dax: Get rid of fs_dax_get_by_host() helper

[Vivek Goyal]

Looks like nobody is using fs_dax_get_by_host() except fs_dax_get_by_bdev()
and it can easily use dax_get_by_host() instead.

IIUC, fs_dax_get_by_host() was only introduced so that one could compile
with CONFIG_FS_DAX=n and CONFIG_DAX=m. fs_dax_get_by_bdev() achieves
the same purpose and hence it looks like fs_dax_get_by_host() is not
needed anymore.
 
Signed-off-by: Vivek Goyal <vgoyal@xxxxxxxxxx>
---
 drivers/dax/super.c |    2 +-
 include/linux/dax.h |   10 ----------
 2 files changed, 1 insertion(+), 11 deletions(-)

Index: rhvgoyal-linux-fuse/drivers/dax/super.c
===================================================================
--- rhvgoyal-linux-fuse.orig/drivers/dax/super.c	2020-01-03 11:19:57.616186062 -0500
+++ rhvgoyal-linux-fuse/drivers/dax/super.c	2020-01-03 11:20:08.941186062 -0500
@@ -61,7 +61,7 @@ struct dax_device *fs_dax_get_by_bdev(st
 {
 	if (!blk_queue_dax(bdev->bd_queue))
 		return NULL;
-	return fs_dax_get_by_host(bdev->bd_disk->disk_name);
+	return dax_get_by_host(bdev->bd_disk->disk_name);
 }
 EXPORT_SYMBOL_GPL(fs_dax_get_by_bdev);
 #endif
Index: rhvgoyal-linux-fuse/include/linux/dax.h
===================================================================
--- rhvgoyal-linux-fuse.orig/include/linux/dax.h	2020-01-03 11:20:05.603186062 -0500
+++ rhvgoyal-linux-fuse/include/linux/dax.h	2020-01-03 11:20:08.942186062 -0500
@@ -129,11 +129,6 @@ static inline bool generic_fsdax_support
 			sectors);
 }
 
-static inline struct dax_device *fs_dax_get_by_host(const char *host)
-{
-	return dax_get_by_host(host);
-}
-
 static inline void fs_put_dax(struct dax_device *dax_dev)
 {
 	put_dax(dax_dev);
@@ -160,11 +155,6 @@ static inline bool generic_fsdax_support
 	return false;
 }
 
-static inline struct dax_device *fs_dax_get_by_host(const char *host)
-{
-	return NULL;
-}
-
 static inline void fs_put_dax(struct dax_device *dax_dev)
 {
 }