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-rw-r--r--include/linux/kernel.h113
1 files changed, 78 insertions, 35 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 2651f805ba6..dc7e0d0a647 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -16,6 +16,7 @@
#include <linux/log2.h>
#include <linux/typecheck.h>
#include <linux/ratelimit.h>
+#include <linux/dynamic_printk.h>
#include <asm/byteorder.h>
#include <asm/bug.h>
@@ -115,6 +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
*
@@ -125,8 +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
@@ -182,7 +183,7 @@ extern int vsscanf(const char *, const char *, va_list)
extern int get_option(char **str, int *pint);
extern char *get_options(const char *str, int nints, int *ints);
-extern unsigned long long memparse(char *ptr, char **retptr);
+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);
@@ -190,6 +191,30 @@ extern int kernel_text_address(unsigned long addr);
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)));
@@ -213,6 +238,9 @@ static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
{ return false; }
#endif
+extern int printk_needs_cpu(int cpu);
+extern void printk_tick(void);
+
extern void asmlinkage __attribute__((format(printf, 1, 2)))
early_printk(const char *fmt, ...);
@@ -235,9 +263,10 @@ extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in
extern int panic_timeout;
extern int panic_on_oops;
extern int panic_on_unrecovered_nmi;
-extern int tainted;
extern const char *print_tainted(void);
-extern void add_taint(unsigned);
+extern void add_taint(unsigned flag);
+extern int test_taint(unsigned flag);
+extern unsigned long get_taint(void);
extern int root_mountflags;
/* Values used for system_state */
@@ -250,16 +279,17 @@ extern enum system_states {
SYSTEM_SUSPEND_DISK,
} system_state;
-#define TAINT_PROPRIETARY_MODULE (1<<0)
-#define TAINT_FORCED_MODULE (1<<1)
-#define TAINT_UNSAFE_SMP (1<<2)
-#define TAINT_FORCED_RMMOD (1<<3)
-#define TAINT_MACHINE_CHECK (1<<4)
-#define TAINT_BAD_PAGE (1<<5)
-#define TAINT_USER (1<<6)
-#define TAINT_DIE (1<<7)
-#define TAINT_OVERRIDDEN_ACPI_TABLE (1<<8)
-#define TAINT_WARN (1<<9)
+#define TAINT_PROPRIETARY_MODULE 0
+#define TAINT_FORCED_MODULE 1
+#define TAINT_UNSAFE_SMP 2
+#define TAINT_FORCED_RMMOD 3
+#define TAINT_MACHINE_CHECK 4
+#define TAINT_BAD_PAGE 5
+#define TAINT_USER 6
+#define TAINT_DIE 7
+#define TAINT_OVERRIDDEN_ACPI_TABLE 8
+#define TAINT_WARN 9
+#define TAINT_CRAP 10
extern void dump_stack(void) __cold;
@@ -288,28 +318,36 @@ 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)
-
-#ifdef DEBUG
+#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 */
-#define pr_debug(fmt, arg...) \
- printk(KERN_DEBUG fmt, ##arg)
+#if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
+#define pr_debug(fmt, ...) do { \
+ dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
+ } while (0)
+#elif defined(DEBUG)
+#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
/*
@@ -486,4 +524,9 @@ struct sysinfo {
#define NUMA_BUILD 0
#endif
+/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
+#ifdef CONFIG_FTRACE_MCOUNT_RECORD
+# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD
+#endif
+
#endif