[PATCH master] optee: don't warn about missing OP-TEE header
Ahmad Fatoum
a.fatoum at pengutronix.de
Thu Feb 29 03:46:20 PST 2024
On 29.02.24 12:13, Marco Felsch wrote:
> On 24-02-29, Ahmad Fatoum wrote:
>> On 29.02.24 10:33, Marco Felsch wrote:
>>> On 24-02-29, Ahmad Fatoum wrote:
>>>> hdr is a valid pointer for me, but it doesn't point at a header, which causes
>>>> me to get an error message.
>>>
>>> Yes, I have noticed the code path for non-pbl part as well now :/
>>>
>>> I was thinking about:
>>>
>>> if (hdr->magic == 0)
>>> return -EINVAL;
>>>
>>> but this is not far awways from you change. Therefore:
>>
>> This would assume that DRAM is zero-initialized after POR, which isn't given.
>
> For i.MX8M and i.MX9 it should be the case since we call
> imx8m*_init_scratch_space which in turn does set the scratch space to
> zero. Anyway as said, I'm fine with lowering it to pr_debug() :)
Ah, I see. First time I ran into this, I was chainloading a new barebox from
an old barebox, so it read gibberish.
Cheers,
Ahmad
>
> Regards,
> Marco
>
>>> Reviewed-by: Marco Felsch <m.felsch at pengutronix.de>
>>>
>>> PS: Could you please fix the silent check as well by using IS_ERR_OR_NULL()?
>>
>> I will send a separate patch for that, so this can be picked up as-is.
>>
>> Cheers,
>> Ahmad
>>
>>>
>>> Regards,
>>> Marco
>>>
>>>>
>>>> Thanks,
>>>> Ahmad
>>>>
>>>>>
>>>>> 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
>>>>>>
>>>>>>
>>>>>
>>>>
>>>> --
>>>> Pengutronix e.K. | |
>>>> Steuerwalder Str. 21 | http://www.pengutronix.de/ |
>>>> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
>>>> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
>>>>
>>>>
>>>
>>
>> --
>> Pengutronix e.K. | |
>> Steuerwalder Str. 21 | http://www.pengutronix.de/ |
>> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
>> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
>>
>>
>
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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