pmem, dax: have direct_access use __pmem annotation

Update the annotation for the kaddr pointer returned by direct_access()
so that it is a __pmem pointer.  This is consistent with the PMEM driver
and with how this direct_access() pointer is used in the DAX code.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index ee90db17b097..a2be2a66dab6 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -141,13 +141,14 @@ axon_ram_make_request(struct request_queue *queue, struct bio *bio)
  */
 static long
 axon_ram_direct_access(struct block_device *device, sector_t sector,
-                       void **kaddr, unsigned long *pfn, long size)
+                       void __pmem **kaddr, unsigned long *pfn, long size)
 {
         struct axon_ram_bank *bank = device->bd_disk->private_data;
         loff_t offset = (loff_t)sector << AXON_RAM_SECTOR_SHIFT;
+        void *addr = (void *)(bank->ph_addr + offset);
 
-        *kaddr = (void *)(bank->ph_addr + offset);
-        *pfn = virt_to_phys(*kaddr) >> PAGE_SHIFT;
+        *kaddr = (void __pmem *)addr;
+        *pfn = virt_to_phys(addr) >> PAGE_SHIFT;
 
         return bank->size - offset;
 }