From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 404B61D6BB; Fri, 12 Jun 2026 20:15:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781295333; cv=none; b=UIJES+fTyuz6dS9mLwuw1VUBSCljFAMc99/T3qS+o5YjiDl10ujaZvbuWlIaIs9s/DzrvauUMdG1i+VN1CYVJQ6Y5a3imTFkpHywvptvwYRQRzahFKPEM0k84JQKdIAwwM1UGpi+39skZJ7Jk3fmHSq9JKXafq723ACDXCilVB8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781295333; c=relaxed/simple; bh=9lsPaOAQQzgi9BEFCudf3/phOxp8fGkCLOaSD33Aexo=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=qD+KD8bG87wMOOWa+9U8OxMLsi6kwlC9jl/T6B+PHGvDFxZ3TRAdL6+ZthS939IfkfkDtvFpFMP7ChsCcM//ZI4DJh0YrH2xgDQbNkqdJoVfl0nf4VjnqwIqZe/pxBEqc6Y/mAj14xk3khVeVFkuSrHveukTnknbpVPe1YDJ7nw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=h+lSchtS; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="h+lSchtS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09EE01F000E9; Fri, 12 Jun 2026 20:15:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781295331; bh=JFLLIafIg2RN3lK3a2syVcO/tejcNuhPUiFDic1ff7A=; h=From:To:Cc:Subject:Date; b=h+lSchtSegzbf7cESfcBDapSMYwPK1AzgV95HWmnL6iyWpNumaMAVTn/QfoUe89Jn Xzrxic5EfnVQECpweIxMdCYGo6PCQpb7zWxJ4OiJmuLMnOJlab6dW9Ntc+m1O4kkDF regR/kyq/TzphCLoXxyZZ8B/rT55vNFLLcYerPPCLAUZ/7NBpaCcBQOXnJMdsgWA3r dsW0JV6mqyaRWB4bys9I4R6UupwC5AYISkHq2y6DxeR3f3wZHu+RUB5ALDrpml1Vfx 3w/pr9tVWgRcBr7Vqw2hqj+pCHxiZHsoSNiS8gweHT+EZipjbnb0d9VEldGIAycVKo Np5pzxYT8XYgg== From: Arnd Bergmann To: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , AngeloGioacchino Del Regno Cc: Arnd Bergmann , Shayne Chen , Sean Wang , Matthias Brugger , Rex Lu , Sujuan Chen , Benjamin Lin , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org Subject: [PATCH] [wireless-next v2] wifi: mt76: fix airoha_npu dependency tracking Date: Fri, 12 Jun 2026 22:13:19 +0200 Message-Id: <20260612201519.4054683-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Arnd Bergmann There is a new build failure with MT7996E=m MT76_CORE=y and NET_AIROHA_NPU=m: ld.lld: error: undefined symbol: airoha_npu_get ld.lld: error: undefined symbol: airoha_npu_put >>> referenced by npu.c >>> drivers/net/wireless/mediatek/mt76/npu.o:(mt76_npu_init) in archive vmlinux.a Fix this by reworking the dependency for the MT7996_NPU to only allow enabling that when mt76_core can link against the npu driver. To make sure this gets caught more easily in the future when additional mt76 variants need the same dependency, also turn CONFIG_MT76_NPU into a tristate symbol that has the same dependency. Fixes: 7fb554b1b623 ("wifi: mt76: Introduce the NPU generic layer") Acked-by: Lorenzo Bianconi Signed-off-by: Arnd Bergmann ---- v2: fix typo s/MT76/MT76_CORE/ --- drivers/net/wireless/mediatek/mt76/Kconfig | 4 ++-- drivers/net/wireless/mediatek/mt76/Makefile | 6 +++++- drivers/net/wireless/mediatek/mt76/mt76.h | 2 +- drivers/net/wireless/mediatek/mt76/mt7996/Kconfig | 2 +- 4 files changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/Kconfig b/drivers/net/wireless/mediatek/mt76/Kconfig index 502303622a53..2ca96e0527c0 100644 --- a/drivers/net/wireless/mediatek/mt76/Kconfig +++ b/drivers/net/wireless/mediatek/mt76/Kconfig @@ -38,8 +38,8 @@ config MT792x_USB select MT76_USB config MT76_NPU - bool - depends on MT76_CORE + tristate + depends on NET_AIROHA_NPU=y || MT76_CORE=NET_AIROHA_NPU source "drivers/net/wireless/mediatek/mt76/mt76x0/Kconfig" source "drivers/net/wireless/mediatek/mt76/mt76x2/Kconfig" diff --git a/drivers/net/wireless/mediatek/mt76/Makefile b/drivers/net/wireless/mediatek/mt76/Makefile index 1d42adfe8030..cacdd2b13d05 100644 --- a/drivers/net/wireless/mediatek/mt76/Makefile +++ b/drivers/net/wireless/mediatek/mt76/Makefile @@ -12,7 +12,11 @@ mt76-y := \ mmio.o util.o trace.o dma.o mac80211.o debugfs.o eeprom.o \ tx.o agg-rx.o mcu.o wed.o scan.o channel.o -mt76-$(CONFIG_MT76_NPU) += npu.o +ifdef CONFIG_MT76_NPU +# CONFIG_MT76_NPU is tristate to simplify dependency tracking, +# but it behaves as a bool symbol here. +mt76-y += npu.o +endif mt76-$(CONFIG_PCI) += pci.o mt76-$(CONFIG_NL80211_TESTMODE) += testmode.o diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 07955555f84d..60bd155cc7d5 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -1647,7 +1647,7 @@ int mt76_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, int mt76_testmode_set_state(struct mt76_phy *phy, enum mt76_testmode_state state); int mt76_testmode_alloc_skb(struct mt76_phy *phy, u32 len); -#ifdef CONFIG_MT76_NPU +#if IS_ENABLED(CONFIG_MT76_NPU) void mt76_npu_check_ppe(struct mt76_dev *dev, struct sk_buff *skb, u32 info); int mt76_npu_dma_add_buf(struct mt76_phy *phy, struct mt76_queue *q, diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/Kconfig b/drivers/net/wireless/mediatek/mt76/mt7996/Kconfig index 5503d03bf62c..5742bce12fbb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/Kconfig +++ b/drivers/net/wireless/mediatek/mt76/mt7996/Kconfig @@ -16,6 +16,6 @@ config MT7996E config MT7996_NPU bool "MT7996 (PCIe) NPU support" depends on MT7996E - depends on NET_AIROHA_NPU=y || MT7996E=NET_AIROHA_NPU + depends on NET_AIROHA_NPU=y || MT76_CORE=NET_AIROHA_NPU select MT76_NPU default n -- 2.39.5