[NET]: Add common helper functions to convert IPv6/IPv4 address string to network...

[safe/jmp/linux-2.6] / include / linux / kernel.h

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e6ee2d9..851aa1b 100644 (file)
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -24,11 +24,16 @@ extern const char linux_banner[];
 #define LONG_MAX       ((long)(~0UL>>1))
 #define LONG_MIN       (-LONG_MAX - 1)
 #define ULONG_MAX      (~0UL)
+#define LLONG_MAX      ((long long)(~0ULL>>1))
+#define LLONG_MIN      (-LLONG_MAX - 1)
+#define ULLONG_MAX     (~0ULL)
 
 #define STACK_MAGIC    0xdeadbeef
 
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
 #define ALIGN(x,a) (((x)+(a)-1)&~((a)-1))
+#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
+#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
 
 #define        KERN_EMERG      "<0>"   /* system is unusable                   */
 #define        KERN_ALERT      "<1>"   /* action must be taken immediately     */
@@ -75,7 +80,7 @@ extern int cond_resched(void);
 # define might_sleep() do { might_resched(); } while (0)
 #endif
 
-#define might_sleep_if(cond) do { if (unlikely(cond)) might_sleep(); } while (0)
+#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
 
 #define abs(x) ({                              \
                int __x = (x);                  \
@@ -87,10 +92,13 @@ extern int cond_resched(void);
                (__x < 0) ? -__x : __x;         \
        })
 
-extern struct notifier_block *panic_notifier_list;
+extern struct atomic_notifier_head panic_notifier_list;
 extern long (*panic_blink)(long time);
 NORET_TYPE void panic(const char * fmt, ...)
        __attribute__ ((NORET_AND format (printf, 1, 2)));
+extern void oops_enter(void);
+extern void oops_exit(void);
+extern int oops_may_print(void);
 fastcall NORET_TYPE void do_exit(long error_code)
        ATTRIB_NORET;
 NORET_TYPE void complete_and_exit(struct completion *, long)
@@ -111,6 +119,8 @@ extern int scnprintf(char * buf, size_t size, const char * fmt, ...)
        __attribute__ ((format (printf, 3, 4)));
 extern int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
        __attribute__ ((format (printf, 3, 0)));
+extern char *kasprintf(gfp_t gfp, const char *fmt, ...)
+       __attribute__ ((format (printf, 2, 3)));
 
 extern int sscanf(const char *, const char *, ...)
        __attribute__ ((format (scanf, 2, 3)));
@@ -121,6 +131,7 @@ 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 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 session_of_pgrp(int pgrp);
@@ -151,9 +162,10 @@ static inline int __attribute_pure__ long_log2(unsigned long x)
        return r;
 }
 
-static inline unsigned long __attribute_const__ roundup_pow_of_two(unsigned long x)
+static inline unsigned long
+__attribute_const__ roundup_pow_of_two(unsigned long x)
 {
-       return (1UL << fls(x - 1));
+       return 1UL << fls_long(x - 1);
 }
 
 extern int printk_ratelimit(void);
@@ -172,7 +184,7 @@ static inline void console_verbose(void)
 
 extern void bust_spinlocks(int yes);
 extern int oops_in_progress;           /* If set, an oops, panic(), BUG() or die() is in progress */
-extern __deprecated_for_modules int panic_timeout;
+extern int panic_timeout;
 extern int panic_on_oops;
 extern int tainted;
 extern const char *print_tainted(void);
@@ -185,6 +197,7 @@ extern enum system_states {
        SYSTEM_HALT,
        SYSTEM_POWER_OFF,
        SYSTEM_RESTART,
+       SYSTEM_SUSPEND_DISK,
 } system_state;
 
 #define TAINT_PROPRIETARY_MODULE       (1<<0)
@@ -197,6 +210,7 @@ extern enum system_states {
 extern void dump_stack(void);
 
 #ifdef DEBUG
+/* If you are writing a driver, please use dev_dbg instead */
 #define pr_debug(fmt,arg...) \
        printk(KERN_DEBUG fmt,##arg)
 #else
@@ -216,6 +230,7 @@ extern void dump_stack(void);
        ((unsigned char *)&addr)[1], \
        ((unsigned char *)&addr)[2], \
        ((unsigned char *)&addr)[3]
+#define NIPQUAD_FMT "%u.%u.%u.%u"
 
 #define NIP6(addr) \
        ntohs((addr).s6_addr16[0]), \
@@ -226,6 +241,8 @@ extern void dump_stack(void);
        ntohs((addr).s6_addr16[5]), \
        ntohs((addr).s6_addr16[6]), \
        ntohs((addr).s6_addr16[7])
+#define NIP6_FMT "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x"
+#define NIP6_SEQFMT "%04x%04x%04x%04x%04x%04x%04x%04x"
 
 #if defined(__LITTLE_ENDIAN)
 #define HIPQUAD(addr) \
@@ -322,11 +339,11 @@ struct sysinfo {
 /* Force a compilation error if condition is true */
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 
-#ifdef CONFIG_SYSCTL
-extern int randomize_va_space;
-#else
-#define randomize_va_space 1
-#endif
+/* Force a compilation error if condition is true, but also produce a
+   result (of value 0 and type size_t), so the expression can be used
+   e.g. in a structure initializer (or where-ever else comma expressions
+   aren't permitted). */
+#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
 
 /* Trap pasters of __FUNCTION__ at compile-time */
 #define __FUNCTION__ (__func__)