cciss: factor out cciss_enable_scsi_prefetch()

cciss: factor out cciss_enable_scsi_prefetch()

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

1 files changed, 13 insertions, 10 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 9a4869572a0b..b4264bcda618 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4108,6 +4108,18 @@ static inline bool CISS_signature_present(ctlr_info_t *h)
         return true;
 }
 
+/* Need to enable prefetch in the SCSI core for 6400 in x86 */
+static inline void cciss_enable_scsi_prefetch(ctlr_info_t *h)
+{
+#ifdef CONFIG_X86
+        u32 prefetch;
+
+        prefetch = readl(&(h->cfgtable->SCSI_Prefetch));
+        prefetch |= 0x100;
+        writel(prefetch, &(h->cfgtable->SCSI_Prefetch));
+#endif
+}
+
 static int __devinit cciss_pci_init(ctlr_info_t *c)
 {
         int prod_index, err;
@@ -4169,16 +4181,7 @@ static int __devinit cciss_pci_init(ctlr_info_t *c)
                 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(&(c->cfgtable->SCSI_Prefetch));
-                prefetch |= 0x100;
-                writel(prefetch, &(c->cfgtable->SCSI_Prefetch));
-        }
-#endif
-
+        cciss_enable_scsi_prefetch(c);
         /* Disabling DMA prefetch and refetch for the P600.
          * An ASIC bug may result in accesses to invalid memory addresses.
          * We've disabled prefetch for some time now. Testing with XEN