diff options
Diffstat (limited to 'kernel/futex/futex.h')
| -rw-r--r-- | kernel/futex/futex.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/futex/futex.h b/kernel/futex/futex.h index 68fc052dc09b..a3f1fceafcbe 100644 --- a/kernel/futex/futex.h +++ b/kernel/futex/futex.h @@ -85,6 +85,16 @@ static inline bool futex_flags_valid(unsigned int flags) return true; } +static inline bool futex_validate_input(unsigned int flags, u64 val) +{ + int bits = 8 * futex_size(flags); + + if (bits < 64 && (val >> bits)) + return false; + + return true; +} + #ifdef CONFIG_FAIL_FUTEX extern bool should_fail_futex(bool fshared); #else |