scsi_transport_sas: add is_sas_attached() function

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Adds a function designed to be callable any time (regardless of
whether the transport attributes are configured or not) which returns
true if the device is attached over a SAS transport.  The design of
this function is that transport specific functions can be embedded
within a

if (is_sas_attached(sdev)) {
	...
}

which would be compiled out (and thus eliminate the symbols) if SAS is
not configured.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

...

This commit is contained in:

James Bottomley 2015-12-09 11:12:03 -08:00

parent ed94724bed

commit 3b91d09c1c

2 changed files with 25 additions and 0 deletions

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9

include/scsi/scsi_transport_sas.h

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