From nobody Tue Dec 2 02:29:14 2025 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 797CF311C2A; Thu, 20 Nov 2025 10:27:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763634470; cv=none; b=Qq8nbH56dlcv/r30v2NKNt/cfUUP5ED6m6XQ1jk23l53/gvCnF8ERMaeIrIuNgCHORJc2jAjuAFjYo53M37e7LkGuyaPOdkalbUrNZ4J/rp0NwaF90B4yb4PJuN1wUJRpM8U+YsGJvktjOLw8Mf0JStlkw/1koy85cu3LjoW/jI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763634470; c=relaxed/simple; bh=oAgeMxQ+c0k5R8Zm6rJJS8z3j6np1W6NcBM2vBaJ7pk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=uAikuwhgaufpfGPemr918ljqldyFeLzAh4rGTskkSDChhXokjJLUkXmU7DBjGS5Zhb7l4XycsDJMjoMCmeFfWcAwJFdVePwbI5UpzWuHphf9V4ZOP3K8V01xSGsiOAbSE1khPibrSz1jagOM4geBW7jGHiDgYxiNIBUpVXy7Yt0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=Kn4/coC1; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="Kn4/coC1" Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5AJLl0J3021706; Thu, 20 Nov 2025 10:27:32 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=6T7wC7 9xoMCQ2U7t7iJ+GPmWhQ4lqDODQNt2r7sPG3Q=; b=Kn4/coC18hWw1M5ffIFPha 6K+7GJ2zFFf0BCceyL+ID+7NzGbfR9Jp1n4b99s3qAHQuL1XvQy5zlJkeWQFvxrr FvCdQjm1YPLkPnD6lSWtI0C7q0PEOmeaOhn3B8Czii3lD97mpa3DmL3YjYSXF4+Z gE3+4PoK9IJWenHiAwVHCl8QeBxGDoYBSBtVn8iJEVs5IKCHBnak4LR6K1dfXitf lCMd/ya1g94VjhnpXYMraGrYG+5gVUuQEBPBrOZfE7QVLZN0g/sOrLlEBGfC8Oju SgkaRmR9atlOCuDsS0aRR4XGjQiqS6GGGfks/h5v/8+X2OJR48as7+eLa5udUBWw == Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4aejjwdthu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Nov 2025 10:27:32 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 5AK6nUhQ017319; Thu, 20 Nov 2025 10:27:31 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4af6j1wjxh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Nov 2025 10:27:31 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 5AKARR5K42795316 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 20 Nov 2025 10:27:27 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5ADE02005A; Thu, 20 Nov 2025 10:27:27 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2387320065; Thu, 20 Nov 2025 10:27:27 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 20 Nov 2025 10:27:27 +0000 (GMT) From: Tobias Schumacher Date: Thu, 20 Nov 2025 11:27:26 +0100 Subject: [PATCH v4 1/2] genirq: Change hwirq parameter to irq_hw_number_t Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251120-implement-msi-domain-v4-1-a01be58e158a@linux.ibm.com> References: <20251120-implement-msi-domain-v4-0-a01be58e158a@linux.ibm.com> In-Reply-To: <20251120-implement-msi-domain-v4-0-a01be58e158a@linux.ibm.com> To: Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Niklas Schnelle , Gerald Schaefer , Gerd Bayer , Halil Pasic , Matthew Rosato , Thomas Gleixner Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, Tobias Schumacher X-Mailer: b4 0.14.2 X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=BanVE7t2 c=1 sm=1 tr=0 ts=691eed14 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=apPMBW2BC5_Ovgk0KuUA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE1MDAzMiBTYWx0ZWRfX6he43EldgFij WBvOmsy9yuKnRsi81G/Dk7KhK8wIj6zMwRTZwVE/LGOksuX2/ZGMFrGRvJaGsO8PQzmKgjjPiWF zFqmMFZW/Ze5T3PSxDE1GLF84TJPUI22o6j/DDyGeoXXkphEQHGOLfYwXQCVzlDJ7rjXFNnOSjD DPPswNL9gxdD/uP1qQsRFBd34KuSzGMp2haK5acc0KJkpSQLJLdLMQDHBbgNRlpcIeFeLCiSP5I 0Fz4lQjmjQA/grlyzilCnwEES1WDZ8K3uWGNVoEdSKll7Qce7cdHNqq8Qi6AnN23ls0iEpTjrM/ XCHO02iVgakgVqEqOFGiT3wjlY4ro/ZUL4/sqLVBHuXXaCLCfW+/z7EdcU88KrXXkkrGHFVRH92 /ked8vfClbHUuT8+2I0C8hyjJEeeFA== X-Proofpoint-GUID: 4N-PY9RRItMUbDs4-Gk8OqtNIPpj_qoA X-Proofpoint-ORIG-GUID: 4N-PY9RRItMUbDs4-Gk8OqtNIPpj_qoA X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-20_03,2025-11-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 lowpriorityscore=0 suspectscore=0 spamscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 phishscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2511150032 The irqdomain implementation internally represents hardware IRQs as irq_hw_number_t, which is defined as unsigned long int. When providing an irq_hw_number_t to the generic_handle_domain() functions that expect and unsigned int hwirq, this can lead to a loss of information. Change the hwirq parameter to irq_hw_number_t to support the full range of hwirqs. Reviewed-by: Thomas Gleixner Reviewed-by: Niklas Schnelle Signed-off-by: Tobias Schumacher Reviewed-by: Farhan Ali --- include/linux/irqdesc.h | 6 +++--- kernel/irq/irqdesc.c | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index fd091c35d5721eee37a2fd3d5526559671d5048d..03b63aea73bb21ae1456910afa5= 34d60f9cfa94d 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -183,9 +183,9 @@ int generic_handle_irq_safe(unsigned int irq); * and handle the result interrupt number. Return -EINVAL if * conversion failed. */ -int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwir= q); -int generic_handle_domain_irq_safe(struct irq_domain *domain, unsigned int= hwirq); -int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwir= q); +int generic_handle_domain_irq(struct irq_domain *domain, irq_hw_number_t h= wirq); +int generic_handle_domain_irq_safe(struct irq_domain *domain, irq_hw_numbe= r_t hwirq); +int generic_handle_domain_nmi(struct irq_domain *domain, irq_hw_number_t h= wirq); #endif =20 /* Test to see if a driver has successfully requested an irq */ diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index db714d3014b5f7b62403ea04b80331ec6b1dc642..0cd3198496bc0766c81c353c3ff= 80ea184793d6a 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -720,7 +720,7 @@ EXPORT_SYMBOL_GPL(generic_handle_irq_safe); * This function must be called from an IRQ context with irq regs * initialized. */ -int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwir= q) +int generic_handle_domain_irq(struct irq_domain *domain, irq_hw_number_t h= wirq) { return handle_irq_desc(irq_resolve_mapping(domain, hwirq)); } @@ -738,7 +738,7 @@ EXPORT_SYMBOL_GPL(generic_handle_domain_irq); * context). If the interrupt is marked as 'enforce IRQ-context only' then * the function must be invoked from hard interrupt context. */ -int generic_handle_domain_irq_safe(struct irq_domain *domain, unsigned int= hwirq) +int generic_handle_domain_irq_safe(struct irq_domain *domain, irq_hw_numbe= r_t hwirq) { unsigned long flags; int ret; @@ -761,7 +761,7 @@ EXPORT_SYMBOL_GPL(generic_handle_domain_irq_safe); * This function must be called from an NMI context with irq regs * initialized. **/ -int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwir= q) +int generic_handle_domain_nmi(struct irq_domain *domain, irq_hw_number_t h= wirq) { WARN_ON_ONCE(!in_nmi()); return handle_irq_desc(irq_resolve_mapping(domain, hwirq)); --=20 2.48.1