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Thu, 20 Nov 2025 18:33:05 +0000 (GMT) Message-ID: <557b0fdc-6f13-4676-90e4-062d8ff1bd66@linux.ibm.com> Date: Thu, 20 Nov 2025 10:33:05 -0800 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 1/2] genirq: Change hwirq parameter to irq_hw_number_t To: Tobias Schumacher , 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 References: <20251120-implement-msi-domain-v4-0-a01be58e158a@linux.ibm.com> <20251120-implement-msi-domain-v4-1-a01be58e158a@linux.ibm.com> Content-Language: en-US From: Farhan Ali In-Reply-To: <20251120-implement-msi-domain-v4-1-a01be58e158a@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Dt-bp986jsieyot2ze5pd3vWPCmlYQt_ X-Proofpoint-ORIG-GUID: Dt-bp986jsieyot2ze5pd3vWPCmlYQt_ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTE1MDAzMiBTYWx0ZWRfX6VPoEK0GU7Nd JWRDwQOk6Q3G9Vw7cqGuFC+rdRMBT+ikbnGLJKtYy55cOvxJGuaCTz515de2hciuT32uoc4xR94 A3iX2Cv1cX+RaDswdvd26s0S5IKpymbJGLMmlYIKiGgHl1k7u+8Urd0Ijx+3aOqdPX9VX8g59Sx 0mWNmYgD5POAkNqju3iRDEC1mTXnEeCZ9SFe3Oo2ytog4CSmv0726r2y64pMkRPu8WGXeZxdTKk INYsTKgrOvY6kLw79sDNfD5fIdjUydHO7IMvNcQSlVI0q2+IWcVaOUw3Lte0D5zCqyyqFyo0kO1 ToDDLQFxiLXi3DzbLaODi3MAmv+9uXuK28I7TVdtOsgj/SzOvKWDbQsAt34TQnFhAujUR6eqBhU d0ebpn4ZbMDqELhEpztfPHzt+Yg91w== X-Authority-Analysis: v=2.4 cv=SvOdKfO0 c=1 sm=1 tr=0 ts=691f5ee4 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VnNF1IyMAAAA:8 a=a5bBmSbS2bHyvMdTAZoA:9 a=QEXdDO2ut3YA:10 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_06,2025-11-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 clxscore=1015 suspectscore=0 phishscore=0 adultscore=0 bulkscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2510240000 definitions=main-2511150032 On 11/20/2025 2:27 AM, Tobias Schumacher wrote: > 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 > --- > include/linux/irqdesc.h | 6 +++--- > kernel/irq/irqdesc.c | 6 +++--- > 2 files changed, 6 insertions(+), 6 deletions(-) Reviewed-by: Farhan Ali