mei: introduce mei_data2slots wrapper
Introduce mei_data2slots wrapper for sake of
readability. This wrapper close up the open code
for computing slots from a message length:
rond up dwords count from payload and header byte size
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index cd9b778..fb5c7db 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -50,6 +50,12 @@
return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
}
+/* get slots (dwords) from a message length + header (bytes) */
+static inline unsigned char mei_data2slots(size_t length)
+{
+ return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
+}
+
int mei_count_full_read_slots(struct mei_device *dev);