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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	barebox@lists.infradead.org
Cc: "Jürgen Borleis" <jbe@pengutronix.de>
Subject: Re: [PATCH] ARM: i.MX: Make sure *_get_boot_source always assignes *src
Date: Fri, 10 Jun 2022 19:34:49 +0200	[thread overview]
Message-ID: <0b29c92c-b895-c1a9-6586-9605386f9f45@pengutronix.de> (raw)
In-Reply-To: <20220610165057.86722-1-u.kleine-koenig@pengutronix.de>

On 10.06.22 18:50, Uwe Kleine-König wrote:
> Callers of *_get_boot_source (e.g. start_atf() of
> nxp-imx8mm-evk or protonic-imx8m) expect src to hold the bootsource
> after return. So assign a value also for the "unknown" case.

Did you check existing in-tree users to make sure none assigned
a different fallback value and assumed it won't be overwritten
if no bootsource could be found?

> 
> Fixes: ea55770308c0 ("ARM: i.MX: Add i.MX7 base architecture support")
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> ---
>  arch/arm/mach-imx/boot.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/mach-imx/boot.c b/arch/arm/mach-imx/boot.c
> index 63afdf1ef4ed..1b0bccb7fed8 100644
> --- a/arch/arm/mach-imx/boot.c
> +++ b/arch/arm/mach-imx/boot.c
> @@ -285,6 +285,8 @@ void imx53_get_boot_source(enum bootsource *src, int *instance)
>  	default:
>  		if (imx53_bootsource_nand(cfg1))
>  			*src = BOOTSOURCE_NAND;
> +		else
> +			*src = BOOTSOURCE_UNKNOWN;
>  		break;
>  	}
>  
> @@ -464,6 +466,8 @@ void imx6_get_boot_source(enum bootsource *src, int *instance)
>  	default:
>  		if (imx53_bootsource_nand(bootmode))
>  			*src = BOOTSOURCE_NAND;
> +		else
> +			*src = BOOTSOURCE_UNKNOWN;
>  		break;
>  	}
>  }
> @@ -526,6 +530,7 @@ static void __imx7_get_boot_source(enum bootsource *src, int *instance,
>  		*src = BOOTSOURCE_SERIAL;
>  		break;
>  	default:
> +		*src = BOOTSOURCE_UNKNOWN;
>  		break;
>  	}
>  }
> @@ -629,6 +634,8 @@ void vf610_get_boot_source(enum bootsource *src, int *instance)
>  	default:
>  		if (imx53_bootsource_nand(sbmr1))
>  			*src = BOOTSOURCE_NAND;
> +		else
> +			*src = BOOTSOURCE_UNKNOWN;
>  		break;
>  	}
>  }
> 
> base-commit: 345ef59aa0ea1a931629187449f63876501752cd


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  reply	other threads:[~2022-06-10 17:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-10 16:50 Uwe Kleine-König
2022-06-10 17:34 ` Ahmad Fatoum [this message]
2022-06-10 20:41   ` Uwe Kleine-König
2022-06-14  8:50 ` Sascha Hauer

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