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Merge branch 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot changes from Ingo Molnar:
 "A number of cleanups"

* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Standardize strcmp()
  x86/boot/64: Remove pointless early_printk() message
  x86/boot/video: Move the 'video_segment' variable to video.c
Linus Torvalds 10 年之前
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當前提交
8f74bc5ff0
共有 5 個文件被更改,包括 4 次插入8 次删除
  1. 1 1
      arch/x86/boot/string.c
  2. 1 3
      arch/x86/boot/video-mode.c
  3. 2 0
      arch/x86/boot/video.c
  4. 0 1
      arch/x86/boot/video.h
  5. 0 3
      arch/x86/kernel/head64.c

+ 1 - 1
arch/x86/boot/string.c

@@ -30,7 +30,7 @@ int strcmp(const char *str1, const char *str2)
 	int delta = 0;
 	int delta = 0;
 
 
 	while (*s1 || *s2) {
 	while (*s1 || *s2) {
-		delta = *s2 - *s1;
+		delta = *s1 - *s2;
 		if (delta)
 		if (delta)
 			return delta;
 			return delta;
 		s1++;
 		s1++;

+ 1 - 3
arch/x86/boot/video-mode.c

@@ -22,10 +22,8 @@
 /*
 /*
  * Common variables
  * Common variables
  */
  */
-int adapter;			/* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
-u16 video_segment;
+int adapter;		/* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
 int force_x, force_y;	/* Don't query the BIOS for cols/rows */
 int force_x, force_y;	/* Don't query the BIOS for cols/rows */
-
 int do_restore;		/* Screen contents changed during mode flip */
 int do_restore;		/* Screen contents changed during mode flip */
 int graphic_mode;	/* Graphic mode with linear frame buffer */
 int graphic_mode;	/* Graphic mode with linear frame buffer */
 
 

+ 2 - 0
arch/x86/boot/video.c

@@ -17,6 +17,8 @@
 #include "video.h"
 #include "video.h"
 #include "vesa.h"
 #include "vesa.h"
 
 
+static u16 video_segment;
+
 static void store_cursor_position(void)
 static void store_cursor_position(void)
 {
 {
 	struct biosregs ireg, oreg;
 	struct biosregs ireg, oreg;

+ 0 - 1
arch/x86/boot/video.h

@@ -91,7 +91,6 @@ int mode_defined(u16 mode);	/* video.c */
 #define ADAPTER_VGA	2
 #define ADAPTER_VGA	2
 
 
 extern int adapter;
 extern int adapter;
-extern u16 video_segment;
 extern int force_x, force_y;	/* Don't query the BIOS for cols/rows */
 extern int force_x, force_y;	/* Don't query the BIOS for cols/rows */
 extern int do_restore;		/* Restore screen contents */
 extern int do_restore;		/* Restore screen contents */
 extern int graphic_mode;	/* Graphics mode with linear frame buffer */
 extern int graphic_mode;	/* Graphics mode with linear frame buffer */

+ 0 - 3
arch/x86/kernel/head64.c

@@ -177,9 +177,6 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data)
 	 */
 	 */
 	load_ucode_bsp();
 	load_ucode_bsp();
 
 
-	if (console_loglevel >= CONSOLE_LOGLEVEL_DEBUG)
-		early_printk("Kernel alive\n");
-
 	clear_page(init_level4_pgt);
 	clear_page(init_level4_pgt);
 	/* set init_level4_pgt kernel high mapping*/
 	/* set init_level4_pgt kernel high mapping*/
 	init_level4_pgt[511] = early_level4_pgt[511];
 	init_level4_pgt[511] = early_level4_pgt[511];