linux-kernel - Re: pwm-rz-mtu3.c:undefined reference to `clk_rate_exclusive

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Date:   Tue, 25 Jul 2023 18:21:19 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Biju Das <biju.das.jz@...renesas.com>
Cc:     kernel test robot <lkp@...el.com>,
        "oe-kbuild-all@...ts.linux.dev" <oe-kbuild-all@...ts.linux.dev>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Subject: Re: pwm-rz-mtu3.c:undefined reference to `clk_rate_exclusive_put'

On Tue, Jul 25, 2023 at 01:51:38PM +0000, Biju Das wrote:
> Hi kernel test robot,
> 
> I have fixed the original issue by adding dependency to COMMON_CLK.
> 
> But I hit below error which related to m68k compiler/arch specific.
> Can you please fix this issue?
> 
> /home/user/0day/gcc-12.3.0-nolibc/m68k-linux/bin/m68k-linux-ld: section .rodata VMA [00002000,009a758f] overlaps section .text VMA [00000400,012a08ff]
> make[2]: *** [../scripts/Makefile.vmlinux:35: vmlinux] Error 1
> make[2]: Target '__default' not remade because of errors.
> make[1]: *** [/builds/0/rzg2l-linux/Makefile:1250: vmlinux] Error 2
> make[1]: Target '__all' not remade because of errors.
> make[1]: Leaving directory '/builds/0/rzg2l-linux/build_dir'
> make: *** [Makefile:226: __sub-make] Error 2
> make: Target '__all' not remade because of errors.
> 
> Note:
> You can reproduce this issue by
> 
> diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
> index 6210babb0741..eeecf249f372 100644
> --- a/drivers/pwm/Kconfig
> +++ b/drivers/pwm/Kconfig
> @@ -506,6 +506,7 @@ config PWM_ROCKCHIP
>  config PWM_RZ_MTU3
>         tristate "Renesas RZ/G2L MTU3a PWM Timer support"
>         depends on RZ_MTU3 || COMPILE_TEST
> +       depends on COMMON_CLK

It probably doesn't change anything about the build issue, but I think a
slightly more correct dependency would be:

	depends on HAVE_CLK

Thierry

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