[PATCH net-next,v2] net: ethernet: mediatek: ppe: fix busy wait loop

[Andrew Lunn]

On Thu, Apr 15, 2021 at 05:11:48PM -0700, Ilya Lipnitskiy wrote:
> The intention is for the loop to timeout if the body does not succeed.
> The current logic calls time_is_before_jiffies(timeout) which is false
> until after the timeout, so the loop body never executes.
> 
> Fix by using readl_poll_timeout as a more standard and less error-prone
> solution.
> 
> Fixes: ba37b7caf1ed ("net: ethernet: mtk_eth_soc: add support for initializing the PPE")
> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy at gmail.com>
> Cc: Felix Fietkau <nbd at nbd.name>

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

    Andrew