[Xen-changelog] Use memmove instead of memcpy for overlapping areas (console scroll).

[Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 6692dd873e21d74073a3c61d5905e55ee0ffd8be
# Parent  3c05406f5e0acc37eb3e59311c7d1c3cf245dc29
Use memmove instead of memcpy for overlapping areas (console scroll).
Use memset instead of memcpy to clear line.

Signed-off-by: Tristan Gingold <tristan.gingold@xxxxxxxx>

diff -r 3c05406f5e0a -r 6692dd873e21 xen/drivers/char/console.c
--- a/xen/drivers/char/console.c        Thu Apr 13 10:24:00 2006
+++ b/xen/drivers/char/console.c        Thu Apr 13 10:25:03 2006
@@ -180,12 +180,10 @@
 
     if (ypos >= LINES)
     {
-        static char zeroarr[2*COLUMNS] = { 0 };
         ypos = LINES-1;
-        memcpy((char*)video, 
-               (char*)video + 2*COLUMNS, (LINES-1)*2*COLUMNS);
-        memcpy((char*)video + (LINES-1)*2*COLUMNS, 
-               zeroarr, 2*COLUMNS);
+        memmove((char*)video, 
+                (char*)video + 2*COLUMNS, (LINES-1)*2*COLUMNS);
+        memset((char*)video + (LINES-1)*2*COLUMNS, 0, 2*COLUMNS);
     }
 }
 

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