linux-kernel - Re: [PATCH v2 1/2] genirq: Change hwirq parameter to irq_hw_number

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <f289fab008aa4b814907b35d3f1a712ecd438461.camel@linux.ibm.com>
Date: Mon, 17 Nov 2025 16:56:50 +0100
From: Niklas Schnelle <schnelle@...ux.ibm.com>
To: Tobias Schumacher <ts@...ux.ibm.com>, Heiko Carstens
 <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev
 <agordeev@...ux.ibm.com>,
        Christian Borntraeger	
 <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Gerald
 Schaefer <gerald.schaefer@...ux.ibm.com>,
        Gerd Bayer
 <gbayer@...ux.ibm.com>, Halil Pasic	 <pasic@...ux.ibm.com>,
        Matthew Rosato
 <mjrosato@...ux.ibm.com>,
        Thomas Gleixner	 <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH v2 1/2] genirq: Change hwirq parameter to irq_hw_number_t

On Mon, 2025-11-17 at 09:59 +0100, 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.
> 
> Signed-off-by: Tobias Schumacher <ts@...ux.ibm.com>
> ---
>  include/linux/irqdesc.h | 6 +++---
>  kernel/irq/irqdesc.c    | 6 +++---
>  2 files changed, 6 insertions(+), 6 deletions(-)
> 
> 

Looks good and this also made it very clean to combine function IDs
with the MSI index. Thanks!

Reviewed-by: Niklas Schnelle <schnelle@...ux.ibm.com>