--- v12
+++ v8
@@ -60,33 +60,7 @@
 in separate patch.
 fix above things in v8. 
 
-V8
-This contains coding error when switch to use new buffer. fix it in v9.
-
-V9
-It didn't make things much clearer, it needs add more comments for new added buf.
-Add use lock to protect new added buffer. fix in v10.
-
-V10
-Remove 'char outchar' and its lock from hvc_struct, adjust hvc_struct and use
-pahole to display the struct layout.
-fix it in v11.
-
-V11
-Fix early console print issue, which is broken by v11, in v12.
-
-********TEST STEPS*********
-1, config guest console=hvc0
-2, start guest
-3, login guest
-    Welcome to Buildroot
-    buildroot login: root
-    # 
-    # cat /proc/cmdline 
-    console=hvc0 root=/dev/vda rw init=/sbin/init
-    #
-
-drivers/tty/hvc/hvc_console.c | 48 ++++++++++++++++++++++++-----------
-drivers/tty/hvc/hvc_console.h | 30 +++++++++++++++++++++-
-drivers/char/virtio_console.c | 12 ++----------
+drivers/tty/hvc/hvc_console.c | 27 ++++++++++++---------------
+drivers/tty/hvc/hvc_console.h | 16 ++++++++++++++--
+drivers/tty/hvc/hvc_console.h | 16 ++++++++++++--
 3 file changed