Messages in this thread | | | Date | Mon, 14 Oct 2019 08:27:34 +0100 | From | Lee Jones <> | Subject | Re: [PATCH v2 3/4] backlight: pwm_bl: drop use of int_pow() |
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On Tue, 08 Oct 2019, Rasmus Villemoes wrote:
> 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. > > Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> > Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> > --- > drivers/video/backlight/pwm_bl.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
Applied, thanks.
-- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
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