV_LINK_100, rules);
> > > +
> > > +	if (val & YT8521_LED_BT_ON_EN)
> > > +		set_bit(TRIGGER_NETDEV_LINK_10, rules);
> Sorry, I don't have the original to hand.
>
> Please use __set_bit() where the more expensive atomic operation that
> set_bit() gives is not necessary.

Okay, got it.