[SCSI] qla2xxx: fix RSCN handling on big-endian systems

qla2xxx driver fails to handle RSCN events affecting area or domain due
to an endian issue on big endian systems.  This fixes the port_id_t
structure on big endian systems.

Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Acked-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 05f4f2a378eb..e8948b679f5b 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -1478,14 +1478,17 @@ typedef union {
         uint32_t b24 : 24;
 
         struct {
-                uint8_t d_id[3];
-                uint8_t rsvd_1;
-        } r;
-
-        struct {
+#ifdef __BIG_ENDIAN
+                uint8_t domain;
+                uint8_t area;
+                uint8_t al_pa;
+#elif __LITTLE_ENDIAN
                 uint8_t al_pa;
                 uint8_t area;
                 uint8_t domain;
+#else
+#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"
+#endif
                 uint8_t rsvd_1;
         } b;
 } port_id_t;