[PATCH v2 1/5] gpu: nova-core: use checked arithmetic in FWSEC firmware parsing

[Joel Fernandes]

On 1/28/2026 5:53 AM, Danilo Krummrich wrote:
> On Mon Jan 26, 2026 at 9:23 PM CET, Joel Fernandes wrote:
>> @@ -267,7 +264,12 @@ fn new_fwsec(dev: &Device<device::Bound>, bios: &Vbios, cmd: FwsecCommand) -> Re
>>           let ucode = bios.fwsec_image().ucode(&desc)?;
>>           let mut dma_object = DmaObject::from_data(dev, ucode)?;
>>   
>> -        let hdr_offset = usize::from_safe_cast(desc.imem_load_size() + desc.interface_offset());
>> +        // Compute hdr_offset = imem_load_size + interface_offset.
> 
> I do get the idea behind those comments, but are we sure that's really a good
> idea? How do we ensure to keep them up to date in case we have to change the
> code?
> 
> If we really want this, I'd at least chose a common syntax, e.g.
> 
> 	// CALC: `imem_load_size + interface_offset`
> 
> without the variable name the resulting value is assigned to.
> 
> But I'd rather prefer to just drop those comments.
The idea of adding these comments was to improve readability. However, I 
can drop them in the v3, that's fine with me.

Do you want me to wait for additional comments on this series, or should 
I make the update and repost it?  Thanks,

--
Joel Fernandes