Bug 2050825

Summary:	linux-firmware: Size reduction by eliding versions not used by the kernel
Product:	[Fedora] Fedora	Reporter:	Florian Weimer <fweimer>
Component:	linux-firmware	Assignee:	David Woodhouse <dwmw2>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	dwmw2, jforbes, jwboyer, kernel-maint, laura, pbrobinson
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	linux-firmware-20220610-135.fc36 linux-firmware-20220610-135.fc35	Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-06-16 01:21:04 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Florian Weimer 2022-02-04 17:46:15 UTC

I noticed this during boot (5.15.17-200.fc35.x86_64):

[    2.986721] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-cc-a0-66.ucode failed with error -2
[    2.986746] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-cc-a0-65.ucode failed with error -2
[    2.986764] iwlwifi 0000:03:00.0: Direct firmware load for iwlwifi-cc-a0-64.ucode failed with error -2
[    3.018280] iwlwifi 0000:03:00.0: loaded firmware version 63.c04f3485.0 cc-a0-63.ucode op_mode iwlmvm

However, iwlax2xx-firmware-20211216-127.fc35.noarch contains:

448K /lib/firmware/iwlwifi-cc-a0-67.ucode.xz
440K /lib/firmware/iwlwifi-cc-a0-63.ucode.xz
436K /lib/firmware/iwlwifi-cc-a0-62.ucode.xz
432K /lib/firmware/iwlwifi-cc-a0-59.ucode.xz
420K /lib/firmware/iwlwifi-cc-a0-55.ucode.xz
420K /lib/firmware/iwlwifi-cc-a0-53.ucode.xz
384K /lib/firmware/iwlwifi-cc-a0-50.ucode.xz
380K /lib/firmware/iwlwifi-cc-a0-48.ucode.xz
376K /lib/firmware/iwlwifi-cc-a0-46.ucode.xz

Looking at the current kernel sources, it seems that drivers/net/wireless/intel/iwlwifi/cfg/22000.c will never load any of the files having versions prior to -63.

This pattern seems to be quite common across the iwlwifi drivers, although for some devices, the selection logic is much more complicated, with card-specific maximum and minimum versions.

Comment 1 Peter Robinson 2022-06-14 08:54:41 UTC

So I went through and removed all the ones upstream not supported by any stable kernels, about 27mb worth, upstream so this will be resolved in the next release. There will be possibly more to do but I'm not going to track it here.

Comment 2 Florian Weimer 2022-06-14 08:56:45 UTC

Much appreciated, thanks!

Comment 3 Fedora Update System 2022-06-14 09:02:48 UTC

FEDORA-2022-ee69e90000 has been submitted as an update to Fedora 35. https://bodhi.fedoraproject.org/updates/FEDORA-2022-ee69e90000

Comment 4 Fedora Update System 2022-06-14 09:02:51 UTC

FEDORA-2022-0566172ae3 has been submitted as an update to Fedora 36. https://bodhi.fedoraproject.org/updates/FEDORA-2022-0566172ae3

Comment 5 Fedora Update System 2022-06-15 01:11:21 UTC

FEDORA-2022-0566172ae3 has been pushed to the Fedora 36 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2022-0566172ae3`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2022-0566172ae3

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2022-06-15 01:15:35 UTC

FEDORA-2022-ee69e90000 has been pushed to the Fedora 35 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2022-ee69e90000`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2022-ee69e90000

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2022-06-16 01:21:04 UTC

FEDORA-2022-0566172ae3 has been pushed to the Fedora 36 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2022-06-30 02:17:17 UTC

FEDORA-2022-ee69e90000 has been pushed to the Fedora 35 stable repository.
If problem still persists, please make note of it in this bug report.