diff options
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 93 |
1 files changed, 25 insertions, 68 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index cee8fe87e9f4..5b46924fdff5 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -13,6 +13,7 @@ #include <linux/stdarg.h> #include <linux/align.h> +#include <linux/array_size.h> #include <linux/limits.h> #include <linux/linkage.h> #include <linux/stddef.h> @@ -32,67 +33,15 @@ #include <linux/sprintf.h> #include <linux/static_call_types.h> #include <linux/instruction_pointer.h> +#include <linux/util_macros.h> +#include <linux/wordpart.h> + #include <asm/byteorder.h> #include <uapi/linux/kernel.h> #define STACK_MAGIC 0xdeadbeef -/** - * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value - * @x: value to repeat - * - * NOTE: @x is not checked for > 0xff; larger values produce odd results. - */ -#define REPEAT_BYTE(x) ((~0ul / 0xff) * (x)) - -/* generic data direction definitions */ -#define READ 0 -#define WRITE 1 - -/** - * ARRAY_SIZE - get the number of elements in array @arr - * @arr: array to be sized - */ -#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) - -#define PTR_IF(cond, ptr) ((cond) ? (ptr) : NULL) - -#define u64_to_user_ptr(x) ( \ -{ \ - typecheck(u64, (x)); \ - (void __user *)(uintptr_t)(x); \ -} \ -) - -/** - * upper_32_bits - return bits 32-63 of a number - * @n: the number we're accessing - * - * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress - * the "right shift count >= width of type" warning when that quantity is - * 32-bits. - */ -#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) - -/** - * lower_32_bits - return bits 0-31 of a number - * @n: the number we're accessing - */ -#define lower_32_bits(n) ((u32)((n) & 0xffffffff)) - -/** - * upper_16_bits - return bits 16-31 of a number - * @n: the number we're accessing - */ -#define upper_16_bits(n) ((u16)((n) >> 16)) - -/** - * lower_16_bits - return bits 0-15 of a number - * @n: the number we're accessing - */ -#define lower_16_bits(n) ((u16)((n) & 0xffff)) - struct completion; struct user; @@ -204,12 +153,6 @@ static inline void might_fault(void) { } void do_exit(long error_code) __noreturn; -extern int get_option(char **str, int *pint); -extern char *get_options(const char *str, int nints, int *ints); -extern unsigned long long memparse(const char *ptr, char **retptr); -extern bool parse_option_str(const char *str, const char *option); -extern char *next_arg(char *args, char **param, char **val); - extern int core_kernel_text(unsigned long addr); extern int __kernel_text_address(unsigned long addr); extern int kernel_text_address(unsigned long addr); @@ -221,11 +164,23 @@ extern int root_mountflags; extern bool early_boot_irqs_disabled; -/* - * Values used for system_state. Ordering of the states must not be changed +/** + * enum system_states - Values used for system_state. + * + * @SYSTEM_BOOTING: %0, no init needed + * @SYSTEM_SCHEDULING: system is ready for scheduling; OK to use RCU + * @SYSTEM_FREEING_INITMEM: system is freeing all of initmem; almost running + * @SYSTEM_RUNNING: system is up and running + * @SYSTEM_HALT: system entered clean system halt state + * @SYSTEM_POWER_OFF: system entered shutdown/clean power off state + * @SYSTEM_RESTART: system entered emergency power off or normal restart + * @SYSTEM_SUSPEND: system entered suspend or hibernate state + * + * Note: + * Ordering of the states must not be changed * as code checks for <, <=, >, >= STATE. */ -extern enum system_states { +enum system_states { SYSTEM_BOOTING, SYSTEM_SCHEDULING, SYSTEM_FREEING_INITMEM, @@ -234,7 +189,8 @@ extern enum system_states { SYSTEM_POWER_OFF, SYSTEM_RESTART, SYSTEM_SUSPEND, -} system_state; +}; +extern enum system_states system_state; /* * General tracing related utility functions - trace_printk(), @@ -260,6 +216,7 @@ enum ftrace_dump_mode { DUMP_NONE, DUMP_ALL, DUMP_ORIG, + DUMP_PARAM, }; #ifdef CONFIG_TRACING @@ -429,9 +386,9 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ -#ifdef CONFIG_FTRACE_MCOUNT_RECORD -# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD +/* Rebuild everything on CONFIG_DYNAMIC_FTRACE */ +#ifdef CONFIG_DYNAMIC_FTRACE +# define REBUILD_DUE_TO_DYNAMIC_FTRACE #endif /* Permissions on a sysfs file: you didn't miss the 0 prefix did you? */ |