| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __TOOLS_LINUX_KERNEL_H |
| #define __TOOLS_LINUX_KERNEL_H |
| |
| #include <stdarg.h> |
| #include <stddef.h> |
| #include <assert.h> |
| #include <linux/build_bug.h> |
| #include <linux/compiler.h> |
| #include <endian.h> |
| #include <byteswap.h> |
| |
| #ifndef UINT_MAX |
| #define UINT_MAX (~0U) |
| #endif |
| |
| #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) |
| |
| #define PERF_ALIGN(x, a) __PERF_ALIGN_MASK(x, (typeof(x))(a)-1) |
| #define __PERF_ALIGN_MASK(x, mask) (((x)+(mask))&~(mask)) |
| |
| #ifndef offsetof |
| #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) |
| #endif |
| |
| #ifndef container_of |
| /** |
| * container_of - cast a member of a structure out to the containing structure |
| * @ptr: the pointer to the member. |
| * @type: the type of the container struct this is embedded in. |
| * @member: the name of the member within the struct. |
| * |
| */ |
| #define container_of(ptr, type, member) ({ \ |
| const typeof(((type *)0)->member) * __mptr = (ptr); \ |
| (type *)((char *)__mptr - offsetof(type, member)); }) |
| #endif |
| |
| #ifndef max |
| #define max(x, y) ({ \ |
| typeof(x) _max1 = (x); \ |
| typeof(y) _max2 = (y); \ |
| (void) (&_max1 == &_max2); \ |
| _max1 > _max2 ? _max1 : _max2; }) |
| #endif |
| |
| #ifndef min |
| #define min(x, y) ({ \ |
| typeof(x) _min1 = (x); \ |
| typeof(y) _min2 = (y); \ |
| (void) (&_min1 == &_min2); \ |
| _min1 < _min2 ? _min1 : _min2; }) |
| #endif |
| |
| #ifndef roundup |
| #define roundup(x, y) ( \ |
| { \ |
| const typeof(y) __y = y; \ |
| (((x) + (__y - 1)) / __y) * __y; \ |
| } \ |
| ) |
| #endif |
| |
| #ifndef BUG_ON |
| #ifdef NDEBUG |
| #define BUG_ON(cond) do { if (cond) {} } while (0) |
| #else |
| #define BUG_ON(cond) assert(!(cond)) |
| #endif |
| #endif |
| #define BUG() BUG_ON(1) |
| |
| #if __BYTE_ORDER == __BIG_ENDIAN |
| #define cpu_to_le16 bswap_16 |
| #define cpu_to_le32 bswap_32 |
| #define cpu_to_le64 bswap_64 |
| #define le16_to_cpu bswap_16 |
| #define le32_to_cpu bswap_32 |
| #define le64_to_cpu bswap_64 |
| #define cpu_to_be16 |
| #define cpu_to_be32 |
| #define cpu_to_be64 |
| #define be16_to_cpu |
| #define be32_to_cpu |
| #define be64_to_cpu |
| #else |
| #define cpu_to_le16 |
| #define cpu_to_le32 |
| #define cpu_to_le64 |
| #define le16_to_cpu |
| #define le32_to_cpu |
| #define le64_to_cpu |
| #define cpu_to_be16 bswap_16 |
| #define cpu_to_be32 bswap_32 |
| #define cpu_to_be64 bswap_64 |
| #define be16_to_cpu bswap_16 |
| #define be32_to_cpu bswap_32 |
| #define be64_to_cpu bswap_64 |
| #endif |
| |
| int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); |
| int scnprintf(char * buf, size_t size, const char * fmt, ...); |
| int scnprintf_pad(char * buf, size_t size, const char * fmt, ...); |
| |
| #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) |
| |
| /* |
| * This looks more complex than it should be. But we need to |
| * get the type for the ~ right in round_down (it needs to be |
| * as wide as the result!), and we want to evaluate the macro |
| * arguments just once each. |
| */ |
| #define __round_mask(x, y) ((__typeof__(x))((y)-1)) |
| #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) |
| #define round_down(x, y) ((x) & ~__round_mask(x, y)) |
| |
| #define current_gfp_context(k) 0 |
| #define synchronize_rcu() |
| |
| #endif |