linux-kernel - Re: [PATCH for 6.1/6.6] platform/loongarch: laptop: Fix build error due to backport

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Message-ID: <2025062206-roundish-thumb-a20e@gregkh>
Date: Sun, 22 Jun 2025 15:10:16 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Huacai Chen <chenhuacai@...ngson.cn>
Cc: Sasha Levin <sashal@...nel.org>, Huacai Chen <chenhuacai@...nel.org>,
	Xuerui Wang <kernel@...0n.name>, stable@...r.kernel.org,
	ziyao@...root.org, linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev
Subject: Re: [PATCH for 6.1/6.6] platform/loongarch: laptop: Fix build error
 due to backport

On Sun, Jun 22, 2025 at 07:01:48PM +0800, Huacai Chen wrote:
> In 6.1/6.6 there is no BACKLIGHT_POWER_ON definition so a build error
> occurs due to recently backport:
> 
>   CC      drivers/platform/loongarch/loongson-laptop.o
> drivers/platform/loongarch/loongson-laptop.c: In function 'laptop_backlight_register':
> drivers/platform/loongarch/loongson-laptop.c:428:23: error: 'BACKLIGHT_POWER_ON' undeclared (first use in this function)
>   428 |         props.power = BACKLIGHT_POWER_ON;
>       |                       ^~~~~~~~~~~~~~~~~~
> 
> Use FB_BLANK_UNBLANK instead which has the same meaning.
> 
> Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> ---
>  drivers/platform/loongarch/loongson-laptop.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

What commit id is this fixing?

thanks,

greg k-h