[PATCH v2] log: Allow LOG_DEBUG to always enable log output

[Tom Rini]

On Sun, Sep 27, 2020 at 09:55:34AM -0600, Simon Glass wrote:

> At present if CONFIG_LOG enabled, putting LOG_DEBUG at the top of a file
> (before log.h inclusion) causes _log() to be executed for every log()
> call, regardless of the build- or run-time logging level.
> 
> However there is no guarantee that the log record will actually be
> displayed. If the current log level is lower than LOGL_DEBUG then it will
> not be.
> 
> Add a way to signal that the log record should always be displayed and
> update log_passes_filters() to handle this.
> 
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v2:
> - Avoid clang-10 warning about converting an enum constant to a boolean

So, this is v2 and
https://patchwork.ozlabs.org/project/uboot/patch/20200912171335.3889616-1-sjg@chromium.org/
is also v2, and I started by taking the former.  It looks like that
might be right but please send a follow-up to reconcile anything that
needs it, thanks!

-- 
Tom
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