linux-kernel - [PATCH 0/5] printk: more log flag simplification

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Date:	Thu, 17 Jul 2014 12:59:08 -0500
From:	Alex Elder <elder@...aro.org>
To:	akpm@...ux-foundation.org
Cc:	kay@...y.org, pmladek@...e.cz, bp@...e.de, john.stultz@...aro.org,
	jack@...e.cz, linux-kernel@...r.kernel.org
Subject: [PATCH 0/5] printk: more log flag simplification

This series rearranges the log code in such a way that the LOG_CONT
and LOG_PREFIX log record flags can be eliminated entirely.  The
result should be considerably easier to understand than before.  It
builds on another recently-posted series of patches:
    https://lkml.org/lkml/2014/7/17/363

The first patch exploits the fact that LOG_CONT and LOG_NEWLINE
are inverses, and uses LOG_NEWLINE (or its negation) anywhere
LOG_CONT is used.  As a result, LOG_CONT is no longer needed, so
it's eliminated.

The next three patches together eliminate LOG_PREFIX.  The effect
of LOG_PREFIX is to complete the previous log entry before recording
a new one.  Patch 2 arranges to do this directly, marking the previous
log record with LOG_NEWLINE whenever a new record is presented with
LOG_PREFIX set.  Patch 3 stops saving LOG_PREFIX in any log records,
and patch 4 finally gets rid of LOG_PREFIX.

The last patch is just some cleanup of the code now that it's gone
through this transformation.

					-Alex

This series is available here:
    http://git.linaro.org/landing-teams/working/broadcom/kernel.git
    Branch review/more-printk-flags
It is based on branch review/printk-flags-v2 in that same repository.

Alex Elder (5):
  printk: kill LOG_CONT
  printk: update previous message for LOG_PREFIX
  printk: stop actually recording LOG_PREFIX
  printk: kill LOG_PREFIX
  printk: rename LOG_NEWLINE and tidy up

 kernel/printk/printk.c | 135 +++++++++++++++++++++++++++++--------------------
 1 file changed, 81 insertions(+), 54 deletions(-)

-- 
1.9.1

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