X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fprintk.c;h=01b58d7d17ff763d50f92cb80b66e8ffe67dad4f;hb=94e7b1c5ff2055571703e38b059afffe17658432;hp=1498689548d1e63bea6dfeb83dd9f1d8bb49fa90;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=linux-2.6

diff --git a/kernel/printk.c b/kernel/printk.c
index 1498689548..01b58d7d17 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -85,10 +85,6 @@ static int console_locked;
  */
 static DEFINE_SPINLOCK(logbuf_lock);
 
-static char __log_buf[__LOG_BUF_LEN];
-static char *log_buf = __log_buf;
-static int log_buf_len = __LOG_BUF_LEN;
-
 #define LOG_BUF_MASK	(log_buf_len-1)
 #define LOG_BUF(idx) (log_buf[(idx) & LOG_BUF_MASK])
 
@@ -99,7 +95,6 @@ static int log_buf_len = __LOG_BUF_LEN;
 static unsigned long log_start;	/* Index into log_buf: next char to be read by syslog() */
 static unsigned long con_start;	/* Index into log_buf: next char to be sent to consoles */
 static unsigned long log_end;	/* Index into log_buf: most-recently-written-char + 1 */
-static unsigned long logged_chars; /* Number of chars produced since last read+clear operation */
 
 /*
  *	Array of consoles built from command line options (console=)
@@ -120,6 +115,13 @@ static int preferred_console = -1;
 /* Flag: console code may call schedule() */
 static int console_may_schedule;
 
+#ifdef CONFIG_PRINTK
+
+static char __log_buf[__LOG_BUF_LEN];
+static char *log_buf = __log_buf;
+static int log_buf_len = __LOG_BUF_LEN;
+static unsigned long logged_chars; /* Number of chars produced since last read+clear operation */
+
 /*
  *	Setup a list of consoles. Called from init/main.c
  */
@@ -158,42 +160,6 @@ static int __init console_setup(char *str)
 
 __setup("console=", console_setup);
 
-/**
- * add_preferred_console - add a device to the list of preferred consoles.
- *
- * The last preferred console added will be used for kernel messages
- * and stdin/out/err for init.  Normally this is used by console_setup
- * above to handle user-supplied console arguments; however it can also
- * be used by arch-specific code either to override the user or more
- * commonly to provide a default console (ie from PROM variables) when
- * the user has not supplied one.
- */
-int __init add_preferred_console(char *name, int idx, char *options)
-{
-	struct console_cmdline *c;
-	int i;
-
-	/*
-	 *	See if this tty is not yet registered, and
-	 *	if we have a slot free.
-	 */
-	for(i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++)
-		if (strcmp(console_cmdline[i].name, name) == 0 &&
-			  console_cmdline[i].index == idx) {
-				selected_console = i;
-				return 0;
-		}
-	if (i == MAX_CMDLINECONSOLES)
-		return -E2BIG;
-	selected_console = i;
-	c = &console_cmdline[i];
-	memcpy(c->name, name, sizeof(c->name));
-	c->name[sizeof(c->name) - 1] = 0;
-	c->options = options;
-	c->index = idx;
-	return 0;
-}
-
 static int __init log_buf_len_setup(char *str)
 {
 	unsigned long size = memparse(str, &str);
@@ -535,6 +501,7 @@ __setup("time", printk_time_setup);
  * then changes console_loglevel may break. This is because console_loglevel
  * is inspected when the actual printing occurs.
  */
+
 asmlinkage int printk(const char *fmt, ...)
 {
 	va_list args;
@@ -655,6 +622,54 @@ out:
 EXPORT_SYMBOL(printk);
 EXPORT_SYMBOL(vprintk);
 
+#else
+
+asmlinkage long sys_syslog(int type, char __user * buf, int len)
+{
+	return 0;
+}
+
+int do_syslog(int type, char __user * buf, int len) { return 0; }
+static void call_console_drivers(unsigned long start, unsigned long end) {}
+
+#endif
+
+/**
+ * add_preferred_console - add a device to the list of preferred consoles.
+ *
+ * The last preferred console added will be used for kernel messages
+ * and stdin/out/err for init.  Normally this is used by console_setup
+ * above to handle user-supplied console arguments; however it can also
+ * be used by arch-specific code either to override the user or more
+ * commonly to provide a default console (ie from PROM variables) when
+ * the user has not supplied one.
+ */
+int __init add_preferred_console(char *name, int idx, char *options)
+{
+	struct console_cmdline *c;
+	int i;
+
+	/*
+	 *	See if this tty is not yet registered, and
+	 *	if we have a slot free.
+	 */
+	for(i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++)
+		if (strcmp(console_cmdline[i].name, name) == 0 &&
+			  console_cmdline[i].index == idx) {
+				selected_console = i;
+				return 0;
+		}
+	if (i == MAX_CMDLINECONSOLES)
+		return -E2BIG;
+	selected_console = i;
+	c = &console_cmdline[i];
+	memcpy(c->name, name, sizeof(c->name));
+	c->name[sizeof(c->name) - 1] = 0;
+	c->options = options;
+	c->index = idx;
+	return 0;
+}
+
 /**
  * acquire_console_sem - lock the console system for exclusive use.
  *
@@ -931,7 +946,7 @@ int unregister_console(struct console * console)
 	return res;
 }
 EXPORT_SYMBOL(unregister_console);
-	
+
 /**
  * tty_write_message - write a message to a certain tty, not just the console.
  *