linux-kernel - Re: [PATCH] clocksource/drivers/exynos_mct: Fix section mismatch from the module conversion

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Message-ID: <aHaOfZk77xDf81cP@google.com>
Date: Tue, 15 Jul 2025 10:23:09 -0700
From: William McVicker <willmcvicker@...gle.com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: tglx@...utronix.de, linux-kernel@...r.kernel.org,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	"moderated list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES" <linux-arm-kernel@...ts.infradead.org>,
	"open list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES" <linux-samsung-soc@...r.kernel.org>
Subject: Re: [PATCH] clocksource/drivers/exynos_mct: Fix section mismatch
 from the module conversion

On 07/15/2025, Daniel Lezcano wrote:
> The function register_current_timer_delay() when compiling on ARM32
> fails with a section mismatch. That is resulting from the module
> conversion where the function exynos4_clocksource_init() is called
> from mct_init_dt(). This one had its __init annotation removed to for
> the module loading.
> 
> Fix this by adding the __init_or_module annotation for the functions:
>  - mct_init_dt()
>  - mct_init_spi()
>  - mct_init_dt()
> 
> Compiled on ARM32 + MODULES=no, ARM64 + MODULES=yes, ARM64 +
> MODULES=no
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

Reviewed-by: Will McVicker <willmcvicker@...gle.com>

> ---
>  drivers/clocksource/exynos_mct.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
> index 5075ebe052a7..80d263ee046d 100644
> --- a/drivers/clocksource/exynos_mct.c
> +++ b/drivers/clocksource/exynos_mct.c
> @@ -657,7 +657,7 @@ static int exynos4_timer_interrupts(struct device_node *np,
>  	return err;
>  }
>  
> -static int mct_init_dt(struct device_node *np, unsigned int int_type)
> +static __init_or_module int mct_init_dt(struct device_node *np, unsigned int int_type)
>  {
>  	bool frc_shared = of_property_read_bool(np, "samsung,frc-shared");
>  	u32 local_idx[MCT_NR_LOCAL] = {0};
> @@ -705,12 +705,12 @@ static int mct_init_dt(struct device_node *np, unsigned int int_type)
>  	return exynos4_clockevent_init();
>  }
>  
> -static int mct_init_spi(struct device_node *np)
> +static __init_or_module int mct_init_spi(struct device_node *np)
>  {
>  	return mct_init_dt(np, MCT_INT_SPI);
>  }
>  
> -static int mct_init_ppi(struct device_node *np)
> +static __init_or_module int mct_init_ppi(struct device_node *np)
>  {
>  	return mct_init_dt(np, MCT_INT_PPI);
>  }
> -- 
> 2.43.0
> 

Thanks Daniel for catching this! Sorry I missed it.

Regards,
Will