linux-kernel - Re: [PATCH 1/2] hwmon: (k10temp) Move the CCD limit info inside k10temp

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Date:   Tue, 23 Nov 2021 13:40:21 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Babu Moger <babu.moger@....com>, clemens@...isch.de,
        jdelvare@...e.com
Cc:     linux-hwmon@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] hwmon: (k10temp) Move the CCD limit info inside
 k10temp_data structure

On 11/23/21 1:16 PM, Babu Moger wrote:
> It seems appropriate to move the CCD specific information inside the
> k10temp_data structure.
> 

Why ? I don't see it used outside k10temp_get_ccd_support().

Guenter

> Signed-off-by: Babu Moger <babu.moger@....com>
> ---
> Note: Generated the patch on top of hwmon-next.
> 
>   drivers/hwmon/k10temp.c |   17 +++++++++++------
>   1 file changed, 11 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
> index 880990fa4795..bd436b380a02 100644
> --- a/drivers/hwmon/k10temp.c
> +++ b/drivers/hwmon/k10temp.c
> @@ -85,6 +85,7 @@ struct k10temp_data {
>   	u32 show_temp;
>   	bool is_zen;
>   	u32 ccd_offset;
> +	u32 ccd_limit;
>   };
>   
>   #define TCTL_BIT	0
> @@ -357,12 +358,12 @@ static const struct hwmon_chip_info k10temp_chip_info = {
>   };
>   
>   static void k10temp_get_ccd_support(struct pci_dev *pdev,
> -				    struct k10temp_data *data, int limit)
> +				    struct k10temp_data *data)
>   {
>   	u32 regval;
>   	int i;
>   
> -	for (i = 0; i < limit; i++) {
> +	for (i = 0; i < data->ccd_limit; i++) {
>   		amd_smn_read(amd_pci_dev_to_node_id(pdev),
>   			     ZEN_CCD_TEMP(data->ccd_offset, i), &regval);
>   		if (regval & ZEN_CCD_TEMP_VALID)
> @@ -411,14 +412,16 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>   		case 0x11:	/* Zen APU */
>   		case 0x18:	/* Zen+ APU */
>   			data->ccd_offset = 0x154;
> -			k10temp_get_ccd_support(pdev, data, 4);
> +			data->ccd_limit = 4;
> +			k10temp_get_ccd_support(pdev, data);
>   			break;
>   		case 0x31:	/* Zen2 Threadripper */
>   		case 0x60:	/* Renoir */
>   		case 0x68:	/* Lucienne */
>   		case 0x71:	/* Zen2 */
>   			data->ccd_offset = 0x154;
> -			k10temp_get_ccd_support(pdev, data, 8);
> +			data->ccd_limit = 8;
> +			k10temp_get_ccd_support(pdev, data);
>   			break;
>   		}
>   	} else if (boot_cpu_data.x86 == 0x19) {
> @@ -431,13 +434,15 @@ static int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id)
>   		case 0x21:		/* Zen3 Ryzen Desktop */
>   		case 0x50 ... 0x5f:	/* Green Sardine */
>   			data->ccd_offset = 0x154;
> -			k10temp_get_ccd_support(pdev, data, 8);
> +			data->ccd_limit = 8;
> +			k10temp_get_ccd_support(pdev, data);
>   			break;
>   		case 0x10 ... 0x1f:
>   		case 0x40 ... 0x4f:	/* Yellow Carp */
>   		case 0xa0 ... 0xaf:
>   			data->ccd_offset = 0x300;
> -			k10temp_get_ccd_support(pdev, data, 8);
> +			data->ccd_limit = 8;
> +			k10temp_get_ccd_support(pdev, data);
>   			break;
>   		}
>   	} else {
> 
>