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| author | Jakub Kicinski <kuba@kernel.org> | 2024-06-10 19:52:50 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-06-10 19:52:50 -0700 |
| commit | bb678f01804ccaa861b012b2b9426d69673d8a84 (patch) | |
| tree | 5d763fdb470bbab021a86e6d0b4c5735ca5ad123 /include/linux/math64.h | |
| parent | 2ebb87f45b3c6adc97b29291102ecb97274f913f (diff) | |
| parent | dee55767dc8ca3fc6127a792e2a8b69c5e03fdd2 (diff) | |
Merge branch 'intel-wired-lan-driver-updates-2024-06-03'
Jacob Keller says:
====================
Intel Wired LAN Driver Updates 2024-06-03
This series includes miscellaneous improvements for the ice as well as a
cleanup to the Makefiles for all Intel net drivers.
Andy fixes all of the Intel net driver Makefiles to use the documented
'*-y' syntax for specifying object files to link into kernel driver
modules, rather than the '*-objs' syntax which works but is documented as
reserved for user-space host programs.
Jacob has a cleanup to refactor rounding logic in the ice driver into a
common roundup_u64 helper function.
Michal Schmidt replaces irq_set_affinity_hint() to use
irq_update_affinity_hint() which behaves better with user-applied affinity
settings.
v2: https://lore.kernel.org/r/20240605-next-2024-06-03-intel-next-batch-v2-0-39c23963fa78@intel.com
v1: https://lore.kernel.org/r/20240603-next-2024-06-03-intel-next-batch-v1-0-e0523b28f325@intel.com
====================
Link: https://lore.kernel.org/r/20240607-next-2024-06-03-intel-next-batch-v3-0-d1470cee3347@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/math64.h')
| -rw-r--r-- | include/linux/math64.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/math64.h b/include/linux/math64.h index d34def7f9a8c..6aaccc1626ab 100644 --- a/include/linux/math64.h +++ b/include/linux/math64.h @@ -298,6 +298,19 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div); ({ u64 _tmp = (d); div64_u64((ll) + _tmp - 1, _tmp); }) /** + * DIV_U64_ROUND_UP - unsigned 64bit divide with 32bit divisor rounded up + * @ll: unsigned 64bit dividend + * @d: unsigned 32bit divisor + * + * Divide unsigned 64bit dividend by unsigned 32bit divisor + * and round up. + * + * Return: dividend / divisor rounded up + */ +#define DIV_U64_ROUND_UP(ll, d) \ + ({ u32 _tmp = (d); div_u64((ll) + _tmp - 1, _tmp); }) + +/** * DIV64_U64_ROUND_CLOSEST - unsigned 64bit divide with 64bit divisor rounded to nearest integer * @dividend: unsigned 64bit dividend * @divisor: unsigned 64bit divisor @@ -342,4 +355,19 @@ u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div); div_s64((__x - (__d / 2)), __d); \ } \ ) + +/** + * roundup_u64 - Round up a 64bit value to the next specified 32bit multiple + * @x: the value to up + * @y: 32bit multiple to round up to + * + * Rounds @x to the next multiple of @y. For 32bit @x values, see roundup and + * the faster round_up() for powers of 2. + * + * Return: rounded up value. + */ +static inline u64 roundup_u64(u64 x, u32 y) +{ + return DIV_U64_ROUND_UP(x, y) * y; +} #endif /* _LINUX_MATH64_H */ |
