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Date:   Mon, 2 Mar 2020 15:13:42 -0800
From:   Bjorn Andersson <bjorn.andersson@linaro.org>
To:     Clement Leger <cleger@kalray.eu>
Cc:     Ohad Ben-Cohen <ohad@wizery.com>, Jonathan Corbet <corbet@lwn.net>,
        Shawn Guo <shawnguo@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        linux-remoteproc@vger.kernel.org,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        Fabio Estevam <festevam@gmail.com>,
        NXP Linux Team <linux-imx@nxp.com>,
        Andy Gross <agross@kernel.org>,
        Patrice Chotard <patrice.chotard@st.com>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org,
        linux-arm-msm@vger.kernel.org,
        Arnaud Pouliquen <arnaud.pouliquen@st.com>,
        Loic PALLARDY <loic.pallardy@st.com>, s-anna <s-anna@ti.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>
Subject: Re: [PATCH v5 5/8] remoteproc: Rename rproc_elf_sanity_check for
 elf32
Message-ID: <20200302231342.GE262924@yoga>
References: <20200210162209.23149-1-cleger@kalray.eu>
 <20200302093902.27849-1-cleger@kalray.eu>
 <20200302093902.27849-6-cleger@kalray.eu>
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In-Reply-To: <20200302093902.27849-6-cleger@kalray.eu>
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On Mon 02 Mar 01:38 PST 2020, Clement Leger wrote:

> Since this function will be modified to support both elf32 and elf64,
> rename the existing one to elf32 (which is the only supported format
> at the moment). This will allow not to introduce possible side effect
> when adding elf64 support (ie: all backends will still support only
> elf32 if not requested explicitely using rproc_elf_sanity_check).
> 

Is there a reason for preventing ELF64 binaries be loaded?

Regards,
Bjorn

> Signed-off-by: Clement Leger <cleger@kalray.eu>
> ---
>  drivers/remoteproc/remoteproc_core.c       | 2 +-
>  drivers/remoteproc/remoteproc_elf_loader.c | 6 +++---
>  drivers/remoteproc/remoteproc_internal.h   | 2 +-
>  drivers/remoteproc/st_remoteproc.c         | 2 +-
>  drivers/remoteproc/st_slim_rproc.c         | 2 +-
>  drivers/remoteproc/stm32_rproc.c           | 2 +-
>  6 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 4bfaf4a3c4a3..99f0b796fbc7 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -2055,7 +2055,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
>  		rproc->ops->load = rproc_elf_load_segments;
>  		rproc->ops->parse_fw = rproc_elf_load_rsc_table;
>  		rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table;
> -		rproc->ops->sanity_check = rproc_elf_sanity_check;
> +		rproc->ops->sanity_check = rproc_elf32_sanity_check;
>  		rproc->ops->get_boot_addr = rproc_elf_get_boot_addr;
>  	}
>  
> diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
> index c2a9783cfb9a..5a67745f2638 100644
> --- a/drivers/remoteproc/remoteproc_elf_loader.c
> +++ b/drivers/remoteproc/remoteproc_elf_loader.c
> @@ -25,13 +25,13 @@
>  #include "remoteproc_internal.h"
>  
>  /**
> - * rproc_elf_sanity_check() - Sanity Check ELF firmware image
> + * rproc_elf_sanity_check() - Sanity Check ELF32 firmware image
>   * @rproc: the remote processor handle
>   * @fw: the ELF firmware image
>   *
>   * Make sure this fw image is sane.
>   */
> -int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
> +int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw)
>  {
>  	const char *name = rproc->firmware;
>  	struct device *dev = &rproc->dev;
> @@ -89,7 +89,7 @@ int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
>  
>  	return 0;
>  }
> -EXPORT_SYMBOL(rproc_elf_sanity_check);
> +EXPORT_SYMBOL(rproc_elf32_sanity_check);
>  
>  /**
>   * rproc_elf_get_boot_addr() - Get rproc's boot address.
> diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
> index 0deae5f237b8..28639c588d58 100644
> --- a/drivers/remoteproc/remoteproc_internal.h
> +++ b/drivers/remoteproc/remoteproc_internal.h
> @@ -54,7 +54,7 @@ void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len);
>  phys_addr_t rproc_va_to_pa(void *cpu_addr);
>  int rproc_trigger_recovery(struct rproc *rproc);
>  
> -int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
> +int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw);
>  u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
>  int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
>  int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
> diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
> index a3268d95a50e..a6cbfa452764 100644
> --- a/drivers/remoteproc/st_remoteproc.c
> +++ b/drivers/remoteproc/st_remoteproc.c
> @@ -233,7 +233,7 @@ static const struct rproc_ops st_rproc_ops = {
>  	.parse_fw		= st_rproc_parse_fw,
>  	.load			= rproc_elf_load_segments,
>  	.find_loaded_rsc_table	= rproc_elf_find_loaded_rsc_table,
> -	.sanity_check		= rproc_elf_sanity_check,
> +	.sanity_check		= rproc_elf32_sanity_check,
>  	.get_boot_addr		= rproc_elf_get_boot_addr,
>  };
>  
> diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
> index 09bcb4d8b9e0..3cca8b65a8db 100644
> --- a/drivers/remoteproc/st_slim_rproc.c
> +++ b/drivers/remoteproc/st_slim_rproc.c
> @@ -203,7 +203,7 @@ static const struct rproc_ops slim_rproc_ops = {
>  	.da_to_va       = slim_rproc_da_to_va,
>  	.get_boot_addr	= rproc_elf_get_boot_addr,
>  	.load		= rproc_elf_load_segments,
> -	.sanity_check	= rproc_elf_sanity_check,
> +	.sanity_check	= rproc_elf32_sanity_check,
>  };
>  
>  /**
> diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
> index a18f88044111..9a8b5f5e2572 100644
> --- a/drivers/remoteproc/stm32_rproc.c
> +++ b/drivers/remoteproc/stm32_rproc.c
> @@ -505,7 +505,7 @@ static struct rproc_ops st_rproc_ops = {
>  	.load		= rproc_elf_load_segments,
>  	.parse_fw	= stm32_rproc_parse_fw,
>  	.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
> -	.sanity_check	= rproc_elf_sanity_check,
> +	.sanity_check	= rproc_elf32_sanity_check,
>  	.get_boot_addr	= rproc_elf_get_boot_addr,
>  };
>  
> -- 
> 2.15.0.276.g89ea799
>