linux-kernel - [RFC PATCH 0/3] printk: Use a non-printable ASCII SOH for KERN

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Message-Id: <cover.1337899274.git.joe@perches.com>
Date:	Thu, 24 May 2012 15:49:30 -0700
From:	Joe Perches <joe@...ches.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Cc:	Greg KH <gregkh@...uxfoundation.org>, Kay Sievers <kay@...y.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [RFC PATCH 0/3] printk: Use a non-printable ASCII SOH for KERN_<LEVEL>

printk uses "<.>" as a start of record indicator.
This can waste a bit of space and causes a bit of
contortion to get a printk emitted that happens to
starts with "<.>".

Use ASCII Start-of-Header (0x01) as the KERN_LEVEL
initiator and save ~10K in an x86 defconfig.

Joe Perches (3):
  printk: Use a non-printable ASCII KERN_<LEVEL> initiator
  treewide: Fix declaration and uses of old KERN_<LEVEL> style
  printk: Set KERN_CONT to ""

 arch/arm/lib/io-acorn.S              |    4 +++-
 arch/arm/vfp/vfphw.S                 |    8 +++++---
 arch/frv/kernel/kernel_thread.S      |    2 +-
 drivers/staging/wlags49_h2/hcf.c     |    8 ++++----
 drivers/staging/wlags49_h2/wl_main.c |    4 ++--
 fs/btrfs/super.c                     |    9 +++++----
 include/linux/printk.h               |   23 +++++++++++++----------
 kernel/printk.c                      |    6 +++---
 net/bridge/netfilter/ebt_log.c       |    2 +-
 sound/core/misc.c                    |    8 ++++----
 10 files changed, 41 insertions(+), 33 deletions(-)

-- 
1.7.8.111.gad25c.dirty

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