linux-kernel - Re: [PATCH v2] [media] vb2: core: Lower the log level of debug outputs

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Message-ID: <1496203602.2618.54.camel@perches.com>
Date:   Tue, 30 May 2017 21:06:42 -0700
From:   Joe Perches <joe@...ches.com>
To:     Hirokazu Honda <hiroh@...omium.org>
Cc:     Pawel Osciak <pawel@...iak.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] [media] vb2: core: Lower the log level of debug
 outputs

On Wed, 2017-05-31 at 12:28 +0900, Hirokazu Honda wrote:
> If I understand a bitmap correctly, it is necessary to change the log level
> for each message.
> I didn't mean a bitmap will take a long CPU time.
> I mean the work to change so takes a long time.

No, none of the messages or levels need change,
only the >= test changes to & so that for instance,
level 1 and level 3 messages could be emitted
without also emitting level 2 messages.

The patch suggested is all that would be required.