Staging: hv: remove duplicated osd.o inclusions

Now that we have properly prefixed the osd.c functions, we don't need to
include it in each of the modules.  So only build it into the hv_vmbus
module.

Export the symbols that the other hv_ modules need, so that they can
properly find them.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/Makefile

@@ -4,6 +4,6 @@ obj-$(CONFIG_HYPERV_BLOCK)	+= hv_blkvsc.o
 obj-$(CONFIG_HYPERV_NET)	+= hv_netvsc.o
 
 hv_vmbus-objs := vmbus_drv.o osd.o Sources.o
-hv_storvsc-objs := storvsc_drv.o osd.o StorVsc.o
-hv_blkvsc-objs := blkvsc_drv.o osd.o BlkVsc.o
-hv_netvsc-objs := netvsc_drv.o osd.o NetVsc.o RndisFilter.o
+hv_storvsc-objs := storvsc_drv.o StorVsc.o
+hv_blkvsc-objs := blkvsc_drv.o BlkVsc.o
+hv_netvsc-objs := netvsc_drv.o NetVsc.o RndisFilter.o

drivers/staging/hv/osd.c

@@ -79,13 +79,15 @@ void *osd_PageAlloc(unsigned int count)
 	/* if (p) memset(p, 0, PAGE_SIZE); */
 	/* return p; */
 }
+EXPORT_SYMBOL_GPL(osd_PageAlloc);
 
 void osd_PageFree(void* page, unsigned int count)
 {
 	free_pages((unsigned long)page, get_order(count * PAGE_SIZE));
 	/*struct page* p = virt_to_page(page);
 	__free_page(p);*/
 }
+EXPORT_SYMBOL_GPL(osd_PageFree);
 
 struct osd_waitevent *osd_WaitEventCreate(void)
 {
@@ -99,12 +101,14 @@ struct osd_waitevent *osd_WaitEventCreate(void)
 	init_waitqueue_head(&wait->event);
 	return wait;
 }
+EXPORT_SYMBOL_GPL(osd_WaitEventCreate);
 
 void osd_WaitEventSet(struct osd_waitevent *waitEvent)
 {
 	waitEvent->condition = 1;
 	wake_up_interruptible(&waitEvent->event);
 }
+EXPORT_SYMBOL_GPL(osd_WaitEventSet);
 
 int osd_WaitEventWait(struct osd_waitevent *waitEvent)
 {
@@ -115,6 +119,7 @@ int osd_WaitEventWait(struct osd_waitevent *waitEvent)
 	waitEvent->condition = 0;
 	return ret;
 }
+EXPORT_SYMBOL_GPL(osd_WaitEventWait);
 
 int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent, u32 TimeoutInMs)
 {
@@ -126,6 +131,7 @@ int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent, u32 TimeoutInMs)
 	waitEvent->condition = 0;
 	return ret;
 }
+EXPORT_SYMBOL_GPL(osd_WaitEventWaitEx);
 
 static void osd_callback_work(struct work_struct *work)
 {