Re: [PATCH net-next 05/14] net: ethernet: mtk_eth_soc: reduce MDIO bus access latency

On Wed, Apr 21, 2021 at 09:09:05PM -0700, Ilya Lipnitskiy wrote:

From: Felix Fietkau <nbd@nbd.name>

usleep_range often ends up sleeping much longer than the 10-20us provided
as a range here. This causes significant latency in mdio bus acceses,

I found the same with the FEC driver, and make the same change.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
[Ilya: use readx_poll_timeout_atomic instead of cond_resched]
Signed-off-by: Ilya Lipnitskiy <redacted>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew