On Wed, 2017-06-28 at 15:17 +0200, Lubomir Rintel wrote:

The mac80211_hwsim doesn't offer a way to disable the debugging output.
Unfortunately, it's pretty chatty, dumping a  lot of stuff into the message
buffer.

This patch changes it to use dyndbg for controlling the debug output.
It's disabled by default, but can be enabled by a module parameter (1),
at runtime (2) or persisted in modprobe.conf (3).

  (1) modprobe mac80211_hwsim dyndbg=+p
  (2) echo "module mac80211_hwsim +p" >/sys/kernel/debug/dynamic_debug/control
  (3) echo "options mac80211_hwsim dyndbg=+p" >>/etc/modprobe.d/my.conf

I wonder about the value at all of the 2 forms:

wiphy_dbg	-> only with #define DEBUG or dynamic_debug
wiphy_debug	-> always emitted at KERN_DEBUG

Is there any real value in wiphy_debug?

Should it just be converted to

#define wiphy_debug	wiphy_dbg

or maybe a global sed to remove it completely?