[SCSI] aic94xx: Use sas_request_addr() to provide SAS WWN if the adapter lacks one

If the aic94xx chip doesn't have a SAS address in the chip's flash memory,
make libsas get one for us.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 9 insertions, 11 deletions

diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c
index 098b5f39cd31..940a207a42fb 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.c
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.c
@@ -27,6 +27,7 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/firmware.h>
 
 #include "aic94xx.h"
 #include "aic94xx_reg.h"
@@ -38,16 +39,14 @@ u32 MBAR0_SWB_SIZE;
 
 /* ---------- Initialization ---------- */
 
-static void asd_get_user_sas_addr(struct asd_ha_struct *asd_ha)
+static int asd_get_user_sas_addr(struct asd_ha_struct *asd_ha)
 {
-        extern char sas_addr_str[];
-        /* If the user has specified a WWN it overrides other settings
-         */
-        if (sas_addr_str[0] != '\0')
-                asd_destringify_sas_addr(asd_ha->hw_prof.sas_addr,
-                                         sas_addr_str);
-        else if (asd_ha->hw_prof.sas_addr[0] != 0)
-                asd_stringify_sas_addr(sas_addr_str, asd_ha->hw_prof.sas_addr);
+        /* adapter came with a sas address */
+        if (asd_ha->hw_prof.sas_addr[0])
+                return 0;
+
+        return sas_request_addr(asd_ha->sas_ha.core.shost,
+                                asd_ha->hw_prof.sas_addr);
 }
 
 static void asd_propagate_sas_addr(struct asd_ha_struct *asd_ha)
@@ -657,8 +656,7 @@ int asd_init_hw(struct asd_ha_struct *asd_ha)
 
         asd_init_ctxmem(asd_ha);
 
-        asd_get_user_sas_addr(asd_ha);
-        if (!asd_ha->hw_prof.sas_addr[0]) {
+        if (asd_get_user_sas_addr(asd_ha)) {
                 asd_printk("No SAS Address provided for %s\n",
                            pci_name(asd_ha->pcidev));
                 err = -ENODEV;