linux-kernel - Re: [PATCH] platform/x86: dell-wmi: Add a comment explaining the 0xb2 magic number

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Date:   Sat, 27 May 2017 12:51:36 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Darren Hart <dvhart@...radead.org>
Cc:     platform-driver-x86@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        Andy Shevchenko <andy@...radead.org>
Subject: Re: [PATCH] platform/x86: dell-wmi: Add a comment explaining the 0xb2 magic number

On Saturday 27 May 2017 07:15:28 Darren Hart wrote:
> From: Andy Lutomirski <luto@...nel.org>
> 
> The hotkey table is 0xb2, add a comment for clarity.
> 
> Suggested-by: Darren Hart <dvhart@...radead.org>
> Signed-off-by: Andy Lutomirski <luto@...nel.org>
> Cc: Matthew Garrett <mjg59@...f.ucam.org>
> Cc: "Pali Rohár" <pali.rohar@...il.com>
> Cc: Andy Shevchenko <andy@...radead.org>
> Signed-off-by: Darren Hart (VMware) <dvhart@...radead.org>
> ---
>  drivers/platform/x86/dell-wmi.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/platform/x86/dell-wmi.c
> b/drivers/platform/x86/dell-wmi.c index 8a64c79..24467b1 100644
> --- a/drivers/platform/x86/dell-wmi.c
> +++ b/drivers/platform/x86/dell-wmi.c
> @@ -449,6 +449,7 @@ static void __init handle_dmi_entry(const struct
> dmi_header *dm, if (results->err || results->keymap)
>  		return;		/* We already found the hotkey table. */
> 
> +	/* The Dell hotkey table is type 0xB2.  Scan until we find it. */
>  	if (dm->type != 0xb2)
>  		return;

Good. Reviewed-by: Pali Rohár <pali.rohar@...il.com>

(Maybe in future we should add a #define name for such magic constants)

-- 
Pali Rohár
pali.rohar@...il.com

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