Active subsystems in stable

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.

• networking [general]
  517 messages in 7d · last 2026-10-17 20:23 · "David S. Miller" et al.
• networking drivers
  376 messages in 7d · last 2026-10-17 18:13 · Andrew Lunn et al.
• drm drivers
  341 messages in 7d · last 2026-10-17 18:13 · David Airlie et al.
• scsi subsystem
  210 messages in 7d · last 2026-10-17 18:11 · "James E.J. Bottomley" et al.
• xfs filesystem Supported
  190 messages in 7d · last 2026-10-17 18:14 · Carlos Maiolino
• radeon and amdgpu drm drivers Supported
  172 messages in 7d · last 2026-10-17 18:09 · Alex Deucher et al.
• memory management
  148 messages in 7d · last 2026-10-17 18:13 · Andrew Morton
• sound
  134 messages in 7d · last 2026-10-17 18:13 · Jaroslav Kysela et al.
• bpf [general] (safe dynamic programs and tools) Supported
  124 messages in 7d · last 2026-10-17 18:13 · Alexei Starovoitov et al.
• drm drivers and misc gpu patches
  114 messages in 7d · last 2026-10-17 18:13 · Maarten Lankhorst et al.
• hid core layer
  95 messages in 7d · last 2026-10-17 18:07 · Jiri Kosina et al.
• bluetooth subsystem Supported
  94 messages in 7d · last 2026-10-17 18:13 · Marcel Holtmann et al.
• netfilter
  94 messages in 7d · last 2026-10-17 18:13 · Pablo Neira Ayuso et al.
• btrfs file system
  91 messages in 7d · last 2026-10-17 18:12 · David Sterba
• x86 architecture (32-bit and 64-bit)
  91 messages in 7d · last 2026-10-17 18:11 · Thomas Gleixner et al.
• bpf [core]
  87 messages in 7d · last 2026-10-17 18:13 · Alexei Starovoitov et al.
• usb subsystem Supported
  86 messages in 7d · last 2026-10-17 18:11 · Greg Kroah-Hartman
• kernel nfsd, sunrpc, and lockd servers Supported
  83 messages in 7d · last 2026-10-17 18:09 · Chuck Lever et al.
• amd display core Supported
  71 messages in 7d · last 2026-10-17 18:07 · Harry Wentland et al.
• tracing
  69 messages in 7d · last 2026-10-17 18:10 · Steven Rostedt et al.
• mediatek mt76 wireless lan driver
  69 messages in 7d · last 2026-10-17 18:09 · Felix Fietkau et al.
• universal flash storage host controller driver Supported
  67 messages in 7d · last 2026-10-17 18:03
• common internet file system client (cifs and smb3) Supported
  66 messages in 7d · last 2026-10-17 18:12 · Paulo Alcantara et al.
• nfs, sunrpc, and lockd clients
  65 messages in 7d · last 2026-10-17 18:08 · Trond Myklebust et al.
• sound - soc layer / dynamic audio power management (asoc) Supported
  64 messages in 7d · last 2026-10-17 18:07 · Liam Girdwood et al.
• tc subsystem
  61 messages in 7d · last 2026-10-17 18:00 · Jamal Hadi Salim et al.
• s390 architecture Supported
  59 messages in 7d · last 2026-10-17 18:11 · Heiko Carstens et al.
• block layer
  58 messages in 7d · last 2026-10-17 18:02 · Jens Axboe
• intel ethernet drivers
  57 messages in 7d · last 2026-10-17 18:10 · Tony Nguyen et al.
• mellanox mlx5 core vpi driver
  57 messages in 7d · last 2026-10-17 18:10 · Saeed Mahameed et al.
• can network drivers
  57 messages in 7d · last 2026-10-17 17:17 · Marc Kleine-Budde et al.
• kernel virtual machine for x86 (kvm/x86) Supported
  56 messages in 7d · last 2026-10-17 18:11 · Sean Christopherson et al.
• tty layer and serial drivers Supported
  56 messages in 7d · last 2026-10-17 18:06 · Greg Kroah-Hartman et al.
• kernel smb3 server (ksmbd)
  54 messages in 7d · last 2026-10-17 18:13 · Namjae Jeon et al.
• infiniband subsystem Supported
  54 messages in 7d · last 2026-10-17 18:11 · Jason Gunthorpe et al.
• media input infrastructure (v4l/dvb)
  50 messages in 7d · last 2026-10-17 18:08 · Mauro Carvalho Chehab
• risc-v architecture Supported
  50 messages in 7d · last 2026-10-17 18:03 · Paul Walmsley et al.
• oracle cluster filesystem 2 (ocfs2) Supported
  49 messages in 7d · last 2026-10-17 18:09 · Mark Fasheh et al.
• memory mapping
  49 messages in 7d · last 2026-10-17 17:28 · Andrew Morton et al.
• f2fs file system
  48 messages in 7d · last 2026-10-17 18:11 · Jaegeuk Kim et al.
• arm64 port (aarch64 architecture)
  47 messages in 7d · last 2026-10-17 18:02 · Catalin Marinas et al.
• pci subsystem Supported
  46 messages in 7d · last 2026-10-17 18:09 · Bjorn Helgaas
• iio subsystem and drivers
  46 messages in 7d · last 2026-10-17 17:57 · Jonathan Cameron
• mac80211
  44 messages in 7d · last 2026-10-17 18:06 · Johannes Berg
• spi subsystem
  44 messages in 7d · last 2026-10-17 18:03 · Mark Brown
• linux for powerpc (32-bit and 64-bit) Supported
  43 messages in 7d · last 2026-10-17 18:40 · Madhavan Srinivasan
• 802.11 (including cfg80211/nl80211)
  43 messages in 7d · last 2026-10-17 18:11 · Johannes Berg
• qualcomm ath12k wireless driver Supported
  43 messages in 7d · last 2026-10-17 18:04 · Jeff Johnson
• scheduler
  42 messages in 7d · last 2026-10-17 18:10 · Ingo Molnar et al.
• bluetooth drivers Supported
  39 messages in 7d · last 2026-10-17 16:59 · Marcel Holtmann et al.
• gpio subsystem
  38 messages in 7d · last 2026-10-17 17:50 · Linus Walleij et al.
• team driver Supported
  38 messages in 7d · last 2026-10-17 17:36 · Jiri Pirko
• can network layer
  37 messages in 7d · last 2026-10-17 20:23 · Oliver Hartkopp et al.
• nvm express target driver Supported
  36 messages in 7d · last 2026-10-17 18:01 · Christoph Hellwig et al.
• crypto api
  36 messages in 7d · last 2026-10-17 17:42 · Herbert Xu et al.
• hid steam controller
  35 messages in 7d · last 2026-10-17 18:01 · Vicki Pfau
• broadcom bnxt_en 50 gigabit ethernet driver
  35 messages in 7d · last 2026-10-17 17:47 · Michael Chan et al.
• common clk framework
  34 messages in 7d · last 2026-10-17 19:43 · Stephen Boyd et al.
• iommu subsystem
  33 messages in 7d · last 2026-10-17 18:11 · Joerg Roedel et al.
• intel drm i915 driver (meteor lake, dg2 and older excluding poulsbo, moorestown and derivative) Supported
  33 messages in 7d · last 2026-10-17 18:11 · Jani Nikula et al.
• memory management - core
  32 messages in 7d · last 2026-10-17 18:11 · Andrew Morton et al.
• amd kfd Supported
  32 messages in 7d · last 2026-10-17 18:06 · Felix Kuehling
• hyper-v/azure core and drivers Supported
  32 messages in 7d · last 2026-10-17 17:58 · Haiyang Zhang et al.
• driver core, kobjects, debugfs and sysfs Supported
  30 messages in 7d · last 2026-10-17 18:06 · Greg Kroah-Hartman et al.
• virtio core
  29 messages in 7d · last 2026-10-17 18:11 · "Michael S. Tsirkin" et al.
• drm drivers for vc4 Supported
  29 messages in 7d · last 2026-10-17 17:44 · Maxime Ripard et al.
• security subsystem Supported
  28 messages in 7d · last 2026-10-17 18:40 · Paul Moore et al.
• kernel selftest framework
  28 messages in 7d · last 2026-10-17 18:11 · Shuah Khan et al.
• staging subsystem Supported
  28 messages in 7d · last 2026-10-17 18:08 · Greg Kroah-Hartman
• nvm express driver Supported
  27 messages in 7d · last 2026-10-17 18:13 · Keith Busch et al.
• documentation
  27 messages in 7d · last 2026-10-17 18:05 · Jonathan Corbet
• ext4 file system
  27 messages in 7d · last 2026-10-17 17:47 · "Theodore Ts'o"
• io_uring
  26 messages in 7d · last 2026-10-17 17:52 · Jens Axboe
• acpi Supported
  25 messages in 7d · last 2026-10-17 18:07 · "Rafael J. Wysocki"
• networking [mptcp]
  24 messages in 7d · last 2026-10-17 18:11 · Matthieu Baerts et al.
• drm compute accelerators drivers and framework
  24 messages in 7d · last 2026-10-17 18:11 · Oded Gabbay
• kernel virtual machine for arm64 (kvm/arm64)
  24 messages in 7d · last 2026-10-17 17:46 · Marc Zyngier et al.
• scheduler - sched_ext
  24 messages in 7d · last 2026-10-17 15:55
• s390 zcrypt and pkey driver and ap bus Supported
  23 messages in 7d · last 2026-10-17 18:11 · Harald Freudenberger et al.
• x86 platform drivers
  22 messages in 7d · last 2026-10-17 18:43 · Hans de Goede et al.
• networking [ipv4/ipv6]
  22 messages in 7d · last 2026-10-17 18:12 · David Ahern et al.
• hardware monitoring
  22 messages in 7d · last 2026-10-17 17:53 · Guenter Roeck
• tipc network layer
  21 messages in 7d · last 2026-10-17 18:12 · Jon Maloy et al.
• ceph distributed file system client (ceph) Supported
  21 messages in 7d · last 2026-10-17 18:08 · Ilya Dryomov et al.
• intel drm display for xe and i915 drivers Supported
  21 messages in 7d · last 2026-10-17 17:43 · Jani Nikula et al.
• filesystems [netfs library] Supported
  21 messages in 7d · last 2026-10-17 16:49 · David Howells et al.
• framebuffer layer
  20 messages in 7d · last 2026-10-17 17:52 · Helge Deller
• intel drm xe driver (lunar lake and newer) Supported
  20 messages in 7d · last 2026-10-17 16:40 · Matthew Brost et al.
• qlogic qla2xxx fc-scsi driver Supported
  19 messages in 7d · last 2026-10-17 18:11 · Nilesh Javali
• ethernet bridge
  19 messages in 7d · last 2026-10-17 18:08 · Nikolay Aleksandrov et al.
• loongarch
  19 messages in 7d · last 2026-10-17 17:57 · Huacai Chen
• op-tee driver
  19 messages in 7d · last 2026-10-17 17:19 · Jens Wiklander
• tee subsystem
  19 messages in 7d · last 2026-10-17 17:19 · Jens Wiklander
• intel wireless wifi link (iwlwifi) Supported
  18 messages in 7d · last 2026-10-17 18:06 · Miri Korenblit
• control group (cgroup)
  18 messages in 7d · last 2026-10-17 18:05 · Tejun Heo et al.
• file locking (flock() and fcntl()/lockf())
  18 messages in 7d · last 2026-10-17 17:59 · Jeff Layton et al.
• edac-core Supported
  18 messages in 7d · last 2026-10-17 17:51 · Borislav Petkov et al.
• kernel virtual machine for risc-v (kvm/riscv)
  18 messages in 7d · last 2026-10-17 17:38 · Anup Patel
• drm driver for qualcomm display hardware
  17 messages in 7d · last 2026-10-17 18:07 · Rob Clark et al.
• i3c subsystem
  17 messages in 7d · last 2026-10-17 18:05 · Alexandre Belloni