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| author |   Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2019-10-08 14:03:26 +0200 |
|---|---|---|
| committer |   Lee Jones <lee.jones@linaro.org> | 2019-10-14 08:57:45 +0100 |
| commit | 407feae1cacaa5d00ebe686532a73ad6de747409 (patch) | |
| tree | b939ed915f984e0ebdac2a46829010ff642006db /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | backlight: pwm_bl: Eliminate a 64/32 division (diff) | |
| download | wireguard-linux-407feae1cacaa5d00ebe686532a73ad6de747409.tar.xz wireguard-linux-407feae1cacaa5d00ebe686532a73ad6de747409.zip | |
backlight: pwm_bl: Drop use of int_pow()
For a fixed small exponent of 3, it is more efficient to simply use
two explicit multiplications rather than calling the int_pow() library
function: Aside from the function call overhead, its implementation
using repeated squaring means it ends up doing four 64x64
multiplications.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions