x86: remove superfluous initialisation in boot code.
authorAlexander van Heukelum <heukelum@mailshack.com>
Sun, 6 Apr 2008 12:47:00 +0000 (14:47 +0200)
committerIngo Molnar <mingo@elte.hu>
Thu, 17 Apr 2008 15:41:36 +0000 (17:41 +0200)
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

index 9470a05..dad4e69 100644 (file)
@@ -223,7 +223,7 @@ static memptr free_mem_end_ptr;
 #define HEAP_SIZE             0x4000
 #endif
 
-static char *vidmem = (char *)0xb8000;
+static char *vidmem;
 static int vidport;
 static int lines, cols;