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b43: Dynamically control log verbosity

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Dynamically control the log verbosity with a module parameter.
This enables us to dynamically enable debugging messages (or disable
info, warn, error messages) via module parameter or /sys/module/b43/parameters/verbose.

This increases the module size by about 3k. But in practice it reduces the
module size for the user, because some distributions ship the b43 module
with CONFIG_B43_DEBUG set, which increases the module by about 15k.

So with this patch applied, distributions should really _disable_ CONFIG_B43_DEBUG.
There is no reason to keep it in a production-release kernel.
So we have a net reduction in size by about 12k.

This patch also adds a printk of the wireless core revision, so people
don't have to enable SSB debugging to get the wireless core revision.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Buesch
2009-01-25 15:49:59 +01:00
committed by John W. Linville
parent 08e87a833f
commit 060210f938
6 changed files with 60 additions and 19 deletions
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18
drivers/net/wireless/b43/main.h
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@ -40,6 +40,24 @@
extern int b43_modparam_qos;
extern int b43_modparam_verbose;
/* Logmessage verbosity levels. Update the b43_modparam_verbose helptext, if
* you add or remove levels. */
enum b43_verbosity {
B43_VERBOSITY_ERROR,
B43_VERBOSITY_WARN,
B43_VERBOSITY_INFO,
B43_VERBOSITY_DEBUG,
__B43_VERBOSITY_AFTERLAST, /* keep last */
B43_VERBOSITY_MAX = __B43_VERBOSITY_AFTERLAST - 1,
#if B43_DEBUG
B43_VERBOSITY_DEFAULT = B43_VERBOSITY_DEBUG,
#else
B43_VERBOSITY_DEFAULT = B43_VERBOSITY_INFO,
#endif
};
/* Lightweight function to convert a frequency (in Mhz) to a channel number. */