libata: separate PMP support code from core code
Most of PMP support code is already in libata-pmp.c. All that are in
libata-core.c are sata_pmp_port_ops and EXPORTs. Move them to
libata-pmp.c. Also, collect PMP related prototypes and declarations
in header files and move them right above of SFF stuff.
This change is to make PMP support optional.
Signed-off-by: Tejun Heo <htejun@gmail.com>
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 6b70a62..42b30e3 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -179,11 +179,6 @@
extern void ata_scsi_dev_rescan(struct work_struct *work);
extern int ata_bus_probe(struct ata_port *ap);
-/* libata-pmp.c */
-extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
-extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
-extern int sata_pmp_attach(struct ata_device *dev);
-
/* libata-eh.c */
extern enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd);
extern void ata_scsi_error(struct Scsi_Host *host);
@@ -207,6 +202,11 @@
struct ata_link **r_failed_disk);
extern void ata_eh_finish(struct ata_port *ap);
+/* libata-pmp.c */
+extern int sata_pmp_scr_read(struct ata_link *link, int reg, u32 *val);
+extern int sata_pmp_scr_write(struct ata_link *link, int reg, u32 val);
+extern int sata_pmp_attach(struct ata_device *dev);
+
/* libata-sff.c */
#ifdef CONFIG_ATA_SFF
extern void ata_dev_select(struct ata_port *ap, unsigned int device,