linux-kernel - About irq_create_affinity_masks() for a platform device driver

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-next>] [day] [month] [year] [list]

Message-ID: <84a9411b-4ae3-1928-3d35-1666f2687ec8@huawei.com>
Date:   Wed, 22 Jan 2020 10:09:41 +0000
From:   John Garry <john.garry@...wei.com>
To:     Thomas Gleixner <tglx@...utronix.de>
CC:     Marc Zyngier <maz@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        chenxiang <chenxiang66@...ilicon.com>
Subject: About irq_create_affinity_masks() for a platform device driver

Hi Thomas,

A question about the function in the $subject:

Would there be any issue with a SCSI platform device driver referencing 
this function?

So I have a multi-queue platform device, and I want to spread interrupts 
over all possible CPUs, just like we can do for PCI MSI vectors. This 
topic was touched on in [0].

And, if so it's ok, could we export that same symbol?

Cheers,
John

[0] 
https://lore.kernel.org/lkml/88d64d51-4344-e908-b55b-0583b0137ddf@huawei.com/