Re: [RFC 0/1] Loading optional firmware

[Luis R. Rodriguez]

On Fri, Mar 9, 2018 at 2:12 PM, Andres Rodriguez <andresx7@xxxxxxxxx> wrote:
> Hi Everyone,
>
> Wanted to inquire your opinions about the following matter.
>
> We are experiencing some end user confusion regarding the following messages
> being printed to dmesg:
>
> [    0.571324] amdgpu 0000:01:00.0: Direct firmware load for amdgpu/polaris10_pfp_2.bin failed with error -2
> [    0.571338] amdgpu 0000:01:00.0: Direct firmware load for amdgpu/polaris10_me_2.bin failed with error -2
> [    0.571348] amdgpu 0000:01:00.0: Direct firmware load for amdgpu/polaris10_ce_2.bin failed with error -2
> [    0.571366] amdgpu 0000:01:00.0: Direct firmware load for amdgpu/polaris10_mec_2.bin failed with error -2
> [    0.571404] amdgpu 0000:01:00.0: Direct firmware load for amdgpu/polaris10_mec2_2.bin failed with error -2
>
> These firmware blobs are optional. If they aren't available, the graphics card
> can still function normally. But having these messages causes the user to think
> their current problems are related to missing firmware.
>
> It would be great if we could have a mechanism that enabled us to load a
> firmware blob without any dmesg spew in case of file not found errors.Currently
> request_firmware_direct() implements this functionality, but as a drawback it
> forfeits the usermodehelper fallback path.

Yeah, this is a common enough reported type of feature request that I
think it makes sense to add now. I'll reply to your patch with a bit
more details.

 Luis