x86, setup: remove obsolete pre-Kconfig CONFIG_VIDEO_ variables

There were a set of pre-Kconfig configuration variables defined in the
video code.  There is absolutely no evidence that they have been
tweaked by anybody in modern history, so just get rid of them and hope
nobody notices.  If someone does complain, these should be made real
Kconfig variables.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

4 files changed, 3 insertions, 39 deletions

diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index c700147d6ffb..d7ef26ba4540 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -31,7 +31,6 @@ static inline void vesa_store_mode_params_graphics(void) {}
 
 static int vesa_probe(void)
 {
-#if defined(CONFIG_VIDEO_VESA) || defined(CONFIG_FIRMWARE_EDID)
         struct biosregs ireg, oreg;
         u16 mode;
         addr_t mode_ptr;
@@ -49,8 +48,7 @@ static int vesa_probe(void)
             vginfo.signature != VESA_MAGIC ||
             vginfo.version < 0x0102)
                 return 0;       /* Not present */
-#endif /* CONFIG_VIDEO_VESA || CONFIG_FIRMWARE_EDID */
-#ifdef CONFIG_VIDEO_VESA
+
         set_fs(vginfo.video_mode_ptr.seg);
         mode_ptr = vginfo.video_mode_ptr.off;
 
@@ -102,9 +100,6 @@ static int vesa_probe(void)
         }
 
         return nmodes;
-#else
-        return 0;
-#endif /* CONFIG_VIDEO_VESA */
 }
 
 static int vesa_set_mode(struct mode_info *mode)
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index 8f8d827e254d..819caa1f2008 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -47,14 +47,6 @@ static u8 vga_set_basic_mode(void)
 
         initregs(&ireg);
 
-#ifdef CONFIG_VIDEO_400_HACK
-        if (adapter >= ADAPTER_VGA) {
-                ireg.ax = 0x1202;
-                ireg.bx = 0x0030;
-                intcall(0x10, &ireg, NULL);
-        }
-#endif
-
         ax = 0x0f00;
         intcall(0x10, &ireg, &oreg);
         mode = oreg.al;
@@ -62,11 +54,9 @@ static u8 vga_set_basic_mode(void)
         set_fs(0);
         rows = rdfs8(0x484);    /* rows minus one */
 
-#ifndef CONFIG_VIDEO_400_HACK
         if ((oreg.ax == 0x5003 || oreg.ax == 0x5007) &&
             (rows == 0 || rows == 24))
                 return mode;
-#endif
 
         if (mode != 3 && mode != 7)
                 mode = 3;
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index bad728b76fc2..d42da3802499 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -221,7 +221,6 @@ static unsigned int mode_menu(void)
         }
 }
 
-#ifdef CONFIG_VIDEO_RETAIN
 /* Save screen content to the heap */
 static struct saved_screen {
         int x, y;
@@ -299,10 +298,6 @@ static void restore_screen(void)
         ireg.dl = saved.curx;
         intcall(0x10, &ireg, NULL);
 }
-#else
-#define save_screen()           ((void)0)
-#define restore_screen()        ((void)0)
-#endif
 
 void set_video(void)
 {
diff --git a/arch/x86/boot/video.h b/arch/x86/boot/video.h
index 5bb174a997fc..ff339c5db311 100644
--- a/arch/x86/boot/video.h
+++ b/arch/x86/boot/video.h
@@ -17,19 +17,8 @@
 
 #include <linux/types.h>
 
-/* Enable autodetection of SVGA adapters and modes. */
-#undef CONFIG_VIDEO_SVGA
-
-/* Enable autodetection of VESA modes */
-#define CONFIG_VIDEO_VESA
-
-/* Retain screen contents when switching modes */
-#define CONFIG_VIDEO_RETAIN
-
-/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */
-#undef CONFIG_VIDEO_400_HACK
-
-/* This code uses an extended set of video mode numbers. These include:
+/*
+ * This code uses an extended set of video mode numbers. These include:
  * Aliases for standard modes
  *      NORMAL_VGA (-1)
  *      EXTENDED_VGA (-2)
@@ -67,13 +56,8 @@
 /* The "recalculate timings" flag */
 #define VIDEO_RECALC 0x8000
 
-/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */
-#ifdef CONFIG_VIDEO_RETAIN
 void store_screen(void);
 #define DO_STORE() store_screen()
-#else
-#define DO_STORE() ((void)0)
-#endif /* CONFIG_VIDEO_RETAIN */
 
 /*
  * Mode table structures