linux-kernel - Re: [PATCH v6 1/2] platform/x86: dell-smbios: Add helper for checking supported commands

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Date: Sat, 11 May 2024 10:13:23 -0500
From: "Limonciello, Mario" <mario.limonciello@....com>
To: Lyndon Sanche <lsanche@...deno.ca>
Cc: pali@...nel.org, W_Armin@....de, srinivas.pandruvada@...ux.intel.com,
 ilpo.jarvinen@...ux.intel.com, lkp@...el.com, hdegoede@...hat.com,
 Yijun.Shen@...l.com, Matthew Garrett <mjg59@...f.ucam.org>,
 Heiner Kallweit <hkallweit1@...il.com>, Randy Dunlap
 <rdunlap@...radead.org>, Vegard Nossum <vegard.nossum@...cle.com>,
 platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
 Dell.Client.Kernel@...l.com
Subject: Re: [PATCH v6 1/2] platform/x86: dell-smbios: Add helper for checking
 supported commands



On 5/10/2024 9:36 PM, Lyndon Sanche wrote:
> Add symbol to check if a specific class of smbios command is supported.
> 
> Signed-off-by: Lyndon Sanche <lsanche@...deno.ca>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
> ---
>   drivers/platform/x86/dell/dell-smbios-base.c | 6 ++++++
>   drivers/platform/x86/dell/dell-smbios.h      | 1 +
>   2 files changed, 7 insertions(+)
> 
> diff --git a/drivers/platform/x86/dell/dell-smbios-base.c b/drivers/platform/x86/dell/dell-smbios-base.c
> index e61bfaf8b5c4..6ae09d7f76fb 100644
> --- a/drivers/platform/x86/dell/dell-smbios-base.c
> +++ b/drivers/platform/x86/dell/dell-smbios-base.c
> @@ -350,6 +350,12 @@ void dell_laptop_call_notifier(unsigned long action, void *data)
>   }
>   EXPORT_SYMBOL_GPL(dell_laptop_call_notifier);
>   
> +bool dell_laptop_check_supported_cmds(u16 class)
> +{
> +	return da_supported_commands & (1 << class);
> +}
> +EXPORT_SYMBOL_GPL(dell_laptop_check_supported_cmds);
> +
>   static void __init parse_da_table(const struct dmi_header *dm)
>   {
>   	/* Final token is a terminator, so we don't want to copy it */
> diff --git a/drivers/platform/x86/dell/dell-smbios.h b/drivers/platform/x86/dell/dell-smbios.h
> index eb341bf000c6..63116671eada 100644
> --- a/drivers/platform/x86/dell/dell-smbios.h
> +++ b/drivers/platform/x86/dell/dell-smbios.h
> @@ -73,6 +73,7 @@ enum dell_laptop_notifier_actions {
>   int dell_laptop_register_notifier(struct notifier_block *nb);
>   int dell_laptop_unregister_notifier(struct notifier_block *nb);
>   void dell_laptop_call_notifier(unsigned long action, void *data);
> +bool dell_laptop_check_supported_cmds(u16 class);
>   
>   /* for the supported backends */
>   #ifdef CONFIG_DELL_SMBIOS_WMI