Re: [PATCH net-next v4 01/15] net: dsa: vsc73xx: use read_poll_timeout instead delay loop

[Linus Walleij]

On Tue, Feb 13, 2024 at 11:04 PM Pawel Dembicki <paweldembicki@xxxxxxxxx> wrote:


> This commit switches delay loop to read_poll_timeout macro during
> Arbiter empty check in adjust link function.
>
> As Russel King suggested:
>
> "This [change] avoids the issue that on the last iteration, the code reads
> the register, test it, find the condition that's being waiting for is
> false, _then_ waits and end up printing the error message - that last
> wait is rather useless, and as the arbiter state isn't checked after
> waiting, it could be that we had success during the last wait."
>
> It also remove one short msleep delay.
>
> Suggested-by: Russell King <linux@xxxxxxxxxxxxxxx>
> Signed-off-by: Pawel Dembicki <paweldembicki@xxxxxxxxx>
> Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>

Yours,
Linus Walleij