netdev - Re: next-20210302 - build issue with linux-firmware and rtl

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Date:   Wed, 3 Mar 2021 11:26:11 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Valdis Klētnieks <valdis.kletnieks@...edu>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: next-20210302 - build issue with linux-firmware and rtl_nic/
 firmware.

On 03.03.2021 08:39, Valdis Klētnieks wrote:
> On Wed, 03 Mar 2021 07:51:06 +0100, Heiner Kallweit said:
>>> # Firmware loader
>>> CONFIG_EXTRA_FIRMWARE="rtl_nic/rtl8106e-1.fw"
>>> CONFIG_EXTRA_FIRMWARE_DIR="/lib/firmware"
>>>
>> This is wrong, simply remove it.
> 
>>> But then I take a closer look at  drivers/net/ethernet/realtek/r8169_main.c
>>> #define FIRMWARE_8168D_1	"rtl_nic/rtl8168d-1.fw"
>>> #define FIRMWARE_8168D_2	"rtl_nic/rtl8168d-2.fw"
>>> #define FIRMWARE_8168E_1	"rtl_nic/rtl8168e-1.fw"
> 
> Yes, but then how are *these* filenames supposed to work? Is a userspace helper
> supposed to be smart enough to append the .xz, and the EXTRA_FIRMWARE variant
> for embedding out-of-tree firmware has to point at an uncompressed version? 
> 
There is no such thing as compressed firmware files, see here:
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/rtl_nic

Your issue may be distro-specific, so you should check in a support forum of
your respective distro.