ahci: make ahci_transmit_led_message into a function pointer

Create a new ata_port_operations function pointer called
transmit_led_message and give it the default value of
ahci_transmit_led_message. This allows AHCI controllers with
non-standard LED interfaces to use the existing em_ interface.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index c886dc87aa81..4ea55bb45deb 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -910,6 +910,9 @@ struct ata_port_operations {
         ssize_t (*sw_activity_show)(struct ata_device *dev, char *buf);
         ssize_t (*sw_activity_store)(struct ata_device *dev,
                                      enum sw_activity val);
+        ssize_t (*transmit_led_message)(struct ata_port *ap, u32 state,
+                                        ssize_t size);
+
         /*
          * Obsolete
          */