From patchwork Thu Jun 5 11:14:16 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 894397 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 5E5FB1F4631 for ; Thu, 5 Jun 2025 11:18:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749122306; cv=none; b=UZu+ARLADmvWH8rCi0KaAG/qHZZB3jwNRcG3eKIjwQcFcXx+jeuSZEV9UI+9ryABwcLiu0zjoJYbYuGZ4FuNky2n5p2+Jn6+2SIGv/8t0zckko4YnlzZZt3aPYWONBgJO/NMNNPLfRpFnlLHdm1qdQ7YldoKRYSUfdq2yYUZAeo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749122306; c=relaxed/simple; bh=oBSODQMsy1/d5/U6vE4OfmyUvi5gh7AawwYdZIj6y5E=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Ebsaa//HiCkeuvESRIClotwCIp4oIJAcc33j6DGHezNQ6UNMGa6UiPXO3+REkwGl3v41SpMGbj191eqg/vIqkTxyoh2qTJBfGCZbdYtfoCegBKI9c/QM8KOgfFdqxHr3SDKyRuVPi4s5tpjmtxL+NQ/WIuFCYlQ5oVTMblwvaHY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MycVClR7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MycVClR7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58E3CC4CEEB; Thu, 5 Jun 2025 11:18:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749122305; bh=oBSODQMsy1/d5/U6vE4OfmyUvi5gh7AawwYdZIj6y5E=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=MycVClR7i4Ggd4SLTz8CmzHwMSEzB/HiZKzqwvdl99ZbjSM08LzPexT01HXjeaZJY xNCuc+03lYp4Jiuyo5xv2c7KYe+ycdRNClQAnPkiha/9mmdDB0cZzejavJyNe0eU/o EXcxzMjitXzc6/qOX+ioylo18VrsukR0LzacOPfUAqLuiYpavBeW7e2oYcX+0nTPkH ZfTycHPsEREIiGXDiNPaglCh+/imgXwfZwZZZFhogFHU2Lak6d1Pj/7lTqFqxk2edL kDSlIrGtgqe+UpkPuzstMcQB0TAXL4VytFnGA3AKXhka3pKq+/RxgBAZ0w3ie9uk50 W39gFTtib4aQg== From: Lorenzo Bianconi Date: Thu, 05 Jun 2025 13:14:16 +0200 Subject: [PATCH mt76 1/5] wifi: mt76: Assume __mt76_connac_mcu_alloc_sta_req runs in atomic context Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250605-mt7996-sleep-while-atomic-v1-1-d46d15f9203c@kernel.org> References: <20250605-mt7996-sleep-while-atomic-v1-0-d46d15f9203c@kernel.org> In-Reply-To: <20250605-mt7996-sleep-while-atomic-v1-0-d46d15f9203c@kernel.org> To: Felix Fietkau , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Bo Jiao , Peter Chiu Cc: linux-wireless@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Ben Greear , Lorenzo Bianconi X-Mailer: b4 0.14.2 Rely on GFP_ATOMIC flag in __mt76_connac_mcu_alloc_sta_req since it can run in atomic context. This is a preliminary patch to fix a 'sleep while atomic' issue in mt7996_mac_sta_rc_work(). Fixes: 0762bdd30279 ("wifi: mt76: mt7996: rework mt7996_mac_sta_rc_work to support MLO") Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index cb13d0a768789af956f810e5af19507e436a449a..fa08e952dffa9d6e623a1f6819f136be3a5a0c76 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -287,7 +287,7 @@ __mt76_connac_mcu_alloc_sta_req(struct mt76_dev *dev, struct mt76_vif_link *mvif mt76_connac_mcu_get_wlan_idx(dev, wcid, &hdr.wlan_idx_lo, &hdr.wlan_idx_hi); - skb = mt76_mcu_msg_alloc(dev, NULL, len); + skb = __mt76_mcu_msg_alloc(dev, NULL, len, len, GFP_ATOMIC); if (!skb) return ERR_PTR(-ENOMEM);