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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250622110148.3108758-1-chenhuacai@loongson.cn>
Date: Sun, 22 Jun 2025 19:01:48 +0800
From: Huacai Chen <chenhuacai@...ngson.cn>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Sasha Levin <sashal@...nel.org>,
	Huacai Chen <chenhuacai@...nel.org>
Cc: Xuerui Wang <kernel@...0n.name>,
	stable@...r.kernel.org,
	ziyao@...root.org,
	linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH for 6.1/6.6] platform/loongarch: laptop: Fix build error due to backport

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(-)

diff --git a/drivers/platform/loongarch/loongson-laptop.c b/drivers/platform/loongarch/loongson-laptop.c
index 61b18ac206c9..5fcfa3a7970b 100644
--- a/drivers/platform/loongarch/loongson-laptop.c
+++ b/drivers/platform/loongarch/loongson-laptop.c
@@ -425,7 +425,7 @@ static int laptop_backlight_register(void)
 
 	props.max_brightness = status;
 	props.brightness = ec_get_brightness();
-	props.power = BACKLIGHT_POWER_ON;
+	props.power = FB_BLANK_UNBLANK;
 	props.type = BACKLIGHT_PLATFORM;
 
 	backlight_device_register("loongson_laptop",
-- 
2.47.1