linux-kernel - Re: [PATCH v2 5/5] drm/komeda: add rate limiting disable to err

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: <39367348.R9gcQaf2xt@e123338-lin>
Date:   Tue, 12 Nov 2019 13:00:00 +0000
From:   Mihail Atanassov <Mihail.Atanassov@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>
CC:     nd <nd@....com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        nd <nd@....com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Sean Paul <sean@...rly.run>,
        Brian Starkey <Brian.Starkey@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>,
        "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 5/5] drm/komeda: add rate limiting disable to
 err_verbosity

On Monday, 11 November 2019 15:53:14 GMT Liviu Dudau wrote:
> On Thu, Nov 07, 2019 at 11:42:44AM +0000, Mihail Atanassov wrote:
> > It's possible to get multiple events in a single frame/flip, so add an
> > option to print them all.
> > 
> > Reviewed-by: James Qian Wang (Arm Technology China) <james.qian.wang@....com>
> > Signed-off-by: Mihail Atanassov <mihail.atanassov@....com>
> 
> For the whole series:
> 
> Acked-by: Liviu Dudau <liviu.dudau@....com>

Thanks, applied to drm-misc-next.

> 
> Best regards,
> Liviu
> 
> > ---
> > 
> >  v2: Clean up continuation line warning from checkpatch.
> > 
> >  drivers/gpu/drm/arm/display/komeda/komeda_dev.h   | 2 ++
> >  drivers/gpu/drm/arm/display/komeda/komeda_event.c | 2 +-
> >  2 files changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > index d9fc9c48859a..15f52e304c08 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
> > @@ -224,6 +224,8 @@ struct komeda_dev {
> >  #define KOMEDA_DEV_PRINT_INFO_EVENTS BIT(2)
> >  	/* Dump DRM state on an error or warning event. */
> >  #define KOMEDA_DEV_PRINT_DUMP_STATE_ON_EVENT BIT(8)
> > +	/* Disable rate limiting of event prints (normally one per commit) */
> > +#define KOMEDA_DEV_PRINT_DISABLE_RATELIMIT BIT(12)
> >  };
> >  
> >  static inline bool
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_event.c b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > index 7fd624761a2b..bf269683f811 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_event.c
> > @@ -119,7 +119,7 @@ void komeda_print_events(struct komeda_events *evts, struct drm_device *dev)
> >  	/* reduce the same msg print, only print the first evt for one frame */
> >  	if (evts->global || is_new_frame(evts))
> >  		en_print = true;
> > -	if (!en_print)
> > +	if (!(err_verbosity & KOMEDA_DEV_PRINT_DISABLE_RATELIMIT) && !en_print)
> >  		return;
> >  
> >  	if (err_verbosity & KOMEDA_DEV_PRINT_ERR_EVENTS)
> > -- 
> > 2.23.0
> > 
> 
> -- 
> ====================
> | I would like to |
> | fix the world,  |
> | but they're not |
> | giving me the   |
>  \ source code!  /
>   ---------------
>     ¯\_(ツ)_/¯
> 


-- 
Mihail