> diff --git a/arch/riscv/lib/delay.c b/arch/riscv/lib/delay.c
> index 87ff89e88f2c..8c686934e0f6 100644
> --- a/arch/riscv/lib/delay.c
> +++ b/arch/riscv/lib/delay.c
> @@ -81,9 +81,14 @@ EXPORT_SYMBOL(__delay);
> void udelay(unsigned long usecs)
> {
> u64 ucycles = (u64)usecs * lpj_fine * UDELAY_MULT;
> + u64 n;
> + u32 rem;
>
> if (unlikely(usecs > MAX_UDELAY_US)) {
> - __delay((u64)usecs * riscv_timebase / 1000000ULL);
> + n = (u64)usecs * riscv_timebase;
> + rem = do_div(n, 1000000);
> +
> + __delay(n);
> return;
A few comments on the variable usage:
I think you really want a variable of type u64 that contains the usecs
value instead of casting it three times.
n and rem can be easily declared inside the branch.
