[SCSI] hpsa: factor out hpsa_enable_scsi_prefetch

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 13 insertions, 9 deletions

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index f2a9af64dfaa..62f9784ecf8f 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3384,6 +3384,18 @@ static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
         return true;
 }
 
+/* Need to enable prefetch in the SCSI core for 6400 in x86 */
+static inline void hpsa_enable_scsi_prefetch(struct ctlr_info *h)
+{
+#ifdef CONFIG_X86
+        u32 prefetch;
+
+        prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
+        prefetch |= 0x100;
+        writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
+#endif
+}
+
 static int __devinit hpsa_pci_init(struct ctlr_info *h)
 {
         int i, prod_index, err;
@@ -3431,15 +3443,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
                 err = -ENODEV;
                 goto err_out_free_res;
         }
-#ifdef CONFIG_X86
-        {
-                /* Need to enable prefetch in the SCSI core for 6400 in x86 */
-                u32 prefetch;
-                prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
-                prefetch |= 0x100;
-                writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
-        }
-#endif
+        hpsa_enable_scsi_prefetch(h);
 
         /* Disabling DMA prefetch for the P600
          * An ASIC bug may result in a prefetch beyond