ide: constify struct ide_dma_ops

* Export ide_dma_exec_cmd() and __ide_dma_test_irq().

* Constify struct ide_dma_ops.

* Always set hwif->dma_ops to &sff_dma_ops in ide_setup_dma()
  (it is later overriden by ide_init_port() if needed) and drop
  'const struct ide_port_info *d' argument.

While at it:

* Rename __ide_dma_test_irq() to ide_dma_test_irq().

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 079b6f9405ed..f0af504dfa42 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -462,7 +462,7 @@ typedef struct hwif_s {
         void (*rw_disk)(ide_drive_t *, struct request *);
 
         const struct ide_port_ops       *port_ops;
-        struct ide_dma_ops              *dma_ops;
+        const struct ide_dma_ops        *dma_ops;
 
         void (*ata_input_data)(ide_drive_t *, void *, u32);
         void (*ata_output_data)(ide_drive_t *, void *, u32);
@@ -1118,7 +1118,7 @@ struct ide_port_info {
                                             const struct ide_port_info *);
 
         const struct ide_port_ops       *port_ops;
-        struct ide_dma_ops              *dma_ops;
+        const struct ide_dma_ops        *dma_ops;
 
         ide_pci_enablebit_t     enablebits[2];
         hwif_chipset_t          chipset;
@@ -1170,12 +1170,14 @@ void ide_destroy_dmatable(ide_drive_t *);
 extern int ide_build_dmatable(ide_drive_t *, struct request *);
 int ide_allocate_dma_engine(ide_hwif_t *);
 void ide_release_dma_engine(ide_hwif_t *);
-void ide_setup_dma(ide_hwif_t *, unsigned long, const struct ide_port_info *);
+void ide_setup_dma(ide_hwif_t *, unsigned long);
 
 void ide_dma_host_set(ide_drive_t *, int);
 extern int ide_dma_setup(ide_drive_t *);
+void ide_dma_exec_cmd(ide_drive_t *, u8);
 extern void ide_dma_start(ide_drive_t *);
 extern int __ide_dma_end(ide_drive_t *);
+int ide_dma_test_irq(ide_drive_t *);
 extern void ide_dma_lost_irq(ide_drive_t *);
 extern void ide_dma_timeout(ide_drive_t *);
 #endif /* CONFIG_BLK_DEV_IDEDMA_SFF */