| /* SPDX-License-Identifier: GPL-2.0-only */ |
| #ifndef HASH_H |
| #define HASH_H |
| |
| static inline unsigned int hash_str(const char *s) |
| { |
| /* fnv32 hash */ |
| unsigned int hash = 2166136261U; |
| |
| for (; *s; s++) |
| hash = (hash ^ *s) * 0x01000193; |
| return hash; |
| } |
| |
| /* simplified version of functions from include/linux/hash.h */ |
| #define GOLDEN_RATIO_32 0x61C88647 |
| |
| static inline unsigned int hash_32(unsigned int val) |
| { |
| return 0x61C88647 * val; |
| } |
| |
| static inline unsigned int hash_ptr(const void *ptr) |
| { |
| return hash_32((unsigned int)(unsigned long)ptr); |
| } |
| |
| #endif /* HASH_H */ |
