Re: [PATCH V3] pwm: Use div64_ul instead of do_div

From: Uwe Kleine-König
Date: Thu Nov 18 2021 - 04:55:52 EST

On Thu, Nov 18, 2021 at 02:52:54AM +0000, cgel.zte@xxxxxxxxx wrote:
> From: Changcheng Deng <deng.changcheng@xxxxxxxxxx>
> do_div() does a 64-by-32 division. Here the divisor is an unsigned long
> which on some platforms is 64 bit wide. So use div64_ul instead of do_div
> to avoid a possible truncation.
> Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
> Signed-off-by: Changcheng Deng <deng.changcheng@xxxxxxxxxx>

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Best regards

Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | |

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