Staging: hv: Get rid of the volatile qualifier for a variable in ring_buffer.c

Access to this variable is already serialized via a spin lock. Get
rid of the unnecessary volatile qualifier.
Signed-off-by: NK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: NHaiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: NAbhishek Kane <v-abkane@microsoft.com>
Signed-off-by: NHank Janssen <hjanssen@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/ring_buffer.c

@@ -364,7 +364,7 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
 	u32 totalbytes_towrite = 0;
 
 	struct scatterlist *sg;
-	volatile u32 next_write_location;
+	u32 next_write_location;
 	u64 prev_indices = 0;
 	unsigned long flags;