linux-kernel - Re: [PATCH v2 1/2] i40e: Add helper for VF inited state check with timeout

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Message-ID: <20230712123613.20a98732@kernel.org>
Date:   Wed, 12 Jul 2023 12:36:13 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Ivan Vecera <ivecera@...hat.com>
Cc:     netdev@...r.kernel.org, Simon Horman <simon.horman@...igine.com>,
        Rafal Romanowski <rafal.romanowski@...el.com>,
        Leon Romanovsky <leon@...nel.org>, Ma Yuying <yuma@...hat.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        intel-wired-lan@...ts.osuosl.org (moderated list:INTEL ETHERNET DRIVERS),
        linux-kernel@...r.kernel.org (open list)
Subject: Re: [PATCH v2 1/2] i40e: Add helper for VF inited state check with
 timeout

On Wed, 12 Jul 2023 15:32:46 +0200 Ivan Vecera wrote:
> +	for (i = 0; i < 15; i++)
> +		if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states))
> +			msleep(20);
> +
> +	if (!test_bit(I40E_VF_STATE_INIT, &vf->vf_states)) {
> +		dev_err(&vf->pf->pdev->dev,
> +			"VF %d still in reset. Try again.\n", vf->vf_id);
> +		return false;

I like my loop more but if you want to have the msleep() indented just
add an else { return true; } branch. Take advantage of the fact this is
a function, now, and you can just return.