[PATCH master] optee: don't warn about missing OP-TEE header

[Marco Felsch]

Hi Ahmad,

On 24-02-28, Ahmad Fatoum wrote:
> OP-TEE header is checked once in PBL, saved into scratch area after
> verification and then checked again in barebox proper.
> 
> The check in PBL fails silently, but the check in barebox proper that
> should always follow, because the header isn't written to the scratch
> area is printed with error log level.
> 
> Printing an error in either case is wrong though as using a raw OP-TEE
> binary without header is a valid use case and the OP-TEE header may
> also be missing when barebox is chainloaded from a running barebox.
> 
> Therefore reduce the message to debug log level.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
> ---
>  common/optee.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/common/optee.c b/common/optee.c
> index 34667f1f51e0..a8a43554e757 100644
> --- a/common/optee.c
> +++ b/common/optee.c
> @@ -14,8 +14,8 @@ int optee_verify_header(const struct optee_header *hdr)
>  		return -EINVAL;

Shouldn't be the fix:

	if (IS_ERR_OR_NULL(hdr))
		return -EINVAL;

to fail silently.

Regards,
  Marco

>  
>  	if (hdr->magic != OPTEE_MAGIC) {
> -		pr_err("Invalid header magic 0x%08x, expected 0x%08x\n",
> -			   hdr->magic, OPTEE_MAGIC);
> +		pr_debug("Invalid header magic 0x%08x, expected 0x%08x\n",
> +			 hdr->magic, OPTEE_MAGIC);
>  		return -EINVAL;
>  	}
>  
> -- 
> 2.39.2
> 
>