Re: [PATCH][RFC 2/23]: SCST core

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> 
> >>  drivers/scst/scst_lib.c      | 3689 
> >>  +++++++++++++++++++++++++++++++++++++
> >>  drivers/scst/scst_main.c     | 1919 +++++++++++++++++++
> >>  drivers/scst/scst_module.c   |   69
> >>  drivers/scst/scst_priv.h     |  513 +++++
> >>  drivers/scst/scst_targ.c     | 5458 
> >>  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >>  8 files changed, 12435 insertions(+)
> >
> >There was a lot af TRACE_ENTRY() / TRACE_EXIT() noise.
> >We should have proper tools for that by now (I hope).
> 
> Sorry, I don't see such tools with, for instance, a possibility to be 
> compiled out in non-debug builds.
> 
> From one side, I can agree, those TRACE_ENTRY()/TRACE_EXIT() statements 
> *may* look like a noise (I personally don't notice them), but, from 
> other side, in past times they have proved how usable they are. If an 
> SCST user has a problem, I simply ask him to make a debug build, then 
> enable entry_exit and some other logging levels, then reproduce the 
> problem and send me the logs. Then in most cases I can see what's wrong 
> and provide a fix without additional actions and questions.

I had ftrace in mind but it has not hit mainline yet.
But will do before this patchset does.

> 
> >We often ask for exported symbols to be documented - so one has
> >a slight idea of their purpose.
> 
> They are documented, near their prototypes in the public header files, 
> particularly, scst.h. It was done so, because it was supposed that one, 
> writing a target driver or dev handler will have on hands the header 
> files, not source code.
> 
> Should we move those comments from the functions prototypes to the 
> functions definitions?
If there will be multiple implmentations of the same prototype
we generally recommend to stick the comment in a .H file.
But otherwise keep it close to the source it describe with the
minimal hope that it gets updated.

Oh - and we do not distribute a stripped down headers only
version of the kernel. Users will see full kernel source.

	Sam
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