commit 03056c88cf65ec8375753900246b36ae1c4b8a33
author Alexander van Heukelum <heukelum@mailshack.com> Sun Apr 06 14:47:00 2008 +0200
committer Ingo Molnar <mingo@elte.hu> Thu Apr 17 17:41:36 2008 +0200
tree 165231b99e6d353c32beb42dce90441321930015
parent 85bdddec5eaeb2464bf1cad6a17225416e65a8d6

x86: remove superfluous initialisation in boot code.

In arch/x86/boot/compressed/misc.c, the variable vidmem is
the only variable that ends up in de data segment. It's also
superfluous, because the first thing the code does is:

	if (RM_SCREEN_INFO.orig_video_mode == 7) {
		vidmem = (char *) 0xb0000;
		vidport = 0x3b4;
	} else {
		vidmem = (char *) 0xb8000;
		vidport = 0x3d4;
	}

This patch removes the initialisation.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/boot/compressed/misc.c

diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 9470a05..dad4e69 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -223,7 +223,7 @@
 #define HEAP_SIZE             0x4000
 #endif
 
-static char *vidmem = (char *)0xb8000;
+static char *vidmem;
 static int vidport;
 static int lines, cols;