[PATCH] Fix linux banner utsname information

utsname information is shown in the linux banner, which also is used for
/proc/version (which can have different utsname values inside a uts
namespaces).  this patch makes the varying data arguments and changes the
string to a format string, using those arguments.

Signed-off-by: Herbert Poetzl <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

fs/proc/proc_misc.c

@@ -252,8 +252,8 @@ static int version_read_proc(char *page, char **start, off_t off,
 {
 	int len;
 
-	strcpy(page, linux_banner);
-	len = strlen(page);
+	len = sprintf(page, linux_banner,
+		utsname()->release, utsname()->version);
 	return proc_calc_metrics(page, start, off, count, eof, len);
 }
 

init/Makefile

@@ -15,6 +15,7 @@ clean-files := ../include/linux/compile.h
 
 # dependencies on generated files need to be listed explicitly
 
+$(obj)/main.o: include/linux/compile.h
 $(obj)/version.o: include/linux/compile.h
 
 # compile.h changes depending on hostname, generation number, etc,

init/main.c

@@ -50,6 +50,8 @@
 #include <linux/buffer_head.h>
 #include <linux/debug_locks.h>
 #include <linux/lockdep.h>
+#include <linux/utsrelease.h>
+#include <linux/compile.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -506,7 +508,7 @@ asmlinkage void __init start_kernel(void)
 	boot_cpu_init();
 	page_address_init();
 	printk(KERN_NOTICE);
-	printk(linux_banner);
+	printk(linux_banner, UTS_RELEASE, UTS_VERSION);
 	setup_arch(&command_line);
 	unwind_setup();
 	setup_per_cpu_areas();

init/version.c

@@ -35,5 +35,6 @@ struct uts_namespace init_uts_ns = {
 EXPORT_SYMBOL_GPL(init_uts_ns);
 
 const char linux_banner[] =
-	"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
-	LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
+	"Linux version %s (" LINUX_COMPILE_BY "@"
+	LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") %s\n";
+