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:
 "Kernel image size reduction and assorted fixes and other small
  improvements."

* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, doc: Assign a bootloader ID for "Minimal Linux Bootloader"
  x86, boot: Exclude cmdline.c if you can't use it
  x86, boot: Exclude early_serial_console.c if can't use it.
  x86, boot: Removed unused debug flag and set code
  x86, boot: Switch output functions from command-line flags to conditional compilation
  x86, boot: Changed error putstr path to match new debug_putstr format
  x86, boot: Wrap debug printing in a new debug_putstr function
  x86, boot: Removed quiet flag and switched quiet output to debug flag

5 files changed, 44 insertions, 27 deletions

diff --git a/Documentation/x86/boot.txt b/Documentation/x86/boot.txt
index 7c3a8801b7ce..473b32fd544e 100644
--- a/Documentation/x86/boot.txt
+++ b/Documentation/x86/boot.txt
@@ -363,7 +363,8 @@ Protocol:	2.00+
   ext_loader_type <- 0x05
   ext_loader_ver  <- 0x23
 
-  Assigned boot loader ids:
+  Assigned boot loader ids (hexadecimal):
+
         0  LILO                 (0x00 reserved for pre-2.00 bootloader)
         1  Loadlin
         2  bootsect-loader      (0x20, all other values reserved)
@@ -378,6 +379,8 @@ Protocol:	2.00+
         C  Arcturus Networks uCbootloader
         E  Extended             (see ext_loader_type)
         F  Special              (0xFF = undefined)
+       10  Reserved
+       11  Minimal Linux Bootloader <http://sebastian-plotz.blogspot.de>
 
   Please contact <hpa@zytor.com> if you need a bootloader ID
   value assigned.
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
index cb62f786990d..10f6b1178c68 100644
--- a/arch/x86/boot/compressed/cmdline.c
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -1,5 +1,7 @@
 #include "misc.h"
 
+#ifdef CONFIG_EARLY_PRINTK
+
 static unsigned long fs;
 static inline void set_fs(unsigned long seg)
 {
@@ -19,3 +21,5 @@ int cmdline_find_option_bool(const char *option)
 {
         return __cmdline_find_option_bool(real_mode->hdr.cmd_line_ptr, option);
 }
+
+#endif
diff --git a/arch/x86/boot/compressed/early_serial_console.c b/arch/x86/boot/compressed/early_serial_console.c
index 261e81fb9582..d3d003cb5481 100644
--- a/arch/x86/boot/compressed/early_serial_console.c
+++ b/arch/x86/boot/compressed/early_serial_console.c
@@ -1,5 +1,9 @@
 #include "misc.h"
 
+#ifdef CONFIG_EARLY_PRINTK
+
 int early_serial_base;
 
 #include "../early_serial_console.c"
+
+#endif
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 7116dcba0c9e..88f7ff6da404 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -108,8 +108,6 @@ static void error(char *m);
  * This is set up by the setup-routine at boot-time
  */
 struct boot_params *real_mode;          /* Pointer to real-mode data */
-static int quiet;
-static int debug;
 
 void *memset(void *s, int c, size_t n);
 void *memcpy(void *dest, const void *src, size_t n);
@@ -170,15 +168,11 @@ static void serial_putchar(int ch)
         outb(ch, early_serial_base + TXR);
 }
 
-void __putstr(int error, const char *s)
+void __putstr(const char *s)
 {
         int x, y, pos;
         char c;
 
-#ifndef CONFIG_X86_VERBOSE_BOOTUP
-        if (!error)
-                return;
-#endif
         if (early_serial_base) {
                 const char *str = s;
                 while (*str) {
@@ -265,9 +259,9 @@ void *memcpy(void *dest, const void *src, size_t n)
 
 static void error(char *x)
 {
-        __putstr(1, "\n\n");
-        __putstr(1, x);
-        __putstr(1, "\n\n -- System halted");
+        error_putstr("\n\n");
+        error_putstr(x);
+        error_putstr("\n\n -- System halted");
 
         while (1)
                 asm("hlt");
@@ -294,8 +288,7 @@ static void parse_elf(void *output)
                 return;
         }
 
-        if (!quiet)
-                putstr("Parsing ELF... ");
+        debug_putstr("Parsing ELF... ");
 
         phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum);
         if (!phdrs)
@@ -332,11 +325,6 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
 {
         real_mode = rmode;
 
-        if (cmdline_find_option_bool("quiet"))
-                quiet = 1;
-        if (cmdline_find_option_bool("debug"))
-                debug = 1;
-
         if (real_mode->screen_info.orig_video_mode == 7) {
                 vidmem = (char *) 0xb0000;
                 vidport = 0x3b4;
@@ -349,8 +337,7 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
         cols = real_mode->screen_info.orig_video_cols;
 
         console_init();
-        if (debug)
-                putstr("early console in decompress_kernel\n");
+        debug_putstr("early console in decompress_kernel\n");
 
         free_mem_ptr     = heap;        /* Heap */
         free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
@@ -369,11 +356,9 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
                 error("Wrong destination address");
 #endif
 
-        if (!quiet)
-                putstr("\nDecompressing Linux... ");
+        debug_putstr("\nDecompressing Linux... ");
         decompress(input_data, input_len, NULL, NULL, output, NULL, error);
         parse_elf(output);
-        if (!quiet)
-                putstr("done.\nBooting the kernel.\n");
+        debug_putstr("done.\nBooting the kernel.\n");
         return;
 }
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 3f19c81a6203..0e6dc0ee0eea 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -24,9 +24,21 @@
 
 /* misc.c */
 extern struct boot_params *real_mode;           /* Pointer to real-mode data */
-void __putstr(int error, const char *s);
-#define putstr(__x)  __putstr(0, __x)
-#define puts(__x)  __putstr(0, __x)
+void __putstr(const char *s);
+#define error_putstr(__x)  __putstr(__x)
+
+#ifdef CONFIG_X86_VERBOSE_BOOTUP
+
+#define debug_putstr(__x)  __putstr(__x)
+
+#else
+
+static inline void debug_putstr(const char *s)
+{ }
+
+#endif
+
+#ifdef CONFIG_EARLY_PRINTK
 
 /* cmdline.c */
 int cmdline_find_option(const char *option, char *buffer, int bufsize);
@@ -36,4 +48,13 @@ int cmdline_find_option_bool(const char *option);
 extern int early_serial_base;
 void console_init(void);
 
+#else
+
+/* early_serial_console.c */
+static const int early_serial_base;
+static inline void console_init(void)
+{ }
+
+#endif
+
 #endif