Date:   Mon, 23 Jan 2023 15:04:31 +0300
From:   Dan Carpenter <error27@gmail.com>
To:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc:     Phil Elwell <phil@raspberrypi.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Stefan Wahren <stefan.wahren@i2se.com>,
        Umang Jain <umang.jain@ideasonboard.com>,
        linux-media@vger.kernel.org, linux-staging@lists.linux.dev,
        linux-arm-kernel@lists.infradead.org,
        linux-rpi-kernel@lists.infradead.org,
        Florian Fainelli <f.fainelli@gmail.com>,
        Adrien Thierry <athierry@redhat.com>,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        Kieran Bingham <kieran.bingham@ideasonboard.com>,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 0/4] Drop custom logging
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On Fri, Jan 20, 2023 at 02:53:15AM +0200, Laurent Pinchart wrote:
> Log categories are used to group messages in categories and control
> their log level per category. As far as I know, dynamic debug doesn't
> provide any such feature.

One idea is you could put the category in the format string.  Then you
could just grep /proc/dynamic_debug/control for it and enable the printks
like that.

regards,
dan carpenter