linux-kernel - [PATCH] platform/x86: fix kconfig dependency warning for LG

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Date:   Tue, 15 Sep 2020 12:09:23 +0300
From:   Necip Fazil Yildiran <fazilyildiran@...il.com>
To:     andy@...radead.org
Cc:     matan@...alib.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, paul@...zz.com, jeho@...utexas.edu,
        Necip Fazil Yildiran <fazilyildiran@...il.com>
Subject: [PATCH] platform/x86: fix kconfig dependency warning for LG_LAPTOP

When LG_LAPTOP is enabled and NEW_LEDS is disabled, it results in the
following Kbuild warning:

WARNING: unmet direct dependencies detected for LEDS_CLASS
  Depends on [n]: NEW_LEDS [=n]
  Selected by [y]:
  - LG_LAPTOP [=y] && X86 [=y] && X86_PLATFORM_DEVICES [=y] && ACPI [=y] && ACPI_WMI [=y] && INPUT [=y]

The reason is that LG_LAPTOP selects LEDS_CLASS without depending on or
selecting NEW_LEDS while LEDS_CLASS is subordinate to NEW_LEDS.

Honor the kconfig menu hierarchy to remove kconfig dependency warnings.

Fixes: dbf0c5a6b1f8 ("platform/x86: Add LG Gram laptop special features driver")
Signed-off-by: Necip Fazil Yildiran <fazilyildiran@...il.com>
---
 drivers/platform/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 40219bba6801..81f6079d08e6 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1112,6 +1112,7 @@ config LG_LAPTOP
 	depends on ACPI_WMI
 	depends on INPUT
 	select INPUT_SPARSEKMAP
+	select NEW_LEDS
 	select LEDS_CLASS
 	help
 	 This driver adds support for hotkeys as well as control of keyboard
-- 
2.25.1