From nobody Mon May 25 04:33:52 2026 Received: from mail-qk1-f169.google.com (mail-qk1-f169.google.com [209.85.222.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86F4027E049 for ; Tue, 19 May 2026 00:48:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779151690; cv=none; b=UPq+ypRL7o8qHMGbVpja/RJRiv89GzTinhwXqkVbl3mo6py1efij8g4zPjIbV4bZZIuCkI69cra7vT46aQOM7fhM+mnK4gU6oYWG5j6hP/hqwhKXNouNbPNC2TFd3MOYwOWfyZ6Wv1s/rDEoE0mPmnlZGc1UK7QSQcgaAHhzgHg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779151690; c=relaxed/simple; bh=4e3Ezfdf+RD04rbftjwBhZVIO+1SQ/EGEAk62cAphhU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=WUgWOMMLeSbI5M8iUvApO4jdEJRbkHEvkUV3r1ZoHBQuiSvY+HxF48qUs6a9LUwSuvFkxRjPu7VobzRv/rGb91TiFXhVmeA64Wy0PDycFuh/YMZvkeaI6qipqzFun+fcq0edNN+/sKfe/Diw+3AxHRvsWQBJTUS2w7ynrP9oIKo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=M8GD3Vfu; arc=none smtp.client-ip=209.85.222.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="M8GD3Vfu" Received: by mail-qk1-f169.google.com with SMTP id af79cd13be357-90d042fa745so546002885a.1 for ; Mon, 18 May 2026 17:48:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779151688; x=1779756488; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=8AmlmXFn8Usyb6ez/6xBhDBphIjUsjGq7jgSWzfB3dQ=; b=M8GD3VfuQwbkOHs2Ou/DUlN3w7a5PYFJe7519t98mLLrRlm1erjn0ujk4VcCRIy3Iv jvqhrCtTgXGROARROuvcScWdTkIqEek6Pder0Ktguct5rfm/DKQh0csjSuy+uqHppiAe 6HFMHzH8A/9Mul5s+YW6U1sGU9+kTdN94dn26yNnFM/sqJ4JswTfaovM8LyKUmmOoHsW Z2evTb6rX+jZ9kVkU03Vi398wubAT2dzFg/aKeAYBFG55X5l5H+u7fapss35C2gLYJz8 ARjXSKwv6y66W+5twp05GbWh5lCg7pBzARDRjNM9zGw1BRDW4JOVBXimLb9saV5g9qTW RtPA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779151688; x=1779756488; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=8AmlmXFn8Usyb6ez/6xBhDBphIjUsjGq7jgSWzfB3dQ=; b=S32ULsh7K4Et59Guz7iSXNDoZYBrPln7vqOVBM3WEtxyfS0wm2Icamn2TtIcofYvBe WVba/4xp2GlbKvS8JmLwRcVEJXivPlDUtwpkdosYWsXsIuAG+vFKaTPLdTTQvIMDfIjO r1IwZkDF+dzo/tXtWkDJ/A79BoPit6uT93kBDcPMgR9o+DaoHuHwUkBQ/wBEpyrLQpPv YlTn5f5anMkGlkhBRiWgxxTgPjnTQmrByPsJuhx+2SI4aSvFkUZegR2cYw4tClu2Zpa5 chp1npDEyGd0jbf4sKeO6SoP265esRysD8940HT8VyGpS0KPjO6GXr0x2Zni1N65Ywet VZ/w== X-Forwarded-Encrypted: i=1; AFNElJ+nXbGGR+JfVW+yOUNAZXkcjqHOSfOuL0nbXBO6Vuh6FBpWc6mZG0ek1p3POlgTPM3tiuDRvZlkK9RGhhI=@vger.kernel.org X-Gm-Message-State: AOJu0YxofzDSM86DrSCmvK+utbvdJkeXqkQ++aT1ElyAB3N7lrKwzmYj Wxlwt6EeACcROhMmvIc0a8ZzeaPC/71ovoXPRC8ACbq1Ya/M7S4UhmV9 X-Gm-Gg: Acq92OEJzQyQf0XctEP6Hfhv/s3rqoOaC3R06FvHL339EF/61LLxVohQifT2EUkl/l3 41CDG/gBIQrILZAIhIDt2+YMknmvrFpT7VYpwYYsuLjNn2t1q1ZIOfq79h3bOWcyt+eRf6A7dn8 Yt5O3lGfYUWgV4q4X2wyFXTY1ZiEAZpjO0eoV4P5HrQuhGPq3lQ99Bgu1Jipt18ExsDlDrynygn YG6SOP7qQJ0KXhulF4giHnuXGg7/x0Ddy5RbJ2DM6zHNt4H22N4FTm1XacWRpSeUSorYpkI02sv ZwGWGT+do0Ad9eTzzglSn3qhZtWw//OiCzB22mkPAI8Ae1AIuOzJw8r1JRSW/FKRLSFV9KP2ikU jVCx34p+Oq5GbJrhbB62HpC3IE6fFrToVt4qBmQqlK28NeCbiFsqTy5ZK1EJBKcr+poygOy/Ay4 xIYw/WWgmrvyfcrbyJxfzQrwC1jsnacz8GCS5+uNMxxWWt9Ork3oN6MASEWwc8fXnKTs3d+agux x149YxzNWD6VNcVycS+qcsRcaRw0HF6Wc8Mbz+kXKxs4Q== X-Received: by 2002:a05:620a:3705:b0:90d:3af3:2a61 with SMTP id af79cd13be357-911d05941e7mr2741939585a.47.1779151688279; Mon, 18 May 2026 17:48:08 -0700 (PDT) Received: from ryzen ([2601:644:8000:5b5d:7285:c2ff:fe45:8a32]) by smtp.gmail.com with ESMTPSA id af79cd13be357-910bcf3584esm1640093085a.34.2026.05.18.17.48.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 May 2026 17:48:07 -0700 (PDT) From: Rosen Penev To: linux-sound@vger.kernel.org Cc: Liam Girdwood , Peter Ujfalusi , Bard Liao , Ranjani Sridharan , Daniel Baluta , Kai Vehmanen , Pierre-Louis Bossart , Mark Brown , Jaroslav Kysela , Takashi Iwai , sound-open-firmware@alsa-project.org (moderated list:SOUND - SOUND OPEN FIRMWARE (SOF) DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] ASoC: SOF: Use flexible allocation for control data Date: Mon, 18 May 2026 17:47:49 -0700 Message-ID: <20260519004749.627581-1-rosenp@gmail.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allocate IPC3 and IPC4 channel control data with kzalloc_flex() for the trailing channel-value arrays instead of open-coding the struct_size() allocation. The existing scontrol size field continues to record the payload size used by the control paths. Assisted-by: Codex:GPT-5.5 Signed-off-by: Rosen Penev --- sound/soc/sof/ipc3-topology.c | 6 ++++-- sound/soc/sof/ipc4-topology.c | 6 ++++-- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c index 8c37c0657315..9597f619fbe4 100644 --- a/sound/soc/sof/ipc3-topology.c +++ b/sound/soc/sof/ipc3-topology.c @@ -1826,7 +1826,8 @@ static int sof_ipc3_control_load_volume(struct snd_so= f_dev *sdev, struct snd_sof /* init the volume get/put data */ scontrol->size =3D struct_size(cdata, chanv, scontrol->num_channels); =20 - scontrol->ipc_control_data =3D kzalloc(scontrol->size, GFP_KERNEL); + scontrol->ipc_control_data =3D kzalloc_flex(*cdata, chanv, + scontrol->num_channels); if (!scontrol->ipc_control_data) return -ENOMEM; =20 @@ -1857,7 +1858,8 @@ static int sof_ipc3_control_load_enum(struct snd_sof_= dev *sdev, struct snd_sof_c /* init the enum get/put data */ scontrol->size =3D struct_size(cdata, chanv, scontrol->num_channels); =20 - scontrol->ipc_control_data =3D kzalloc(scontrol->size, GFP_KERNEL); + scontrol->ipc_control_data =3D kzalloc_flex(*cdata, chanv, + scontrol->num_channels); if (!scontrol->ipc_control_data) return -ENOMEM; =20 diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 76812d8fb567..9fd04a7857f6 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -2863,7 +2863,8 @@ static int sof_ipc4_control_load_volume(struct snd_so= f_dev *sdev, struct snd_sof scontrol->size =3D struct_size(control_data, chanv, scontrol->num_channel= s); =20 /* scontrol->ipc_control_data will be freed in sof_control_unload */ - scontrol->ipc_control_data =3D kzalloc(scontrol->size, GFP_KERNEL); + scontrol->ipc_control_data =3D kzalloc_flex(*control_data, chanv, + scontrol->num_channels); if (!scontrol->ipc_control_data) return -ENOMEM; =20 @@ -2905,7 +2906,8 @@ static int sof_ipc4_control_load_enum(struct snd_sof_= dev *sdev, struct snd_sof_c scontrol->size =3D struct_size(control_data, chanv, scontrol->num_channel= s); =20 /* scontrol->ipc_control_data will be freed in sof_control_unload */ - scontrol->ipc_control_data =3D kzalloc(scontrol->size, GFP_KERNEL); + scontrol->ipc_control_data =3D kzalloc_flex(*control_data, chanv, + scontrol->num_channels); if (!scontrol->ipc_control_data) return -ENOMEM; =20 --=20 2.54.0