From: Arnd Bergmann <arnd@kernel.org>
To: Ping-Ke Shih <pkshih@realtek.com>,
Johnson Tsai <wenjie.tsai@realtek.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Bitterblue Smith <rtl8821cerfe2@gmail.com>,
linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] wifi: rtw89: fix LED dependencies
Date: Tue, 29 Sep 2026 12:41:52 +0200 [thread overview]
Message-ID: <20260929104159.3236854-1-arnd@kernel.org> (raw)
From: Arnd Bergmann <arnd@arndb.de>
The rtw89 driver fails to build when multicolor LED support is in
a loadable module but the rtw89 driver is built-in:
aarch64-linux-ld: drivers/net/wireless/realtek/rtw89/led_mc.o: in function `rtw89_led_mc_brightness_set':
led_mc.c:(.text+0x50): undefined reference to `led_mc_calc_color_components'
aarch64-linux-ld: drivers/net/wireless/realtek/rtw89/led_mc.o: in function `rtw89_led_mc_init':
led_mc.c:(.text+0x434): undefined reference to `led_classdev_multicolor_register_ext'
The problem is a misunderstanding of how Kconfig dependencies
work, as the 'imply' keyword is not sufficient to enable a
a user-visible dependency, and the boolean 'RTW89_LEDS_MC'
symbol cannot determine whether linking against the MC code is
valid.
Address this by using the correct construct to determing whether
linking agains the MAC80211_LEDS and LEDS_CLASS_MULTICOLOR
code is possible, respectively.
Fixes: d910631ff352 ("wifi: rtw89: add LED support to reflect the wireless association status")
Fixes: 721d90c8509a ("wifi: rtw89: add multicolor LED support for RTL8852CU valve board")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/net/wireless/realtek/rtw89/Kconfig | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw89/Kconfig b/drivers/net/wireless/realtek/rtw89/Kconfig
index 7c678dd1f6b3..4000ae344544 100644
--- a/drivers/net/wireless/realtek/rtw89/Kconfig
+++ b/drivers/net/wireless/realtek/rtw89/Kconfig
@@ -208,15 +208,13 @@ config RTW89_DEBUGFS
config RTW89_LEDS
bool
depends on RTW89_CORE
- depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211
- imply MAC80211_LEDS
+ depends on MAC80211_LEDS=y || MAC80211_LEDS=RTW89_CORE
default y
config RTW89_LEDS_MC
bool
depends on RTW89_LEDS
- depends on LEDS_CLASS_MULTICOLOR
- imply LEDS_TRIGGER_TIMER
+ depends on LEDS_CLASS_MULTICOLOR=y || LEDS_CLASS_MULTICOLOR=RTW89_CORE
default y
endif
--
2.53.0
next reply other threads:[~2026-09-29 10:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-29 10:41 Arnd Bergmann [this message]
2026-09-30 0:28 ` [PATCH] wifi: rtw89: fix LED dependencies Ping-Ke Shih
2026-09-30 7:52 ` Arnd Bergmann
2026-10-02 0:22 ` Ping-Ke Shih
2026-10-02 6:11 ` Arnd Bergmann
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