Active subsystems in linux-arm-kernel

100 subsystems with patch activity in the last 7 days, busiest first. Each links to its own dashboard: recent patches, active threads and reviewers for the paths that subsystem claims in MAINTAINERS.

• arm64 port (aarch64 architecture)
  176 messages in 7d · last 2026-09-10 06:35 · Catalin Marinas et al.
• networking drivers
  94 messages in 7d · last 2026-09-10 10:25 · Andrew Lunn et al.
• open firmware and flattened device tree bindings
  80 messages in 7d · last 2026-09-10 10:25 · Rob Herring et al.
• kernel virtual machine for arm64 (kvm/arm64)
  57 messages in 7d · last 2026-09-09 22:20 · Marc Zyngier et al.
• documentation
  47 messages in 7d · last 2026-09-10 01:33 · Jonathan Corbet
• drm drivers
  37 messages in 7d · last 2026-09-09 21:21 · David Airlie et al.
• drm drivers and misc gpu patches
  37 messages in 7d · last 2026-09-09 21:21 · Maarten Lankhorst et al.
• arm/freescale imx / mxc / layerscape arm architecture
  36 messages in 7d · last 2026-09-10 10:16 · Frank Li et al.
• stmmac ethernet driver
  34 messages in 7d · last 2026-09-10 10:25 · Maxime Chevallier
• system control & power/management interface (scpi/scmi) message protocol drivers
  34 messages in 7d · last 2026-09-09 22:05 · Sudeep Holla
• iommu subsystem
  31 messages in 7d · last 2026-09-10 06:55 · Joerg Roedel et al.
• arm port Odd Fixes
  28 messages in 7d · last 2026-09-10 06:36 · Russell King
• sound - soc layer / dynamic audio power management (asoc) Supported
  23 messages in 7d · last 2026-09-10 11:44 · Liam Girdwood et al.
• arm smmu drivers
  22 messages in 7d · last 2026-09-10 06:55 · Will Deacon
• generic phy framework Supported
  21 messages in 7d · last 2026-09-10 09:21 · Vinod Koul
• arm/apple machine support
  20 messages in 7d · last 2026-09-09 22:08 · Sven Peter et al.
• sound
  19 messages in 7d · last 2026-09-10 11:44 · Jaroslav Kysela et al.
• usb subsystem Supported
  18 messages in 7d · last 2026-09-10 05:24 · Greg Kroah-Hartman
• kernel selftest framework
  17 messages in 7d · last 2026-09-09 15:57 · Shuah Khan et al.
• iio subsystem and drivers
  16 messages in 7d · last 2026-09-09 13:23 · Jonathan Cameron
• memory technology devices (mtd)
  16 messages in 7d · last 2026-09-09 08:31 · Miquel Raynal et al.
• common clk framework
  15 messages in 7d · last 2026-09-10 03:30 · Stephen Boyd et al.
• nand flash subsystem
  15 messages in 7d · last 2026-09-09 08:31 · Miquel Raynal
• bpf [general] (safe dynamic programs and tools) Supported
  15 messages in 7d · last 2026-09-08 05:50 · Alexei Starovoitov et al.
• multifunction devices (mfd)
  14 messages in 7d · last 2026-09-09 13:24 · Lee Jones
• i2c subsystem host drivers
  13 messages in 7d · last 2026-09-10 03:40 · Andi Shyti
• dma generic offload engine subsystem
  13 messages in 7d · last 2026-09-09 16:23 · Vinod Koul
• qualcomm ethqos ethernet driver
  13 messages in 7d · last 2026-09-08 14:58 · Mohd Ayaan Anwar
• thunderbolt driver
  13 messages in 7d · last 2026-09-06 18:37 · Andreas Noever et al.
• drm drivers for mediatek Supported
  12 messages in 7d · last 2026-09-10 09:21 · Chun-Kuang Hu et al.
• arm/mediatek usb3 phy driver
  11 messages in 7d · last 2026-09-10 09:21 · Chunfeng Yun
• omap2+ support
  11 messages in 7d · last 2026-09-09 13:24 · Aaro Koskinen et al.
• arm/mediatek soc support
  10 messages in 7d · last 2026-09-09 19:38 · Matthias Brugger et al.
• pci subsystem Supported
  10 messages in 7d · last 2026-09-08 14:52 · Bjorn Helgaas
• pci native host bridge and endpoint drivers Supported
  10 messages in 7d · last 2026-09-08 14:52 · Lorenzo Pieralisi et al.
• bpf [selftests] (test runners & infrastructure)
  9 messages in 7d · last 2026-09-08 05:50 · Andrii Nakryiko et al.
• arm pmu profiling and debugging
  8 messages in 7d · last 2026-09-10 11:46 · Will Deacon et al.
• risc-v architecture Supported
  8 messages in 7d · last 2026-09-10 06:35 · Paul Walmsley et al.
• power management core Supported
  8 messages in 7d · last 2026-09-09 22:05 · "Rafael J. Wysocki"
• ethernet phy library
  8 messages in 7d · last 2026-09-09 21:33 · Andrew Lunn et al.
• arm/risc-v/renesas architecture Supported
  8 messages in 7d · last 2026-09-09 19:37 · Geert Uytterhoeven et al.
• input (keyboard, mouse, joystick, touchscreen) drivers
  8 messages in 7d · last 2026-09-09 13:23 · Dmitry Torokhov
• linux for powerpc (32-bit and 64-bit) Supported
  8 messages in 7d · last 2026-09-09 09:28 · Madhavan Srinivasan
• x86 architecture (32-bit and 64-bit)
  8 messages in 7d · last 2026-09-09 09:28 · Thomas Gleixner et al.
• generic vdso library
  8 messages in 7d · last 2026-09-09 08:52 · Andy Lutomirski et al.
• omap1 support
  8 messages in 7d · last 2026-09-08 15:44 · Aaro Koskinen et al.
• omap i2c driver
  8 messages in 7d · last 2026-09-08 15:44 · Vignesh R
• journalling flash file system v2 (jffs2) Odd Fixes
  8 messages in 7d · last 2026-09-06 03:13 · David Woodhouse et al.
• spi subsystem
  7 messages in 7d · last 2026-09-10 11:34 · Mark Brown
• arm/samsung s3c, s5p and exynos arm architectures
  7 messages in 7d · last 2026-09-09 19:45 · Krzysztof Kozlowski et al.
• networking [dsa]
  7 messages in 7d · last 2026-09-09 14:04 · Andrew Lunn et al.
• voltage and current regulator framework Supported
  7 messages in 7d · last 2026-09-09 13:23 · Liam Girdwood et al.
• sparc + ultrasparc (sparc/sparc64)
  7 messages in 7d · last 2026-09-09 08:52 · "David S. Miller" et al.
• irqchip drivers
  7 messages in 7d · last 2026-09-08 14:27 · Thomas Gleixner
• performance events subsystem Supported
  7 messages in 7d · last 2026-09-08 14:07 · Peter Zijlstra et al.
• arm/allwinner sunxi soc support
  7 messages in 7d · last 2026-09-06 16:05 · Chen-Yu Tsai et al.
• driver core, kobjects, debugfs and sysfs Supported
  6 messages in 7d · last 2026-09-10 06:35 · Greg Kroah-Hartman et al.
• watchdog device drivers
  6 messages in 7d · last 2026-09-09 19:38 · Wim Van Sebroeck et al.
• real time clock (rtc) subsystem
  6 messages in 7d · last 2026-09-09 14:13 · Alexandre Belloni
• framebuffer layer
  6 messages in 7d · last 2026-09-09 13:23 · Helge Deller
• memory management
  6 messages in 7d · last 2026-09-09 09:28 · Andrew Morton
• arm/qualcomm mailing list
  6 messages in 7d · last 2026-09-08 14:58
• pwm subsystem
  6 messages in 7d · last 2026-09-08 13:06 · Uwe Kleine-König
• drm drivers for verisilicon display controller ip
  6 messages in 7d · last 2026-09-08 09:29 · Icenowy Zheng
• multimedia card (mmc), secure digital (sd) and sdio subsystem
  6 messages in 7d · last 2026-09-07 13:26 · Ulf Hansson
• arm/socfpga dwmac glue layer
  5 messages in 7d · last 2026-09-10 08:10 · Maxime Chevallier
• arm/zynq architecture Supported
  5 messages in 7d · last 2026-09-10 03:40 · Michal Simek
• hardware tracing facilities
  5 messages in 7d · last 2026-09-10 01:17 · Alexander Shishkin
• arm/tesla fsd soc support
  5 messages in 7d · last 2026-09-09 14:18 · Alim Akhtar
• backlight class/subsystem
  5 messages in 7d · last 2026-09-09 13:23 · Lee Jones et al.
• tegra iommu drivers Supported
  5 messages in 7d · last 2026-09-09 09:52 · Thierry Reding
• generic include/asm header files
  5 messages in 7d · last 2026-09-09 08:52 · Arnd Bergmann
• s390 architecture Supported
  5 messages in 7d · last 2026-09-09 08:52 · Heiko Carstens et al.
• cpu hotplug
  5 messages in 7d · last 2026-09-09 07:23 · Thomas Gleixner et al.
• scheduler
  5 messages in 7d · last 2026-09-09 06:27 · Ingo Molnar et al.
• bpf jit for arm64 Supported
  5 messages in 7d · last 2026-09-07 16:43 · Daniel Borkmann et al.
• can network drivers
  5 messages in 7d · last 2026-09-07 15:04 · Marc Kleine-Budde et al.
• cpu frequency scaling framework
  4 messages in 7d · last 2026-09-10 06:35 · "Rafael J. Wysocki" et al.
• led subsystem
  4 messages in 7d · last 2026-09-09 13:23 · Lee Jones et al.
• drm panic Supported
  4 messages in 7d · last 2026-09-09 08:59 · Jocelyn Falempe et al.
• crypto api
  4 messages in 7d · last 2026-09-08 19:16 · Herbert Xu et al.
• generic pm domains Supported
  4 messages in 7d · last 2026-09-07 11:17 · Ulf Hansson
• arm/qualcomm support
  4 messages in 7d · last 2026-09-07 10:50 · Bjorn Andersson et al.
• usb typec class
  4 messages in 7d · last 2026-09-06 18:37 · Heikki Krogerus
• generic architecture topology
  3 messages in 7d · last 2026-09-10 06:35 · Sudeep Holla
• mediatek mt76 wireless lan driver
  3 messages in 7d · last 2026-09-10 01:23 · Felix Fietkau et al.
• tracing
  3 messages in 7d · last 2026-09-09 22:05 · Steven Rostedt et al.
• sound - sound open firmware (sof) drivers Supported
  3 messages in 7d · last 2026-09-09 20:40 · Liam Girdwood et al.
• drm drivers for bridge chips
  3 messages in 7d · last 2026-09-09 17:36 · Andrzej Hajda et al.
• loongson-2 dma driver
  3 messages in 7d · last 2026-09-09 16:22 · Binbin Zhou
• power supply class/subsystem and drivers
  3 messages in 7d · last 2026-09-09 13:23 · Sebastian Reichel
• char and misc drivers Supported
  3 messages in 7d · last 2026-09-09 13:01 · Arnd Bergmann et al.
• nvmem framework
  3 messages in 7d · last 2026-09-09 10:49 · Srinivas Kandagatla
• mediatek usb3 drd ip driver
  3 messages in 7d · last 2026-09-09 10:31 · Chunfeng Yun
• memory management - core
  3 messages in 7d · last 2026-09-09 10:25 · Andrew Morton et al.
• loongarch
  3 messages in 7d · last 2026-09-09 08:52 · Huacai Chen
• mips
  3 messages in 7d · last 2026-09-09 08:52 · Thomas Bogendoerfer
• memory management - swap
  3 messages in 7d · last 2026-09-08 15:17 · Andrew Morton et al.
• bpf [library] (libbpf)
  3 messages in 7d · last 2026-09-08 05:50 · Andrii Nakryiko et al.
• bpf jit for sparc (32-bit and 64-bit) Odd Fixes
  3 messages in 7d · last 2026-09-08 05:49 · David S. Miller