Re: patch tulip-natsemi-dp83840a-phy-fix.patch added to -mm tree

[Jeff Garzik]

akpm@xxxxxxxx wrote:
> +
> +					/* flush posted writes */
> +					ioread32(ioaddr + CSR15);
> +
> +					/* Sect 3.10.3 in DP83840A.pdf (p39) */
> +					udelay(500);
> +
> +					/* Section 4.2 in DP83840A.pdf (p43) */
> +					/* and IEEE 802.3 "22.2.4.1.1 Reset" */
> +					while (timeout-- &&
> +						(tulip_mdio_read (dev, phy_num, MII_BMCR) & BMCR_RESET))
> +						udelay(100);


Note that while the patch creates the correct behavior, the delays above 
occur inside spin_lock_irqsave() and/or timer context.

I have been to get HP to fix this patch's delay problem for -years-.

	Jeff


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