char and misc drivers · Supported

Maintainers

• M Arnd Bergmann <arnd@arndb.de>
• M Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Paths

• F drivers/char/
• F drivers/misc/
• F include/linux/miscdevice.h
• F rust/kernel/miscdevice.rs
• F samples/rust/rust_misc_device.rs
• X drivers/char/agp/
• X drivers/char/hw_random/
• X drivers/char/ipmi/
• X drivers/char/random.c
• X drivers/char/tpm/

Last 30 days

Recent patches

Most-recent 30 patches in this subsystem on linux-hyperv (capped at 30), ordered by date desc.

• COLD29d [PATCH 31/32] treewide: convert rdmsrq() from a macro to an inline function
  2026-06-29 · Juergen Gross <jgross@suse.com>
• STALE126d REVIEWED: 7 (7M) [PATCH v4 13/21] hpet: replace deprecated mmap hook with mmap_prepare
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE126d REVIEWED: 7 (7M) [PATCH v4 12/21] misc: open-dice: replace deprecated mmap hook with mmap_prepare
  2026-03-20 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE150d REVIEWED: 7 (7M) [PATCH v3 08/16] hpet: replace deprecated mmap hook with mmap_prepare
  2026-03-19 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE150d REVIEWED: 7 (7M) [PATCH v3 07/16] misc: open-dice: replace deprecated mmap hook with mmap_prepare
  2026-03-19 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE151d [PATCH v2 08/16] hpet: replace deprecated mmap hook with mmap_prepare
  2026-03-16 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE151d [PATCH v2 07/16] misc: open-dice: replace deprecated mmap hook with mmap_prepare
  2026-03-16 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE153d [PATCH 08/15] hpet: replace deprecated mmap hook with mmap_prepare
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE153d [PATCH 07/15] misc: open-dice: replace deprecated mmap hook with mmap_prepare
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE472d LANDED: 28 (28M) [PATCH v4A 01/15] x86/msr: Add missing includes of <asm/msr.h>
  2025-05-01 · "Xin Li (Intel)" <xin@zytor.com>
• STALE472d REVIEWED: 21 (21M) [PATCH v4 01/15] x86/msr: Add missing includes of <asm/msr.h>
  2025-04-27 · "Xin Li (Intel)" <xin@zytor.com>
• STALE482d [PATCH v2 3/3] vhost/vsock: use netns of process that opens the vhost-vsock-netns device
  2025-03-12 · Bobby Eshleman <hidden>
• STALE522d [RFC 4/5] vmx_balloon: update the NR_BALLOON_PAGES state
  2025-03-12 · Nico Pache <hidden>
• STALE565d REVIEWED: 5 (3M) [PATCH v2] treewide: const qualify ctl_tables where applicable
  2025-01-10 · Joel Granados <joel.granados@kernel.org>
• STALE584d [PATCH] treewide: const qualify ctl_tables where applicable
  2025-01-09 · Joel Granados <joel.granados@kernel.org>
• STALE622d LANDED [PATCH v2 06/10] sysfs: treewide: constify attribute callback of bin_attribute::mmap()
  2024-11-03 · Thomas Weißschuh <linux@weissschuh.net>
• STALE796d LANDED [PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-05-16 · Steven Rostedt <rostedt@goodmis.org>
• STALE886d [FYI][PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-02-23 · Steven Rostedt <rostedt@goodmis.org>
• STALE1042d [PATCH v2 02/15] hpet: Remove now superfluous sentinel element from ctl_table array
  2023-10-02 · Joel Granados via B4 Relay <devnull+j.granados.samsung.com@kernel.org>
• STALE1050d [PATCH 02/15] hpet: Remove now superfluous sentinel element from ctl_table array
  2023-09-28 · Joel Granados via B4 Relay <devnull+j.granados.samsung.com@kernel.org>
• STALE1151d [PATCH 09/11] sysctl: Remove the end element in sysctl table arrays
  2023-06-21 · Joel Granados <hidden>
• STALE1151d [PATCH 07/11] sysctl: Add size to register_sysctl
  2023-06-21 · Joel Granados <hidden>
• STALE1257d LANDED [PATCH 5/7] sgi-xp: simplify sysctl registration
  2023-03-02 · Luis Chamberlain <mcgrof@kernel.org>
• STALE1546d [PATCH 21/30] panic: Introduce the panic pre-reboot notifier list
  2022-04-27 · "Guilherme G. Piccoli" <gpiccoli@igalia.com>
• STALE1546d [PATCH 19/30] panic: Add the panic hypervisor notifier list
  2022-04-27 · "Guilherme G. Piccoli" <gpiccoli@igalia.com>
• STALE1546d LANDED [PATCH 05/30] misc/pvpanic: Convert regular spinlock into trylock on panic path
  2022-04-27 · "Guilherme G. Piccoli" <gpiccoli@igalia.com>
• STALE1852d LANDED: 47 (47M) [PATCH v4 5/5] bus: Make remove callback return void
  2021-07-13 · Uwe Kleine-König <hidden>
• STALE1861d REVIEWED: 47 (47M) [PATCH v3 5/5] bus: Make remove callback return void
  2021-07-13 · Uwe Kleine-König <hidden>
• STALE1859d REVIEWED: 45 (45M) [PATCH v2 4/4] bus: Make remove callback return void
  2021-07-06 · Uwe Kleine-König <hidden>
• STALE1866d [PATCH] bus: Make remove callback return void
  2021-07-06 · Uwe Kleine-König <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE153d [PATCH 07/15] misc: open-dice: replace deprecated mmap hook with mmap_prepare
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
• STALE153d [PATCH 08/15] hpet: replace deprecated mmap hook with mmap_prepare
  2026-03-12 · "Lorenzo Stoakes (Oracle)" <ljs@kernel.org>