fnic: Using rport->dd_data to check rport online instead of rport_lookup.
When issuing I/O we check if rport is online through libfc rport_lookup() function which needs to be protected by mutex lock that cannot acquired in I/O context. The change is to use midlayer remote port s dd_data which is preserved until its devloss timeout and no protection is required. The the scsi_cmnd error code is expected to be in the left 16 bits of the result field. Changed to correct this. Fnic driver version changed from 1.6.0.20 to 1.6.0.21 Signed-off-by:Satish Kharat <satishkh@cisco.com> Signed-off-by:
Sesidhar Baddela <sebaddel@cisco.com> Reviewed-by:
Ewan Milne <emilne@redhat.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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