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>

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 9a4869572a0b9948658afa793067abe2e1d57fb4..b4264bcda618ce97b83a4f80f752a6a1bc0ead7e 100644 (file)
--- 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