| #ifndef __BACKPORT_BITOPS_H |
| #define __BACKPORT_BITOPS_H |
| #include_next <linux/bitops.h> |
| #include <linux/version.h> |
| #include <generated/utsrelease.h> |
| |
| #ifndef GENMASK |
| |
| /* |
| * Create a contiguous bitmask starting at bit position @l and ending at |
| * position @h. For example |
| * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000. |
| */ |
| #define GENMASK(h, l) (((U32_C(1) << ((h) - (l) + 1)) - 1) << (l)) |
| #define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l)) |
| |
| #endif |
| |
| #endif /* __BACKPORT_BITOPS_H */ |
