On Wed, Sep 02, 2009 at 06:44:06PM +0200, Marco Stornelli wrote: > Marc Andre Tanner ha scritto: > > Introduce a config option which allows to selectively compile out > > printk messages based on a specified verbosity level. > > > > Signed-off-by: Marc Andre Tanner <mat@xxxxxxxxxxxxxx> > > --- > > init/Kconfig | 29 +++++++++++++++++++++++++++++ > > 1 files changed, 29 insertions(+), 0 deletions(-) > > > > diff --git a/init/Kconfig b/init/Kconfig > > index 3f7e609..549ed95 100644 > > --- a/init/Kconfig > > +++ b/init/Kconfig > > @@ -833,6 +833,35 @@ config PRINTK > > very difficult to diagnose system problems, saying N here is > > strongly discouraged. > > > > +config PRINTK_VERBOSITY > > + int "Printk compile time verbosity" > > + depends on EMBEDDED && PRINTK > > + range 0 7 > > + default 0 > > + help > > + > > + Select the maximum printk verbosity level to be compiled into > > + the kernel. > > + > > + Messages above the specified verbosity level are removed from > > + the kernel at compile time. This reduces the kernel image size > > + at the cost of a calmer kernel. > > + > > + Possible verbosity levels are listed below. Note that messages > > + without an explicit loglevel will be classified as KERN_WARNING. > > + > > + 0 Disable this feature and compile all messages in. > > + > > + 1 KERN_ALERT /* action must be taken immediately */ > > + 2 KERN_CRIT /* critical conditions */ > > + 3 KERN_ERR /* error conditions */ > > + 4 KERN_WARNING /* warning conditions */ > > + 5 KERN_NOTICE /* normal but significant condition */ > > + 6 KERN_INFO /* informational */ > > + 7 KERN_DEBUG /* debug-level messages */ > > + > > + If unsure, just move on and leave this option alone. > > + > > config BUG > > bool "BUG() support" if EMBEDDED > > default y > > If there are some problems to handle KERN_CONT you should say something > here. ACK. > You should even add in cc: the kernel ML, however it seems a good > work. Well I first wanted to get some feedback from the embedded people. I will probably send it to LKML after the 2.6.31 release, don't know how the chances for inclusion are though. Marc -- Marc Andre Tanner >< http://www.brain-dump.org/ >< GPG key: CF7D56C0 -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
