From nobody Wed Jun 17 06:18:06 2026 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 CBEFD3C3C16 for ; Mon, 27 Apr 2026 13:18:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777295915; cv=none; b=XxnH+pAvYuDdso43hGpssGqRFzTJyjdFyu7Yk2WyvlRR7xf9iwBKQElfdEen6MH0UgGXZgs9hBUBJoB0MIgmyZMa8fx2jktcb5opVhrVEMYgGxXtgoqx+WzvRDcJK49Gr5XGhturx9C1/QkvIMJ3O9d6q5UVZPrnvP8AxZfi1T8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777295915; c=relaxed/simple; bh=qcZdDAZYcucxialNIwKMj7fy8LHoFUSymG/EEtHJ/94=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=t4tfVLS8XYPl4o25THNAYzZqlo2LR14vIMSbugQvzZsVLj0dFVC9C6DsHO19DE7rmkEHWu4uLYUVoEac6YxRJals7qetM/TpbAENm8hK/PjzngiBOz9qdAT8m0laGvTDLUVkgdTS9vyVs73J+c2UdyJoaj4Dr+EjA+IIVhg6lJM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=BPRs4Ri4; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=YzbXady9; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="BPRs4Ri4"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="YzbXady9" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 63RD5qPo665646 for ; Mon, 27 Apr 2026 13:18:33 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:date:from:message-id:mime-version :subject:to; s=qcppdkim1; bh=zkk15cs4HQuTAwcx0rFc4UdYWGmvwU5NjUq dwPsu1+U=; b=BPRs4Ri4eG80x+9Vb8VjxMScKoLcIBbFyXs1QYFv5rmc7ZCm9oC iCSuySrFoP5p2pKa0p79XuUVdB5Y5Wn0NtfQvl5qhwn2D8B9vnYP1jH7C5WDWhlx E1oaAYF/k0VL2h44fZZAOqvWMmpNtdiwmQm9B8lVX1LqTQ7J85d55HwEL1RQnpXx hsVd41VE3Zd46oFAwEX66HCoDihU02JheuJCr4X4s8rX40YyUYnB8zJ1+ggJRC4s xVqfJzTDE0t2v6DN+Rsw6ytWcK0JbC0M/pDNtCQ6eLcYszU52YnMKL7VH8QAhOTd 0HwLYyITCRfBW+56DkdkCx5vHQSC81T9YLQ== Received: from mail-vs1-f69.google.com (mail-vs1-f69.google.com [209.85.217.69]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4dt30n1hjm-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 27 Apr 2026 13:18:32 +0000 (GMT) Received: by mail-vs1-f69.google.com with SMTP id ada2fe7eead31-605e5d95cccso7779332137.3 for ; Mon, 27 Apr 2026 06:18:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1777295912; x=1777900712; 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=zkk15cs4HQuTAwcx0rFc4UdYWGmvwU5NjUqdwPsu1+U=; b=YzbXady9dRiFTM1GTJeDdDUDj7H0pI3PDyDxhm9D+5ichusIuyeN0EVxYqh69fJtPr +HPXpHXMFEhxT2C8bHZxqtdTgFTX08Ycoe2nMCT+FcJLPFex1JPZIsjh/tAST7tada53 Sno9TK0m4GU6zGxQJ2bUPNEp33A8YXGtCj2BD8AfCuf6YTyyv3hS2iyK1ESlpxE6NBea dRW/SHe1GLNHYdpCYm5YfOjqn4SM+B+3iXgEraCdsvf1KImU6d6C7s/P0+9RRr7fC53Q Zm/vvCkFbNSlMBdZ3Kxlo6wB6oXWBnCRLqiDIDJ14dqX2h9d8AAPPpwqtWHtlhzKk2eL 4HLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777295912; x=1777900712; 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=zkk15cs4HQuTAwcx0rFc4UdYWGmvwU5NjUqdwPsu1+U=; b=BI+4Gkxnce4Gj6j4puDde3++JuZtlVsJQcav9KyqxyydIXA8wynqhUaZK+LbYm+5Lp QQqAM+nBLbSJNEJhi/TtTwK+Yxcn+2wvlXez/6I22c4Qm5jb3EI7x1uEO1wl0MuyidyV iY1a/mIW9ApPXfVTORQZO0YNCDl9WeRcrhF9RleL4Hy7j9k1NeOFbbX8Jk4rKLHYQW1v toCQRIoh9iLeCH0+xfWxMOYnsrYqpJOEPeiNEOpuEfLcA0YS2xQVG3NlyEUypvR7Xzt0 Ah0SV5l47cyA8hTrbc2xK/fO87OEjkkjGU9W4Kh6XCtPlN+F4ia1YDb3qZbDB65KMGOB HqPw== X-Forwarded-Encrypted: i=1; AFNElJ+eeEuGeyvSQVGbFVTph4yQl3XsK3kXIDP9bHO+1GaqDFEImbfFQL8wYMprvtF5SIKNqp0vhBUdXssybE4=@vger.kernel.org X-Gm-Message-State: AOJu0YyYdjRHpFeVBlX09wpplGSUE1+PxUV3QDtKDHGD3KVLwG8P6r78 FLNxTb6CJRb/SiaxnVkvXR8tDCh+Wuzrj2KukrV1rZYjzCRsxZdYM2ekHIaL/WFkCvUz7avxHpX phZue8yu9FIdYdIHTi3c1d4bWXwQv0yABHzK6d/NdpEYimcIL0nVMK2r8X1+W6DzDi7Q= X-Gm-Gg: AeBDiesbUBNpvDcr+AIxv8/NuZ5+j4P1CetlFHUl61PPvIcaHkWVdHEnf3LiFeAawDR 3iCTLwZt7JQ5F0AO25KSWo3FpnqdYVyu+mK/HpzI/jwqQSO2dB1O+iPusjV4ckOImo2u9sYDK9K NVOYu4MNHnpsNHm2eZfHQMHjjWq/bhQnVfwc3glRnt/rZoSOAT9BBRNzz14XM2lntIzx1DxO/ZP u1kWU/zrGUugNm/NQ6Vl5Q2wGSdu3Q9zbeBYOGRxH5q/aJGBIa78ue0qZN2V4ZKhKyPHRL4T6pE r4cvPnLliv8lsCRWfnre/jJzxK2xumfqf55+sj1kaDagnH/931xdKtpxYjQO1gK6noHhTX8IGBX 4FgHO7G77k9eTj7PxGBsBNCexlzylbFAM6MEjNK0yFah1Y/1AGAqrGDpBLjQ0 X-Received: by 2002:a05:6102:dcd:b0:612:b3af:39f1 with SMTP id ada2fe7eead31-616f68d1bafmr21907525137.18.1777295911920; Mon, 27 Apr 2026 06:18:31 -0700 (PDT) X-Received: by 2002:a05:6102:dcd:b0:612:b3af:39f1 with SMTP id ada2fe7eead31-616f68d1bafmr21907497137.18.1777295911521; Mon, 27 Apr 2026 06:18:31 -0700 (PDT) Received: from brgl-qcom.home ([2a01:cb1d:dc:7e00:83be:e944:7b0e:ef3d]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a66533ff4sm112607135e9.6.2026.04.27.06.18.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Apr 2026 06:18:30 -0700 (PDT) From: Bartosz Golaszewski To: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich Cc: linux-acpi@vger.kernel.org, driver-core@lists.linux.dev, linux-kernel@vger.kernel.org, brgl@kernel.org, Bartosz Golaszewski Subject: [PATCH v2] software node: provide wrappers around kobject_get/put() Date: Mon, 27 Apr 2026 15:18:25 +0200 Message-ID: <20260427131825.15793-1-bartosz.golaszewski@oss.qualcomm.com> X-Mailer: git-send-email 2.47.3 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 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDI3MDE0MSBTYWx0ZWRfXz8xTQVPR9mpl mXr6uX35Mmvgz8Zv03YcF0A+08Cu4Qg3TMux+SOXm4PeU7/B9Y2H/2mxpAtksY6hHslz9dL1COd poghUDWS0bbHH7CY+havl2I5Wz+WyN5IiRfPwP4HpaYaAb56mSQpSp2fN3aSN1xfKLL4bqxtcKf zYWe77CzluYIGGNH6n3e8IAeown3yXOEfo8VbCnaoFTnzhJOdAYNrYXOWaIYqdx3JrWi7N+dZCS uoVU6B7DLIiloYKHSleIV2OFnXNpANIDyUoaRuT7DPyTFpvBEXYymjwrE2xhvjB5zpzMJOtrYxw sFLAFFCqwD0xdOQk0lzkK8HKUTEFIrR11n7QWKewqBN3EYChHVo00S1RdM+oklBHtf1k/ggVrpr /Y8zTT6Z5By7H3G9fmFGFT8kdC8vlRk1R4NFPJlwMTigDJQKVc9mO0fm1yzfCbIohAH00uqCBs/ oxAYYWyrGyo2O+smzmg== X-Proofpoint-GUID: ztBU8beyNAWsgcbIhcesTRSWpTvXsDfl X-Authority-Analysis: v=2.4 cv=efANubEH c=1 sm=1 tr=0 ts=69ef6228 cx=c_pps a=5HAIKLe1ejAbszaTRHs9Ug==:117 a=xqWC_Br6kY4A:10 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=bCnx2AzvNVCsJt7Mrv4A:9 a=gYDTvv6II1OnSo0itH1n:22 X-Proofpoint-ORIG-GUID: ztBU8beyNAWsgcbIhcesTRSWpTvXsDfl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-04-27_04,2026-04-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 adultscore=0 bulkscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 spamscore=0 phishscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604270141 Content-Type: text/plain; charset="utf-8" Make the code more readable by avoid constant dereferencing of the swnode's kobject when managing references. Provide wrappers that take struct swnode * as argument and make them hide that logic. Signed-off-by: Bartosz Golaszewski Reviewed-by: Rafael J. Wysocki (Intel) --- Changes in v2: - Make swnode_get() return the address of the swnode whose refcount it bumps and use that fact in software_node_get() drivers/base/swnode.c | 40 ++++++++++++++++++++++++---------------- 1 file changed, 24 insertions(+), 16 deletions(-) diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c index a19f8f722bc8e..869228a65cb36 100644 --- a/drivers/base/swnode.c +++ b/drivers/base/swnode.c @@ -374,20 +374,28 @@ EXPORT_SYMBOL_GPL(property_entries_free); /* -----------------------------------------------------------------------= --- */ /* fwnode operations */ =20 -static struct fwnode_handle *software_node_get(struct fwnode_handle *fwnod= e) +static struct swnode *swnode_get(struct swnode *swnode) { - struct swnode *swnode =3D to_swnode(fwnode); - kobject_get(&swnode->kobj); =20 + return swnode; +} + +static void swnode_put(struct swnode *swnode) +{ + kobject_put(&swnode->kobj); +} + +static struct fwnode_handle *software_node_get(struct fwnode_handle *fwnod= e) +{ + struct swnode *swnode =3D swnode_get(to_swnode(fwnode)); + return &swnode->fwnode; } =20 static void software_node_put(struct fwnode_handle *fwnode) { - struct swnode *swnode =3D to_swnode(fwnode); - - kobject_put(&swnode->kobj); + swnode_put(to_swnode(fwnode)); } =20 static bool software_node_property_present(const struct fwnode_handle *fwn= ode, @@ -493,7 +501,7 @@ software_node_get_named_child_node(const struct fwnode_= handle *fwnode, =20 list_for_each_entry(child, &swnode->children, entry) { if (!strcmp(childname, kobject_name(&child->kobj))) { - kobject_get(&child->kobj); + swnode_get(child); return &child->fwnode; } } @@ -737,7 +745,7 @@ software_node_find_by_name(const struct software_node *= parent, const char *name) swnode =3D kobj_to_swnode(k); if (parent =3D=3D swnode->node->parent && swnode->node->name && !strcmp(name, swnode->node->name)) { - kobject_get(&swnode->kobj); + swnode_get(swnode); break; } swnode =3D NULL; @@ -835,13 +843,13 @@ swnode_register(const struct software_node *node, str= uct swnode *parent, parent ? &parent->kobj : NULL, "node%d", swnode->id); if (ret) { - kobject_put(&swnode->kobj); + swnode_put(swnode); return ERR_PTR(ret); } =20 /* * Assign the flag only in the successful case, so - * the above kobject_put() won't mess up with properties. + * the above swnode_put() won't mess up with properties. */ swnode->allocated =3D allocated; =20 @@ -978,7 +986,7 @@ void fwnode_remove_software_node(struct fwnode_handle *= fwnode) if (!swnode) return; =20 - kobject_put(&swnode->kobj); + swnode_put(swnode); } EXPORT_SYMBOL_GPL(fwnode_remove_software_node); =20 @@ -1002,7 +1010,7 @@ int device_add_software_node(struct device *dev, cons= t struct software_node *nod =20 swnode =3D software_node_to_swnode(node); if (swnode) { - kobject_get(&swnode->kobj); + swnode_get(swnode); } else { ret =3D software_node_register(node); if (ret) @@ -1044,7 +1052,7 @@ void device_remove_software_node(struct device *dev) software_node_notify_remove(dev); =20 set_secondary_fwnode(dev, NULL); - kobject_put(&swnode->kobj); + swnode_put(swnode); } EXPORT_SYMBOL_GPL(device_remove_software_node); =20 @@ -1097,7 +1105,7 @@ void software_node_notify(struct device *dev) if (!swnode) return; =20 - kobject_get(&swnode->kobj); + swnode_get(swnode); ret =3D sysfs_create_link(&dev->kobj, &swnode->kobj, "software_node"); if (ret) return; @@ -1119,11 +1127,11 @@ void software_node_notify_remove(struct device *dev) =20 sysfs_remove_link(&swnode->kobj, dev_name(dev)); sysfs_remove_link(&dev->kobj, "software_node"); - kobject_put(&swnode->kobj); + swnode_put(swnode); =20 if (swnode->managed) { set_secondary_fwnode(dev, NULL); - kobject_put(&swnode->kobj); + swnode_put(swnode); } } =20 --=20 2.47.3