From nobody Tue Dec 2 01:48:46 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 5B8C448CFC; Fri, 21 Nov 2025 05:32:30 +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=1763703151; cv=none; b=nLjdk4TYXZv1AE+lUeU7vwz+kJup1+K9GYCNeWiDI5HxvW1/7e27KUYcE0YGO21HmAFjUgVRPC7KYcN24HDRG8Gw9Y6I40jfkKZeUsc1DuwJGYtEUkc6i6qPH0GgrBTM5eLvUSwDR1VfhUtd0YoQIj1Z4qaGWbPXQNiV70z+nHU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763703151; c=relaxed/simple; bh=ezU6u32vNzWRTEjEI099Q2bFP3GbsC3ZN8ncckHyZPY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=cyifyQqyDxOwIJqBZgasEctvI/vctiCBlEeI/Yvy7oFdpptT2fkp9Y3DaI/Yb7DTm+XI6+vJ42f4LMl89C9S3B6ArVeDS8J0CSpqBlxKmgjuBsB3rj1qXUZa4UrB0SKlmnRRs9bfTGV7UveGyq67kPLd13AlYb6zS7CUn7OyjtM= 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=hvmai7WW; 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="hvmai7WW" Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 5AKNTtM9029115; Fri, 21 Nov 2025 05:32:27 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=gXnwg8 wzaxANiAB/gZJl9Ul1qELkH93rZ/kCTGNdriI=; b=hvmai7WWzrO8GDEAoVysVZ Rm+xVKTVUK3ZYE6oPOVWKkIhPtQDP3bxNbGXZhXOrhsKMqQlRtlstcqb6LAGbOLv IT0PdbXnXbaqOMYHH/cBlSzDVyUtmCni169vZjj56IfV4C/6wZFRgJVFjBniJgjt 0bwqUJZlfL8fHOmbCV4+yNkqHSM+SkJozPLRzuJv6kQUatiqLKanVgDluVV11h14 lYQYYEMnHSmKATBAVTceulF6vdLQrKaQxdBPy5dDsDTduAfLKbHnFufdeGiFB1R8 0mKGxelqKu7IJBMhbJWKgKF8DSLwDmaPljPpE+D5BDxR0YPOWagYYfHxADjlcsGg == Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4aejk1t87j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 21 Nov 2025 05:32:26 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 5AL56dCX006954; Fri, 21 Nov 2025 05:32:25 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 4af62jtat8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 21 Nov 2025 05:32:25 +0000 Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 5AL5WMdE43778416 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 21 Nov 2025 05:32:22 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 03A3B20040; Fri, 21 Nov 2025 05:32:22 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C29512004B; Fri, 21 Nov 2025 05:32:21 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 21 Nov 2025 05:32:21 +0000 (GMT) From: Tobias Schumacher Date: Fri, 21 Nov 2025 06:32:18 +0100 Subject: [PATCH v5 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: <20251121-implement-msi-domain-v5-1-d7e717dfd3f7@linux.ibm.com> References: <20251121-implement-msi-domain-v5-0-d7e717dfd3f7@linux.ibm.com> In-Reply-To: <20251121-implement-msi-domain-v5-0-d7e717dfd3f7@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 , Farhan Ali X-Mailer: b4 0.14.2 X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=C/nkCAP+ c=1 sm=1 tr=0 ts=691ff96a cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=apPMBW2BC5_Ovgk0KuUA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-GUID: WvWYQvX-Uye2heIDlin9BXuTw0tQd1PT X-Proofpoint-ORIG-GUID: WvWYQvX-Uye2heIDlin9BXuTw0tQd1PT X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE1MDAzMiBTYWx0ZWRfX4BWL5n1RhtGH jNjFjsnNXKI5kCJ90qDUNigx9/fbt//tfshRwYHaqozCclkCXnFIwb03MllGuzaNl/Cu/pd5ODX wH6BprVgTsfEhIqEC8T/uS6EUbGQ4B2oKdk+LVvWgOaRly5qoy293VGaxAdniGr9BBMMddS5ClN SlWkE4Xb9VOFpKqwfIag/GY1LcAX5w7HjikjMy/ajGDp73QyBOBb37ND4mtvlg8WDfFL55AVkL+ 30ccuIrNug94bfDuJo7tuMcfmIBbDdyA1uqDlbwu7cl3e74xlJ7DkTYtSYicFEA98g0uzaigTBb NNFQumEUDn6zQk3esT91qEFYmdRJ5v1JcF6MQ8kOv8YEi45lpq1l+OrjEJbuv23wLfTMUbzgzE1 8vACCTsfRykxIp5mQ5C2LU6uRvUw0Q== 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=2025-11-21_02,2025-11-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 spamscore=0 impostorscore=0 bulkscore=0 malwarescore=0 suspectscore=0 clxscore=1015 lowpriorityscore=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 Reviewed-by: Farhan Ali Signed-off-by: Tobias Schumacher --- 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