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: <20230802-risk-getting-e6005e86be81@spud>
Date:   Wed, 2 Aug 2023 23:53:59 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     Jisheng Zhang <jszhang@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        Jiri Slaby <jirislaby@...nel.org>,
        linux-serial@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: serial: snps-dw-apb-uart: make
 interrupt optional

On Thu, Aug 03, 2023 at 12:57:44AM +0300, Andy Shevchenko wrote:
> On Wed, Aug 02, 2023 at 04:43:48PM +0100, Conor Dooley wrote:
> > On Wed, Aug 02, 2023 at 11:05:44PM +0800, Jisheng Zhang wrote:
> > > The driver fall back to poll style when there's no irq. "poll" still
> > > looks better than no support.
> > 
> > What is the user for this where the interrupt is not actually wired up
> > in the hardware?
> 
> FYI: kernel console doesn't use interrupts, so for example it might be
> the debug port. Note, I have no idea of the Zhang's case, just my assumption.

I'm less interested in what the software is doing, it's what the device 
that has not connected the interrupt is that I am curious about.

Download attachment "signature.asc" of type "application/pgp-signature" (229 bytes)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ