linux-kernel - Re: [PATCH] m68k: tweak coldfire/device.c for COMPILE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <cbdbb347-b510-131f-e961-09f1545fb891@linux-m68k.org>
Date:   Sat, 5 Mar 2022 00:45:43 +1000
From:   Greg Ungerer <gerg@...ux-m68k.org>
To:     Randy Dunlap <rdunlap@...radead.org>, linux-kernel@...r.kernel.org
Cc:     patches@...ts.linux.dev, kernel test robot <lkp@...el.com>,
        Angelo Dureghello <angelo@...am.it>,
        Greg Ungerer <gerg@...ux-m68k.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-m68k@...ts.linux-m68k.org, uclinux-dev@...inux.org
Subject: Re: [PATCH] m68k: tweak coldfire/device.c for COMPILE_TEST

Hi Randy,

On 4/3/22 13:35, Randy Dunlap wrote:
> When CONFIG_MCF_EDMA is set (due to COMPILE_TEST, not due to
> CONFIG_M5441x), coldfire/device.c has compile errors due to
> missing MCFEDMA_* symbols. In the .config file that was provided,
> CONFIG_M5206=y, not CONFIG_M5441x, so <asm/m5441xsim.h> is not
> included in coldfire/device.c.
> 
> Only build the MCF_EDMA code in coldfire/device.c if both MCF_EDMA
> and M5441x are enabled.
> 
> Fixes these build errors:
> 
> ../arch/m68k/coldfire/device.c:512:35: error: 'MCFEDMA_BASE' undeclared here (not in a function); did you mean 'MCFDMA_BASE1'?
>    512 |                 .start          = MCFEDMA_BASE,
> ../arch/m68k/coldfire/device.c:513:50: error: 'MCFEDMA_SIZE' undeclared here (not in a function)
>    513 |                 .end            = MCFEDMA_BASE + MCFEDMA_SIZE - 1,
> ../arch/m68k/coldfire/device.c:517:35: error: 'MCFEDMA_IRQ_INTR0' undeclared here (not in a function)
>    517 |                 .start          = MCFEDMA_IRQ_INTR0,
> ../arch/m68k/coldfire/device.c:523:35: error: 'MCFEDMA_IRQ_INTR16' undeclared here (not in a function)
>    523 |                 .start          = MCFEDMA_IRQ_INTR16,
> ../arch/m68k/coldfire/device.c:529:35: error: 'MCFEDMA_IRQ_INTR56' undeclared here (not in a function)
>    529 |                 .start          = MCFEDMA_IRQ_INTR56,
> ../arch/m68k/coldfire/device.c:535:35: error: 'MCFEDMA_IRQ_ERR' undeclared here (not in a function)
>    535 |                 .start          = MCFEDMA_IRQ_ERR,
> 
> Fixes: d7e9d01ac292 ("m68k: add ColdFire mcf5441x eDMA platform support")
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Link: lore.kernel.org/r/202203030252.P752DK46-lkp@...el.com
> Cc: Angelo Dureghello <angelo@...am.it>
> Cc: Greg Ungerer <gerg@...nel.org>
> Cc: Greg Ungerer <gerg@...ux-m68k.org>
> Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
> Cc: linux-m68k@...ts.linux-m68k.org
> Cc: uclinux-dev@...inux.org
> ---
>   arch/m68k/coldfire/device.c |    6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
> 
> --- linux-next-20220303.orig/arch/m68k/coldfire/device.c
> +++ linux-next-20220303/arch/m68k/coldfire/device.c
> @@ -480,7 +480,7 @@ static struct platform_device mcf_i2c5 =
>   #endif /* MCFI2C_BASE5 */
>   #endif /* IS_ENABLED(CONFIG_I2C_IMX) */
>   
> -#if IS_ENABLED(CONFIG_MCF_EDMA)
> +#if IS_ENABLED(CONFIG_MCF_EDMA) && IS_ENABLED(CONFIG_M5441x)

I really try to avoid making these ColdFire SoC specific. Freescale has
a habit of using the same hardware blocks across a number of parts.
The model so far has been to let the Kconfig select these out as required
(and so not having to conditionally duplicate that here).

I would prefer it to be conditional on !COMPILE_TEST if that is what
is ultimately causing the problem.

Regards
Greg



>   
>   static const struct dma_slave_map mcf_edma_map[] = {
>   	{ "dreq0", "rx-tx", MCF_EDMA_FILTER_PARAM(0) },
> @@ -552,7 +552,7 @@ static struct platform_device mcf_edma =
>   		.platform_data = &mcf_edma_data,
>   	}
>   };
> -#endif /* IS_ENABLED(CONFIG_MCF_EDMA) */
> +#endif /* IS_ENABLED(CONFIG_MCF_EDMA) && IS_ENABLED(CONFIG_M5441x) */
>   
>   #ifdef MCFSDHC_BASE
>   static struct mcf_esdhc_platform_data mcf_esdhc_data = {
> @@ -651,7 +651,7 @@ static struct platform_device *mcf_devic
>   	&mcf_i2c5,
>   #endif
>   #endif
> -#if IS_ENABLED(CONFIG_MCF_EDMA)
> +#if IS_ENABLED(CONFIG_MCF_EDMA) && IS_ENABLED(CONFIG_M5441x)
>   	&mcf_edma,
>   #endif
>   #ifdef MCFSDHC_BASE