Re: [PATCH] SCSI: userspace cannot use scsi_command_size_tbl, COMMAND_SIZE and scsi_device_type

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On Sun, 2009-06-28 at 10:32 -0400, James Smart wrote:
> Sorry folks --  the nuance of the clibrary having it's own version of a 
> kernel header for distros was completely unknown to me.
> 
> Christoph mentioned this to me last week, with the recommendation to 
> back out the patch and move the other headers that were exprted into 
> include/linux - thus nothing in include/scsi gets export.  No Problem. 
> and I'll do so shortly.

Actually, I'm not sure that's the best way forwards ... the idea of
include/scsi is to group all the SCSI headers together; having to put
them in include/linux if they need to be exported defeats that purpose
slightly.

I think the first point of business might be to find out why (or even
if) glibc still wants its own SCSI headers.  After all, we now have
quite an anomaly: if you use the old SG_IO ioctl, glibc supplies the
header in include/scsi/sg.h; if you use the new bsg SG_IO then we supply
it in include/linux/bsg.h

> How does a lowly contributor track these kind of nuances ?

If the creator of the kernel header exports missed this problem for a
year, I think it's safe to assume you don't lose brownie points for not
spotting it either.

James


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