scsi: scsi_dh_alua: Prevent duplicate pg info print in alua_rtpg()

Due to the frequency that alua_rtpg() is called, the path group info print
within can print the same info multiple times in the logs, subsequent
prints adding no new information or value.

To reproduce:

    # modprobe scsi_debug vpd_use_hostno=0
    # systemctl start multipathd.service

To fix, check stored values, only printing at alua attach/activate and if
any of the values change.

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: David Jeffery <[email protected]>
Reviewed-by: Laurence Oberman <[email protected]>
Signed-off-by: John Pittman <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

0 files changed, 0 insertions, 0 deletions