diff options
| -rw-r--r-- | qdf/inc/qdf_util.h | 14 | ||||
| -rw-r--r-- | qdf/linux/src/i_qdf_util.h | 16 |
2 files changed, 30 insertions, 0 deletions
diff --git a/qdf/inc/qdf_util.h b/qdf/inc/qdf_util.h index cc7ae313481b..e6b4a708598a 100644 --- a/qdf/inc/qdf_util.h +++ b/qdf/inc/qdf_util.h @@ -467,4 +467,18 @@ uint32_t qdf_get_upper_32_bits(qdf_dma_addr_t addr) return __qdf_get_upper_32_bits(addr); } +/** + * qdf_rounddown_pow_of_two() - Round down to nearest power of two + * @n: number to be tested + * + * Test if the input number is power of two, and return the nearest power of two + * + * Return: number rounded down to the nearest power of two + */ +static inline +unsigned long qdf_rounddown_pow_of_two(unsigned long n) +{ + return __qdf_rounddown_pow_of_two(n); +} + #endif /*_QDF_UTIL_H*/ diff --git a/qdf/linux/src/i_qdf_util.h b/qdf/linux/src/i_qdf_util.h index c66193e39286..fbd2e8433f93 100644 --- a/qdf/linux/src/i_qdf_util.h +++ b/qdf/linux/src/i_qdf_util.h @@ -320,5 +320,21 @@ uint32_t __qdf_get_upper_32_bits(__qdf_dma_addr_t addr) return upper_32_bits(addr); } +/** + * __qdf_rounddown_pow_of_two() - Round down to nearest power of two + * @n: number to be tested + * + * Test if the input number is power of two, and return the nearest power of two + * + * Return: number rounded down to the nearest power of two + */ +static inline +unsigned long __qdf_rounddown_pow_of_two(unsigned long n) +{ + if (is_power_of_2(n)) + return n; /* already a power of 2 */ + + return __rounddown_pow_of_two(n); +} #endif /*_I_QDF_UTIL_H*/ |