Re: [PATCH] fixup! pblimage: pblimage: Add LS1028a support

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

Title is wrong (only a single pblimage: ), but shouldn't matter anyway,
as commit should be squashed.

On 10.01.24 10:15, Ahmad Fatoum wrote:
> soc_index is not only used for comparisons, but also as index into the
> socs[] array. However, the array starts with SOC_TYPE_LS1046A and the
> enum with SOC_TYPE_INVALID leading to socs[SOC_TYPE_LS1046A].soc
> == SOC_TYPE_LS1028A and socs[SOC_TYPE_LS1028A] to overflow the array.
> 
> This broke LS1046A boot and LS1028A seems to have only worked by chance,
> because the memory after socs[] happened to be zeroed.
> 
> Fix this by reordering the enum and while at it remove the redundancy in
> having both the index and the soc member be the same value.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  scripts/pblimage.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
> 
> diff --git a/scripts/pblimage.c b/scripts/pblimage.c
> index 8cb473d5bcf2..ef09b0f96084 100644
> --- a/scripts/pblimage.c
> +++ b/scripts/pblimage.c
> @@ -57,30 +57,28 @@ static uint32_t pbi_crc_cmd1;
>  static uint32_t pbi_crc_cmd2;
>  
>  enum soc_type {
> -	SOC_TYPE_INVALID,
> +	SOC_TYPE_INVALID = -1,
>  	SOC_TYPE_LS1046A,
>  	SOC_TYPE_LS1028A,
>  };
>  
>  struct soc_type_entry {
>  	const char *name;
> -	enum soc_type soc;
>  	bool big_endian;
>  };
>  
>  static struct soc_type_entry socs[] = {
> -	{
> +	[SOC_TYPE_LS1046A] = {
>  		.name = "ls1046a",
> -		.soc = SOC_TYPE_LS1046A,
>  		.big_endian = true,
> -	}, {
> +	},
> +	[SOC_TYPE_LS1028A] = {
>  		.name = "ls1028a",
> -		.soc = SOC_TYPE_LS1028A,
>  		.big_endian = false,
>  	},
>  };
>  
> -static enum soc_type soc_type;
> +static enum soc_type soc_type = SOC_TYPE_INVALID;
>  
>  static char *rcwfile;
>  static char *pbifile;
> @@ -413,7 +411,7 @@ int main(int argc, char *argv[])
>  
>  	for (i = 0; i < ARRAY_SIZE(socs); i++) {
>  		if (!strcmp(socs[i].name, cputypestr)) {
> -			soc_type = socs[i].soc;
> +			soc_type = i;
>  			break;
>  		}
>  	}

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