Merge branches 'core/debug', 'core/futexes', 'core/locking', 'core/rcu', 'core/signal...

[sfrench/cifs-2.6.git] / include / linux / kernel.h

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 94d17ff64c5a3b48c0f6716d29b9832d6a896551..269df5a17b30af1b7349c131da05abec8aa95046 100644 (file)
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -116,6 +116,8 @@ extern int _cond_resched(void);
 # define might_resched() do { } while (0)
 #endif
 
+#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
+  void __might_sleep(char *file, int line);
 /**
  * might_sleep - annotation for functions that can sleep
  *
@@ -126,8 +128,6 @@ extern int _cond_resched(void);
  * be bitten later when the calling function happens to sleep when it is not
  * supposed to.
  */
-#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
-  void __might_sleep(char *file, int line);
 # define might_sleep() \
        do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
 #else
@@ -141,6 +141,15 @@ extern int _cond_resched(void);
                (__x < 0) ? -__x : __x;         \
        })
 
+#ifdef CONFIG_PROVE_LOCKING
+void might_fault(void);
+#else
+static inline void might_fault(void)
+{
+       might_sleep();
+}
+#endif
+
 extern struct atomic_notifier_head panic_notifier_list;
 extern long (*panic_blink)(long time);
 NORET_TYPE void panic(const char * fmt, ...)
@@ -188,9 +197,35 @@ extern unsigned long long memparse(const char *ptr, char **retptr);
 extern int core_kernel_text(unsigned long addr);
 extern int __kernel_text_address(unsigned long addr);
 extern int kernel_text_address(unsigned long addr);
+extern int func_ptr_is_kernel_text(void *ptr);
+
 struct pid;
 extern struct pid *session_of_pgrp(struct pid *pgrp);
 
+/*
+ * FW_BUG
+ * Add this to a message where you are sure the firmware is buggy or behaves
+ * really stupid or out of spec. Be aware that the responsible BIOS developer
+ * should be able to fix this issue or at least get a concrete idea of the
+ * problem by reading your message without the need of looking at the kernel
+ * code.
+ * 
+ * Use it for definite and high priority BIOS bugs.
+ *
+ * FW_WARN
+ * Use it for not that clear (e.g. could the kernel messed up things already?)
+ * and medium priority BIOS bugs.
+ *
+ * FW_INFO
+ * Use this one if you want to tell the user or vendor about something
+ * suspicious, but generally harmless related to the firmware.
+ *
+ * Use it for information or very low priority BIOS bugs.
+ */
+#define FW_BUG         "[Firmware Bug]: "
+#define FW_WARN                "[Firmware Warn]: "
+#define FW_INFO                "[Firmware Info]: "
+
 #ifdef CONFIG_PRINTK
 asmlinkage int vprintk(const char *fmt, va_list args)
        __attribute__ ((format (printf, 1, 0)));
@@ -294,32 +329,36 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
        return buf;
 }
 
-#define pr_emerg(fmt, arg...) \
-       printk(KERN_EMERG fmt, ##arg)
-#define pr_alert(fmt, arg...) \
-       printk(KERN_ALERT fmt, ##arg)
-#define pr_crit(fmt, arg...) \
-       printk(KERN_CRIT fmt, ##arg)
-#define pr_err(fmt, arg...) \
-       printk(KERN_ERR fmt, ##arg)
-#define pr_warning(fmt, arg...) \
-       printk(KERN_WARNING fmt, ##arg)
-#define pr_notice(fmt, arg...) \
-       printk(KERN_NOTICE fmt, ##arg)
-#define pr_info(fmt, arg...) \
-       printk(KERN_INFO fmt, ##arg)
+#ifndef pr_fmt
+#define pr_fmt(fmt) fmt
+#endif
+
+#define pr_emerg(fmt, ...) \
+        printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_alert(fmt, ...) \
+        printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_crit(fmt, ...) \
+        printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_err(fmt, ...) \
+        printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_warning(fmt, ...) \
+        printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_notice(fmt, ...) \
+        printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_info(fmt, ...) \
+        printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 
 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
 #define pr_debug(fmt, ...) do { \
-       dynamic_pr_debug(fmt, ##__VA_ARGS__); \
+       dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
        } while (0)
 #elif defined(DEBUG)
-#define pr_debug(fmt, arg...) \
-       printk(KERN_DEBUG fmt, ##arg)
+#define pr_debug(fmt, ...) \
+       printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
-#define pr_debug(fmt, arg...) \
-       ({ if (0) printk(KERN_DEBUG fmt, ##arg); 0; })
+#define pr_debug(fmt, ...) \
+       ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
 #endif
 
 /*