Messages in this thread | | | Date | Tue, 14 Nov 2023 20:58:58 +0100 | Subject | Re: ath10k_pci logs errors about missing pre-cal and cal firmware on a laptop | From | Paul Menzel <> |
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[To: +debian-kernel@lists.debian.org]
Dear Jeff, dear Debian Linux kernel team,
Am 14.11.23 um 19:19 schrieb Jeff Johnson: > On 11/14/2023 9:32 AM, Jeff Johnson wrote: >> On 11/12/2023 4:13 AM, Paul Menzel wrote:
>>> On the Dell XPS 13 9360 with Debian sid/unstable, Linux 6.5.10 logs the >>> error below: >>> >>> $ sudo dmesg | grep -e "DMI:" -e "Linux version" -e microcode >>> [ 0.000000] microcode: updated early: 0xf0 -> 0xf4, date = 2023-02-22 >>> [ 0.000000] Linux version 6.5.0-4-amd64 (debian-kernel@lists.debian.org) (gcc-13 (Debian 13.2.0-6) 13.2.0, GNU ld (GNU Binutils for Debian) 2.41) #1 SMP PREEMPT_DYNAMIC Debian 6.5.10-1 (2023-11-03) >>> [ 0.000000] DMI: Dell Inc. XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022 >>> [ 0.580689] microcode: Microcode Update Driver: v2.2. >>> >>> $ sudo dmesg --level alert,crit,err >>> [ 0.053566] x86/cpu: SGX disabled by BIOS. >>> [ 1.942183] psmouse serio1: synaptics: Unable to query device: -5 >>> [ 14.401112] ath10k_pci 0000:3a:00.0: firmware: failed to load ath10k/pre-cal-pci-0000:3a:00.0.bin (-2) >>> [ 14.401143] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware >>> [ 14.401185] ath10k_pci 0000:3a:00.0: firmware: failed to load ath10k/pre-cal-pci-0000:3a:00.0.bin (-2) >>> [ 14.401233] ath10k_pci 0000:3a:00.0: firmware: failed to load ath10k/cal-pci-0000:3a:00.0.bin (-2) >>> [ 14.401273] ath10k_pci 0000:3a:00.0: firmware: failed to load ath10k/cal-pci-0000:3a:00.0.bin (-2) >>> >>> As it’s logged with error level, I’d like to address the ath10k_pci >>> errors, but I am unable to find the firmware in the Linux firmware >>> archive [1]. >>> >>> What can I do about this?
>>> [1]: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ >> >> Adding the ath10k list so this isn't lost in the noise > > The calibration files are optional and you should not see any warnings > if they are not present. > > Note ath10k explicitly calls firmware_request_nowarn() when it loads the > files since it doesn't want any warnings from the firmware loader if the > files aren't present. > <https://elixir.bootlin.com/linux/v6.5.10/source/drivers/net/wireless/ath/ath10k/core.c#L929> > > And ath10k itself explicitly doesn't warn: > <https://elixir.bootlin.com/linux/v6.5.10/source/drivers/net/wireless/ath/ath10k/core.c#L1259> > > So I'm confused where these warnings originate. > > Based upon the message: > [ 14.401143] firmware_class: See https://wiki.debian.org/Firmware > for information about missing firmware > > it seems you are not running a stock kernel. So perhaps Debian has > modified the firmware loading such that it ignores the FW_OPT_NO_WARN > flag and warns even when told not to do so? This does not appear to be > an upstream kernel issue.
Thank you very much for the analysis. It seems to be indeed a Debian specific patch [1].
Dear Debian Linux kernel team, is my observation about the error log a result of the patch and intended?
Kind regards,
Paul
[1]: debian/patches/debian/firmware_class-refer-to-debian-wiki-firmware-page.patch
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