libata-sff: prd is BMDMA specific

struct ata_prd and ap->prd are BMDMA specific.  Add bmdma_ prefix to
them and move them inside CONFIG_ATA_SFF.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

2 files changed, 3 insertions, 4 deletions

diff --git a/include/linux/ata.h b/include/linux/ata.h
index 700c5b9b3583..fe6e681a9d74 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -467,7 +467,7 @@ enum ata_ioctls {
 
 /* core structures */
 
-struct ata_prd {
+struct ata_bmdma_prd {
         __le32                  addr;
         __le32                  flags_len;
 };
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 3675fd29b2e5..d973972f0db2 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -716,14 +716,13 @@ struct ata_port {
         unsigned int            print_id; /* user visible unique port ID */
         unsigned int            port_no; /* 0 based port no. inside the host */
 
-        struct ata_prd          *prd;    /* our SG list */
-        dma_addr_t              prd_dma; /* and its DMA mapping */
-
 #ifdef CONFIG_ATA_SFF
         struct ata_ioports      ioaddr; /* ATA cmd/ctl/dma register blocks */
         u8                      ctl;    /* cache of ATA control register */
         u8                      last_ctl;       /* Cache last written value */
         struct delayed_work     sff_pio_task;
+        struct ata_bmdma_prd    *bmdma_prd;     /* BMDMA SG list */
+        dma_addr_t              bmdma_prd_dma;  /* and its DMA mapping */
 #endif /* CONFIG_ATA_SFF */
 
         unsigned int            pio_mask;