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  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]
Date:   Thu, 30 Aug 2018 09:19:29 -0500
From:   Rob Herring <>
To:     John Garry <>
Cc:     Greg Kroah-Hartman <>,
        Alexander Sverdlin <>,
        Jiri Slaby <>, Joel Stanley <>,,
        Masahiro Yamada <>,
        "open list:SERIAL DRIVERS" <>,
        "" <>,
        Linuxarm <>
Subject: Re: [PATCH v2] serial: 8250_of: Fix for lack of interrupt support

On Thu, Aug 30, 2018 at 4:10 AM John Garry <> wrote:
> In commit c58caaab3bf8 ("serial: 8250: of: Defer probe on missing IRQ"), a
> check was added for the UART driver being probed prior to the parent IRQ
> controller.
> Unfortunately this breaks certain boards which have no interrupt support,
> like Huawei D03.
> Indeed, the 8250 DT bindings state that interrupts should be supported -
> not must.
> To fix, switch from irq_of_parse_and_map() to of_irq_get(), which
> does relay whether the IRQ host controller domain is not ready, i.e.
> defer probe, instead of assuming it.

Good, one less user of irq_of_parse_and_map().

Reviewed-by: Rob Herring <>

Powered by blists - more mailing lists