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Bug 732852

Summary: sys-kernel/gentoo-sources: always print loaded firmware name patch
Product: Gentoo Linux Reporter: Georgy Yakovlev <gyakovlev>
Component: Current packagesAssignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Status: RESOLVED FIXED    
Severity: normal CC: flaviocamilo, m_gentoobug, sam
Priority: Normal Keywords: InVCS, PATCH
Version: unspecified   
Hardware: All   
OS: Linux   
See Also: https://bugzilla.kernel.org/show_bug.cgi?id=217734
Whiteboard: 5.13.13, 5.10.61
Package list:
Runtime testing required: ---
Attachments: 0001-always-print-firmware-file-name.patch

Description Georgy Yakovlev archtester gentoo-dev 2020-07-16 07:20:49 UTC
Created attachment 649432 [details, diff]
0001-always-print-firmware-file-name.patch

Very simple patch I've been running for more than a year. Does not require a rebase, and helps a lot with figuring out which exactly FW file is needed.

By default linux does not print the filename. With this patch it does.


here's an example dmesg
...

[    2.739040] Loading firmware: amdgpu/polaris10_mc.bin
[    2.740303] Loading firmware: amdgpu/polaris10_pfp_2.bin
[    2.740306] Loading firmware: amdgpu/polaris10_me_2.bin
[    2.740308] Loading firmware: amdgpu/polaris10_ce_2.bin
[    2.740311] Loading firmware: amdgpu/polaris10_rlc.bin
[    2.740321] Loading firmware: amdgpu/polaris10_mec_2.bin
[    2.740323] Loading firmware: amdgpu/polaris10_mec2_2.bin
[    2.742261] Loading firmware: amdgpu/polaris10_sdma.bin
[    2.742264] Loading firmware: amdgpu/polaris10_sdma1.bin
[    2.742400] Loading firmware: amdgpu/polaris10_uvd.bin
[    2.745343] Loading firmware: amdgpu/polaris10_vce.bin
[   15.720945] Loading firmware: cxgb4/t5fw.bin
[   16.421347] Loading firmware: cxgb4/t5-config.txt


very easy to see what kernel tries to load.
Comment 1 Thomas Deutschmann (RETIRED) gentoo-dev 2020-08-11 16:25:51 UTC
See also: https://lkml.org/lkml/2019/11/17/215
Comment 2 Martin 2021-02-09 17:27:47 UTC
Thanks for an excellent patch!

Can that be added as a useflag option for the Gentoo kernel?


Aside: Whatever became of the lkml patch?
Comment 3 Arisu Tachibana Gentoo Infrastructure gentoo-dev 2021-03-29 08:06:08 UTC
ping ? any news ?
Comment 4 Arisu Tachibana Gentoo Infrastructure gentoo-dev 2021-03-29 08:07:29 UTC
Linking to Greg kh question "why don't just use ftrace ?"
Comment 5 Georgy Yakovlev archtester gentoo-dev 2021-06-03 06:28:05 UTC
meanwhile patch still applies and works =)

I haven't got time to make something upstream-able, but still intend to.
Comment 6 Arisu Tachibana Gentoo Infrastructure gentoo-dev 2021-06-03 10:18:13 UTC
we will wait for this patch to reach upstream.
Comment 7 Patrick Op de Beeck 2021-06-16 21:10:21 UTC
Great idea ! Must be included in kernel source !
Comment 8 Mike Pagano gentoo-dev 2021-08-26 15:55:15 UTC
This is now in the following gentoo-sources:

>=5.13.13
>=5.10.61
>=5.4.143
>=4.19.205
>=4.14.245
>=4.9.281
>=4.4.282