From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794049207; b=LL9/pfKmWvAR7mQvc1HDsYAiCm2D5qGx0AUX3MqGNtZY5KuEUMD/xnUfZkLgU+EovUM+ klrOWMlqDdlr3G5VjrAXKUKlTnCPOsMTQk/qDc3v79zMWZNZQEC/mNI52KFs7BiHBA4FJ suEGHx+XsTvJjxTwjcYBV58TkbQjAXb4GFbVoDSTj95QUFCYNC235TNtfk6FvG52cvN6i xCoGDaRi+Wp2/bAqGwse2vK8wBxZt3yaTbaK6FNG8FWVVU+Sb1TyMKBd8xl3Ja458qdHy rGybDUO7BcSf/8aJjITKvzot92Rrtx6L/n0XvJqg2gjsCYOFxmfeOTedRZ7OfZmGRpQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794049207; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=kpFsFhGT+onI4UruuCX7jMijZkabn0pfml9X3/73G2w=; b=m8EKwtlQG4bacdtbxOmohWI5Forx5KCQwVdpW6sMUuXmAEIzY89/DfzQp7U8bjWEY1Jg 7CRegf47MaDZUWhko2DPyURXDgv3fGAySyvFvDpT4PgZKqwNpg9dXHZU/2BlJCg0SHuIy tE4IMDqnVImu9gRGgkFv8lbWpA3FROHimjO55W2UZBk8jR/tFmDN2bMHV7WbRPkfOTh9p ac/mgirfMe6B36YjepVBZMx8oYtkY9wnsoHdz51bxTRW53Dbqt3dVt+9SbUFcAp/nVB3Y BtWrmBEQsx5E0hnw3/lisGA/UckhK0jGgxCe+FGYApg0FhRVzxl3QElhsIDq3HRrHmg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=kHEOa6Tb; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A9274606D81A for ; Sat, 7 Nov 2026 11:00:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=kHEOa6Tb Received: by smtp.kernel.org (Postfix) with ESMTPSA id 20D291F0089F; Sat, 7 Nov 2026 11:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794049206; bh=kpFsFhGT+onI4UruuCX7jMijZkabn0pfml9X3/73G2w=; h=From:To:Cc:Subject:Date; b=kHEOa6TbVM9GyuuZy/b90DjTPbG5TvEsyZbPQF1dsGH0zqwz18kd7FKUcsuTVfdTv AsMG8zHswj23udYXCC2N5fuBXWvnlEfNU3884drC9tgqniTnQBuNW3FBIVN8NurNc8 lui6qYCElZNQA0oqj+jVxsVE2EcDnpMVwVlHPUgE04nDDo0lEc+ub+jEPq0+VMRtyr OiGakuLrXh5bJzqlmBd72If6UdzlWecLfDvacQpnprKrdWIEGLW7ARqLiu45GT8GtL pfYaW+MoZXuqrnN8kUXebODe1ld6wVtfs9tH2m/BlO/XMAgjomZON7dBQtC5DxS6af nvshR/u5ZyMVg== From: Sasha Levin To: david@ixit.cz, lee@kernel.org Cc: stable@vger.kernel.org Subject: FAILED: patch "[PATCH] mfd: wcd934x: set DMA mask on parent to silence "DMA mask not set"" failed to apply to 5.15-stable tree Date: Sat, 7 Nov 2026 06:00:04 -0500 Message-ID: <20261107060004-failed-5.15-b296be1dc008@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x b296be1dc008fe3a536341afae01f66bb302e67f # git commit -s git send-email --to '' --in-reply-to '20261107060004-failed-5.15-b296be1dc008@kernel.org' --subject-prefix 'PATCH 5.15.y' 'HEAD^..' Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From b296be1dc008fe3a536341afae01f66bb302e67f Mon Sep 17 00:00:00 2001 From: David Heidelberg Date: Thu, 3 Sep 2026 16:42:05 +0200 Subject: [PATCH] mfd: wcd934x: set DMA mask on parent to silence "DMA mask not set" The wcd934x MFD parent (a slim_device) never initializes its dma_mask/coherent_dma_mask. When the DT-aware children pass through of_dma_configure() this triggers the "DMA mask not set" warning for each child. Cc: stable@vger.kernel.org Fixes: f959dcd6ddfd ("dma-direct: Fix potential NULL pointer dereference") Assisted-by: tencent:hy3 Signed-off-by: David Heidelberg Link: https://patch.msgid.link/20260903-wcd-dma-v2-1-189cff560a28@ixit.cz Signed-off-by: Lee Jones --- drivers/mfd/wcd934x.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mfd/wcd934x.c b/drivers/mfd/wcd934x.c index 3c3080e8c8cf7..7bea64fc09562 100644 --- a/drivers/mfd/wcd934x.c +++ b/drivers/mfd/wcd934x.c @@ -2,6 +2,7 @@ // Copyright (c) 2019, Linaro Limited #include +#include #include #include #include @@ -217,6 +218,11 @@ static int wcd934x_slim_probe(struct slim_device *sdev) struct gpio_desc *reset_gpio; int ret; + ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); + if (ret) + return dev_err_probe(dev, ret, + "Failed to set DMA mask\n"); + ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL); if (!ddata) return -ENOMEM; -- 2.53.0