linux-kernel - Re: [PATCH 0/3] gpio: pcie-idio-24: Fix IRQ handling

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: <20201104154529.GA406355@shinobu>
Date:   Wed, 4 Nov 2020 10:45:29 -0500
From:   William Breathitt Gray <vilhelm.gray@...il.com>
To:     Arnaud de Turckheim <quarium@...il.com>
Cc:     linus.walleij@...aro.org, bgolaszewski@...libre.com,
        linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH 0/3] gpio: pcie-idio-24: Fix IRQ handling

On Wed, Nov 04, 2020 at 04:24:52PM +0100, Arnaud de Turckheim wrote:
> This patch set fixes the irq_mask/irq_unmask functions and enables the
> PLX PEX8311 local interrupts.
> 
> With the current version of the driver, gpiomon (from libgpiod) or a
> poll(2) on the sysfs value are not working. According to
> /proc/interrupts, there is no interruption triggered.
> The main issue is that the local interrupts are not forwarded by the
> PEX8311 to the PCI.
> 
> There is also two bugs:
>     - The IRQ mask is not correctly updated when unmasking an
>       interruption.
>     - The COS Enable Register value is not correctly updated when
>       masking/unmasking an interruption.
> 
> It seems this problems exist since the initial commit.
> 
> Arnaud de Turckheim (3):
>   gpio: pcie-idio-24: Fix irq mask when masking
>   gpio: pcie-idio-24: Fix IRQ Enable Register value
>   gpio: pcie-idio-24: Enable PEX8311 interrupts
> 
>  drivers/gpio/gpio-pcie-idio-24.c | 62 ++++++++++++++++++++++++++++----
>  1 file changed, 56 insertions(+), 6 deletions(-)
> 
> -- 
> 2.25.1
> 

This patchset looks good to me and fixes several fundamental bugs. I'm
going to reply to each patch individually to give my Reviewed-by tags
for the benefit of those picking up the patches.

Thanks!

William Breathitt Gray

Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)