rpi*-kernel: update to 5.10.92.

[JamiKettunen]

This enables support for the Raspberry Pi Zero 2 W (adds /boot/bcm2710-rpi-zero-2.dtb) as well as brings the kernels up to the latest stable merge commit on raspberrypi/linux @ rpi-5.10.y.

Testing the changes

• I tested the changes in this PR: NO (I'd like help here, I don't own any rpis)

[ci skip] since everything already built successfully

[JamiKettunen]

There's 2 ways we could fix rpi2-kernel build:

1. We disable CONFIG_GCC_PLUGINS
2. We add gmp-devel libmpc-devel to hostmakedepends, but it doesn't look like any of the other rpi*-kernel packages do this?

Which one do I go for?

I didn't happen to catch this one locally since I just verified /boot/bcm2710-rpi-zero-2.dtb got added to the rpi3-kernel package.

[ahesford]

What is the perceived benefit of GCC plugins in the kernel?

[JamiKettunen]

What is the perceived benefit of GCC plugins in the kernel?

No idea, I'm certainly in favor of disabling them as they don't appear to be enabled in basically any of the other kernels either.

[Duncaen]

This should be one commit per template, its policy and makes reverts simpler.

Problem with GCC plugins is that they would also be required for building dkms modules and depend on the specific gcc version when building external modules with them iirc.

[JamiKettunen]

This should be one commit per template, its policy and makes reverts simpler.

Will fix!

[JamiKettunen]

Updated rpi3-kernel to mention the Zero 2 in short_desc

[marmeladema]

@ahesford the GCC plugins are required to enable certain hardening options: https://www.kernel.org/doc/html/latest/kbuild/gcc-plugins.html

[classabbyamp]

Tested with:

• 1 B+
• zero
• 2 B
• 3 B
• zero 2 W

on glibc and musl. all boot but did not do extensive testing. Unfortunately I do not have any rpi 4s so I can't test that one.

on the zero 2 W, there was a message that popped up in dmesg during boot, but it did not seem to cause any issues:

[7.024198] brcmfmac: brcmf_sdio_htclk: HT Avail timeout (1000000): clkctl 0x50

[karlgrose]

Tested with a (native!) glibc build for this [1] machine; no issues so far after about an hour running standard apps (Chromium browser, Telegram Desktop chat, Konversation IRC, qterminal). Sound and video (Youtube) seem OK, CPU load does zoom to 2 or more in top while streaming YT in Chromium (probably expected) but otherwise the system seems responsive.

[1]

OS: Void Linux aarch64
Host: Raspberry Pi 4 Model B Rev 1.4
Kernel: 5.10.92_1
Uptime: 1 hour, 36 mins
Packages: 636 (xbps-query)
Shell: bash 5.1.16
Resolution: 1920x1080
DE: Lumina 1.6.2
Theme: gnome [GTK2], Adwaita [GTK3]
Icons: Adwaita [GTK2/3]
Terminal: qterminal
Terminal Font: Monospace 12
CPU: BCM2835 (4) @ 1.500GHz
Memory: 2075MiB / 3793MiB