Active subsystems in b4-sent

96 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.

• open firmware and flattened device tree bindings
  50 messages in 7d · last 2026-09-21 07:50 · Rob Herring et al.
• dynamic debug
  29 messages in 7d · last 2026-09-16 15:33 · Jason Baron et al.
• media input infrastructure (v4l/dvb)
  24 messages in 7d · last 2026-09-20 14:58 · Mauro Carvalho Chehab
• memory management
  17 messages in 7d · last 2026-09-21 06:16 · Andrew Morton
• iio subsystem and drivers
  15 messages in 7d · last 2026-09-21 01:06 · Jonathan Cameron
• control group - memory resource controller (memcg)
  14 messages in 7d · last 2026-09-21 06:16 · Johannes Weiner et al.
• kernel selftest framework
  14 messages in 7d · last 2026-09-21 06:00 · Shuah Khan et al.
• arm/amlogic meson soc support
  13 messages in 7d · last 2026-09-20 10:25 · Neil Armstrong et al.
• arm/qualcomm support
  11 messages in 7d · last 2026-09-20 11:05 · Bjorn Andersson et al.
• drm drivers
  11 messages in 7d · last 2026-09-20 11:05 · David Airlie et al.
• drm drivers and misc gpu patches
  10 messages in 7d · last 2026-09-20 11:05 · Maarten Lankhorst et al.
• networking drivers
  9 messages in 7d · last 2026-09-21 06:00 · Andrew Lunn et al.
• gpio subsystem
  8 messages in 7d · last 2026-09-21 04:23 · Linus Walleij et al.
• common clk framework
  8 messages in 7d · last 2026-09-21 04:23 · Stephen Boyd et al.
• arm/qualcomm mailing list
  8 messages in 7d · last 2026-09-20 11:05
• drm panel drivers
  8 messages in 7d · last 2026-09-20 11:05 · Neil Armstrong
• drm driver for samsung s6e3ha8 panels
  8 messages in 7d · last 2026-09-20 11:05 · Dzmitry Sankouski
• arm/apple machine support
  8 messages in 7d · last 2026-09-18 13:28 · Sven Peter et al.
• usb subsystem Supported
  7 messages in 7d · last 2026-09-18 10:11 · Greg Kroah-Hartman
• generic include/asm header files
  7 messages in 7d · last 2026-09-16 15:33 · Arnd Bergmann
• rtl8xxxu wireless driver (rtl8xxxu)
  6 messages in 7d · last 2026-09-21 07:59 · Jes Sorensen
• multifunction devices (mfd)
  6 messages in 7d · last 2026-09-21 07:50 · Lee Jones
• mailbox api
  6 messages in 7d · last 2026-09-18 13:28 · Jassi Brar
• documentation
  6 messages in 7d · last 2026-09-18 08:54 · Jonathan Corbet
• hid core layer
  5 messages in 7d · last 2026-09-19 10:36 · Jiri Kosina et al.
• hugetlb subsystem
  5 messages in 7d · last 2026-09-18 08:54 · Muchun Song et al.
• arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support
  4 messages in 7d · last 2026-09-21 00:26 · Andrew Lunn et al.
• performance events subsystem Supported
  4 messages in 7d · last 2026-09-20 02:34 · Peter Zijlstra et al.
• arm/freescale imx / mxc / layerscape arm architecture
  4 messages in 7d · last 2026-09-19 06:54 · Frank Li et al.
• networking [general]
  4 messages in 7d · last 2026-09-18 16:28 · "David S. Miller" et al.
• khadas mcu mfd driver
  4 messages in 7d · last 2026-09-17 08:00 · Neil Armstrong
• pin control subsystem
  3 messages in 7d · last 2026-09-21 04:23 · Linus Walleij
• tty layer and serial drivers Supported
  3 messages in 7d · last 2026-09-21 04:23 · Greg Kroah-Hartman et al.
• loongson pwm driver
  3 messages in 7d · last 2026-09-20 12:02 · Binbin Zhou
• pwm subsystem
  3 messages in 7d · last 2026-09-20 12:02 · Uwe Kleine-König
• iommu subsystem
  3 messages in 7d · last 2026-09-18 13:28 · Joerg Roedel et al.
• input (keyboard, mouse, joystick, touchscreen) drivers
  3 messages in 7d · last 2026-09-18 13:28 · Dmitry Torokhov
• control group (cgroup)
  3 messages in 7d · last 2026-09-18 08:54 · Tejun Heo et al.
• memory technology devices (mtd)
  3 messages in 7d · last 2026-09-17 13:00 · Miquel Raynal et al.
• thermal Supported
  3 messages in 7d · last 2026-09-17 08:00 · Rafael J. Wysocki et al.
• usb typec class
  3 messages in 7d · last 2026-09-16 19:36 · Heikki Krogerus
• nvmem framework
  2 messages in 7d · last 2026-09-21 07:50 · Srinivas Kandagatla
• shrinker
  2 messages in 7d · last 2026-09-21 06:16 · Andrew Morton et al.
• memory management - mglru (multi-gen lru)
  2 messages in 7d · last 2026-09-21 06:16 · Andrew Morton
• memory management - reclaim
  2 messages in 7d · last 2026-09-21 06:16 · Andrew Morton et al.
• bpf [selftests] (test runners & infrastructure)
  2 messages in 7d · last 2026-09-21 06:00 · Andrii Nakryiko et al.
• bpf [general] (safe dynamic programs and tools) Supported
  2 messages in 7d · last 2026-09-21 06:00 · Alexei Starovoitov et al.
• gpio regmap
  2 messages in 7d · last 2026-09-21 04:23 · Michael Walle
• networking [dsa]
  2 messages in 7d · last 2026-09-21 03:56 · Andrew Lunn et al.
• marvell 88e6xxx ethernet switch fabric driver
  2 messages in 7d · last 2026-09-21 03:56 · Andrew Lunn
• generic phy framework Supported
  2 messages in 7d · last 2026-09-19 06:54 · Vinod Koul
• arm/nxp s32g/s32r dwmac ethernet driver
  2 messages in 7d · last 2026-09-19 06:54 · Jan Petrous
• ethernet phy library
  2 messages in 7d · last 2026-09-19 06:54 · Andrew Lunn et al.
• qualcomm ipc router (qrtr) driver
  2 messages in 7d · last 2026-09-18 16:28 · Manivannan Sadhasivam
• control group - device memory controller (dmem)
  2 messages in 7d · last 2026-09-18 08:54 · Maarten Lankhorst et al.
• qualcomm clock drivers Supported
  2 messages in 7d · last 2026-09-17 13:57 · Bjorn Andersson
• nand flash subsystem
  2 messages in 7d · last 2026-09-17 13:00 · Miquel Raynal
• hardware monitoring
  2 messages in 7d · last 2026-09-17 09:49 · Guenter Roeck
• kandou kb9002 pcie retimer hwmon driver
  2 messages in 7d · last 2026-09-17 09:49 · Andy Chung
• mediatek usb3 drd ip driver
  2 messages in 7d · last 2026-09-17 07:33 · Chunfeng Yun
• module support
  2 messages in 7d · last 2026-09-16 15:33 · Luis Chamberlain et al.
• drm driver for qualcomm display hardware
  2 messages in 7d · last 2026-09-16 14:23 · Rob Clark et al.
• qualcomm tsens thermal driver
  2 messages in 7d · last 2026-09-16 14:23 · Amit Kucheria et al.
• mediatek board level shutdown drivers
  1 message in 7d · last 2026-09-21 07:50 · Sen Chu et al.
• mediatek pmic led driver
  1 message in 7d · last 2026-09-21 07:50 · Sen Chu et al.
• arm/mediatek soc support
  1 message in 7d · last 2026-09-21 07:50 · Matthias Brugger et al.
• arm primecell bus support Odd Fixes
  1 message in 7d · last 2026-09-21 04:23 · Russell King
• synopsys designware 8250 uart driver Supported
  1 message in 7d · last 2026-09-21 04:23 · Ilpo Järvinen
• intel lpss (low power subsystem) drivers Supported
  1 message in 7d · last 2026-09-21 04:23
• arm64 port (aarch64 architecture)
  1 message in 7d · last 2026-09-21 04:23 · Catalin Marinas et al.
• arm and arm64 soc sub-architectures (common parts)
  1 message in 7d · last 2026-09-21 04:23 · Arnd Bergmann et al.
• hibernation (aka software suspend, aka swsusp) Supported
  1 message in 7d · last 2026-09-20 14:35 · "Rafael J. Wysocki"
• suspend to ram Supported
  1 message in 7d · last 2026-09-20 14:35 · "Rafael J. Wysocki"
• spi subsystem
  1 message in 7d · last 2026-09-20 08:13 · Mark Brown
• stmmac ethernet driver
  1 message in 7d · last 2026-09-19 06:54 · Maxime Chevallier
• arm/nxp s32g pcie controller driver
  1 message in 7d · last 2026-09-19 06:54 · Ciprian Marian Costea
• pci subsystem Supported
  1 message in 7d · last 2026-09-19 06:54 · Bjorn Helgaas
• pci native host bridge and endpoint drivers Supported
  1 message in 7d · last 2026-09-19 06:54 · Lorenzo Pieralisi et al.
• arm/samsung s3c, s5p and exynos arm architectures
  1 message in 7d · last 2026-09-19 01:04 · Krzysztof Kozlowski et al.
• google tensor soc support
  1 message in 7d · last 2026-09-19 01:04 · Peter Griffin
• networking [macsec]
  1 message in 7d · last 2026-09-18 19:01 · Sabrina Dubroca
• qualcomm ath12k wireless driver Supported
  1 message in 7d · last 2026-09-18 16:28 · Jeff Johnson
• qualcomm atheros ath11k wireless driver Supported
  1 message in 7d · last 2026-09-18 16:28 · Jeff Johnson
• qualcomm atheros ath10k wireless driver Supported
  1 message in 7d · last 2026-09-18 00:04 · Jeff Johnson
• risc-v architecture Supported
  1 message in 7d · last 2026-09-17 15:06 · Paul Walmsley et al.
• networking [tcp]
  1 message in 7d · last 2026-09-17 13:41 · Eric Dumazet et al.
• bpf [l7 framework] (sockmap)
  1 message in 7d · last 2026-09-17 13:41 · John Fastabend et al.
• networking [mptcp]
  1 message in 7d · last 2026-09-17 13:41 · Matthieu Baerts et al.
• spi nor subsystem
  1 message in 7d · last 2026-09-17 05:02 · Pratyush Yadav et al.
• memory management - misc
  1 message in 7d · last 2026-09-16 23:39 · Andrew Morton et al.
• chinese documentation
  1 message in 7d · last 2026-09-16 23:39 · Alex Shi et al.
• multiplexer subsystem Odd Fixes
  1 message in 7d · last 2026-09-16 17:26 · Peter Rosin
• printk
  1 message in 7d · last 2026-09-16 15:33 · Petr Mladek
• rust Supported
  1 message in 7d · last 2026-09-16 15:10 · Miguel Ojeda
• rust [num]
  1 message in 7d · last 2026-09-16 15:10 · Alexandre Courbot
• multimedia card (mmc), secure digital (sd) and sdio subsystem
  1 message in 7d · last 2026-09-16 14:23 · Ulf Hansson