linux-kernel - Re: [PATCH] Removing Check Errors with checkpatch.pl, Converting from macro to function call

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Date:   Mon, 31 Jul 2017 17:25:29 -0700
From:   Joe Perches <joe@...ches.com>
To:     Ashish Kalra <eashishkalra@...il.com>, gregkh@...uxfoundation.org,
        wsa@...-dreams.de, driverdev-devel@...uxdriverproject.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Removing Check Errors with checkpatch.pl, Converting
 from macro to function call

On Mon, 2017-07-31 at 03:20 +0100, Ashish Kalra wrote:

You should not use checkpatch in the commit subject and
should use a commit message.

You also need a "Signed-off-by:" line with your legal
name and email address.

> diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
[]
> @@ -32,19 +31,39 @@
>  };
>  MODULE_DEVICE_TABLE(sdio, ks7010_sdio_ids);
>  
> -#define inc_txqhead(priv) \
> -	(priv->tx_dev.qhead = (priv->tx_dev.qhead + 1) % TX_DEVICE_BUFF_SIZE)
> -#define inc_txqtail(priv) \
> -	(priv->tx_dev.qtail = (priv->tx_dev.qtail + 1) % TX_DEVICE_BUFF_SIZE)
> -#define cnt_txqbody(priv) \
> -	(((priv->tx_dev.qtail + TX_DEVICE_BUFF_SIZE) - (priv->tx_dev.qhead)) % TX_DEVICE_BUFF_SIZE)
> -
> -#define inc_rxqhead(priv) \
> -	(priv->rx_dev.qhead = (priv->rx_dev.qhead + 1) % RX_DEVICE_BUFF_SIZE)
> -#define inc_rxqtail(priv) \
> -	(priv->rx_dev.qtail = (priv->rx_dev.qtail + 1) % RX_DEVICE_BUFF_SIZE)
> -#define cnt_rxqbody(priv) \
> -	(((priv->rx_dev.qtail + RX_DEVICE_BUFF_SIZE) - (priv->rx_dev.qhead)) % RX_DEVICE_BUFF_SIZE)
> +static int inc_txqhead(struct ks_wlan_private *priv)
> +{
> +	priv->tx_dev.qhead = (priv->tx_dev.qhead + 1) % TX_DEVICE_BUFF_SIZE;
> +	return 0;
> +}

These functions should return void

> +
> +static int inc_txqtail(struct ks_wlan_private *priv)
> +{
> +	priv->tx_dev.qtail = (priv->tx_dev.qtail + 1) % TX_DEVICE_BUFF_SIZE;
> +	return 0;
> +}
> +
> +static int inc_rxqtail(struct ks_wlan_private *priv)
> +{
> +	priv->rx_dev.qtail = (priv->rx_dev.qtail + 1) % RX_DEVICE_BUFF_SIZE;
> +	return 0;
> +}
> +
> +static int inc_rxqhead(struct ks_wlan_private *priv)
> +{
> +	priv->rx_dev.qhead = (priv->rx_dev.qhead + 1) % RX_DEVICE_BUFF_SIZE;
> +	return 0;
> +}
> +
> +static int cnt_rxqbody(struct ks_wlan_private *priv)
> +{
> +	return  (((priv->rx_dev.qtail + RX_DEVICE_BUFF_SIZE) - (priv->rx_dev.qhead)) % RX_DEVICE_BUFF_SIZE);
> +}

And these should return unsigned int

> +
> +static int cnt_txqbody(struct ks_wlan_private *priv)
> +{
> +	return (((priv->tx_dev.qtail + TX_DEVICE_BUFF_SIZE) - (priv->tx_dev.qhead)) % TX_DEVICE_BUFF_SIZE);
> +}