linux-kernel - Re: [PATCH v2 1/2] pwm: add microchip soft ip corePWM driver

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Message-ID: <20220614121312.hfotzvx76i4fda6e@pengutronix.de>
Date:   Tue, 14 Jun 2022 14:13:12 +0200
From:   Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
To:     Conor.Dooley@...rochip.com
Cc:     lkp@...el.com, thierry.reding@...il.com, lee.jones@...aro.org,
        kbuild-all@...ts.01.org, Daire.McNamara@...rochip.com,
        linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 1/2] pwm: add microchip soft ip corePWM driver

On Tue, Jun 14, 2022 at 10:34:00AM +0000, Conor.Dooley@...rochip.com wrote:
> >     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_enable.isra.0':
> >>> pwm-microchip-core.c:(.text+0x380): undefined reference to `__udivdi3'
> >     xtensa-linux-ld: drivers/pwm/pwm-microchip-core.o: in function `mchp_core_pwm_apply':
> >     pwm-microchip-core.c:(.text+0x586): undefined reference to `__udivdi3'
> 
> I assume this is me using functions that are only defined for 64 bit...

This is usually a division with variables > int.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

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