Re: [PATCH v4 10/13] staging: lustre: lnet: lnet: checkpatch.pl fixes

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On Thu, 2015-05-21 at 18:04 -0400, Michael Shuey wrote:
> That's a task (of many) I've been putting on the back burner until the code
> is cleaner.  It's also a HUGE change, since there are debug macros
> everywhere, and they all check a #define'd mask to see if they should fire,
> and the behavior is likely governed by parts of the lustre user land tools
> as well.
> 
> Suggestions are welcome.  Do other parts of the linux kernel define complex
> debugging macros like these, or is this a lustre-ism?  Any suggestions on
> how to handle this more in line with existing drivers?

Yes, many other bits of code use custom debugging macros.

A good general form is to add a either a generic level or bitmask
macro and use a single entry like:

	my_dbg([optional_ptr,] <level|bitmap>, fmt, ...)

so that <level|bitmap> can be tested against some
variable set by MODULE_PARM_DESC controls.

So, CNETERR(...) might be lustre_dbg(ptr, NETERR, fmt, ...)

though I don't know what use the ptr might have.


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