linux-kernel - Re: [PATCH v6 2/2] drm/msm/dp: enhance dp controller isr

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]

Date:   Wed, 18 Jan 2023 03:28:22 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Kuogee Hsieh <quic_khsieh@...cinc.com>,
        dri-devel@...ts.freedesktop.org, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, dianders@...omium.org,
        vkoul@...nel.org, daniel@...ll.ch, airlied@...il.com,
        agross@...nel.org, andersson@...nel.org
Cc:     quic_abhinavk@...cinc.com, quic_sbillaka@...cinc.com,
        freedreno@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 2/2] drm/msm/dp: enhance dp controller isr

On 28/12/2022 04:16, Kuogee Hsieh wrote:
> dp_display_irq_handler() is the main isr handler with the helps
> of two sub isr, dp_aux_isr and dp_ctrl_isr, to service all DP
> interrupts on every irq triggered. Current all three isr does
> not return IRQ_HANDLED if there are any interrupts it had
> serviced. This patch fix this ambiguity by having all isr
> return IRQ_HANDLED if there are interrupts had been serviced
> or IRQ_NONE otherwise.
> 
> Changes in v5:
> -- move complete into dp_aux_native_handler()
> -- move complete into dp_aux_i2c_handler()
> -- restore null ctrl check at isr
> -- return IRQ_NODE directly
> 
> Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
> Suggested-by: Stephen Boyd <swboyd@...omium.org>
> ---
>   drivers/gpu/drm/msm/dp/dp_aux.c     | 95 ++++++++++++++++++++++++++-----------
>   drivers/gpu/drm/msm/dp/dp_aux.h     |  2 +-
>   drivers/gpu/drm/msm/dp/dp_ctrl.c    | 12 ++++-
>   drivers/gpu/drm/msm/dp/dp_ctrl.h    |  2 +-
>   drivers/gpu/drm/msm/dp/dp_display.c | 16 +++++--
>   5 files changed, 89 insertions(+), 38 deletions(-)
> 

Stephen, Dough, do we still want this patch in?

-- 
With best wishes
Dmitry