s390 architecture · Supported

Maintainers

• M Heiko Carstens <hca@linux.ibm.com>
• M Vasily Gorbik <gor@linux.ibm.com>
• M Alexander Gordeev <agordeev@linux.ibm.com>
• R Christian Borntraeger <borntraeger@linux.ibm.com>
• R Sven Schnelle <svens@linux.ibm.com>

Paths

• F Documentation/driver-api/s390-drivers.rst
• F Documentation/arch/s390/
• F arch/s390/
• F drivers/s390/
• F drivers/watchdog/diag288_wdt.c

Last 30 days

Active reviewers (last 30 days)

• Yury Norov <yury.norov@gmail.com>
  1 attestation (1 Suggested-by) · last on 2026-06-25
• Masami Hiramatsu (Google) <mhiramat@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-06-25

Recent patches

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

• COOLING11d REVIEWED: 9 (9M) [PATCH v4 1/2] tracing: Move non-trace_printk prototypes into trace_controls.h
  2026-06-25 · Steven Rostedt <rostedt@kernel.org>
• COLD33d [PATCH 09/11] treewide: Convert custom kernel_param_ops .get callbacks to seq_buf via cocci
  2026-05-21 · Kees Cook <kees@kernel.org>
• COLD33d [PATCH 04/11] treewide: Convert struct kernel_param_ops initializers to DEFINE_KERNEL_PARAM_OPS
  2026-05-21 · Kees Cook <kees@kernel.org>
• STALE75d [RFC PATCH v1 5/9] uaccess: Switch to copy_{to/from}_user_partial() when relevant
  2026-04-27 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• STALE75d [RFC PATCH v1 2/9] uaccess: Convert INLINE_COPY_{TO/FROM}_USER to kconfig and reduce ifdefery
  2026-04-27 · "Christophe Leroy (CS GROUP)" <chleroy@kernel.org>
• STALE88d [PATCH 43/61] s390: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>
• STALE163d [PATCH v4 47/54] convert hypfs
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE163d [PATCH v4 46/54] hypfs: swich hypfs_create_u64() to returning int
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE163d [PATCH v4 45/54] hypfs: switch hypfs_create_str() to returning int
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE163d [PATCH v4 44/54] hypfs: don't pin dentries twice
  2025-11-18 · Al Viro <viro@zeniv.linux.org.uk>
• STALE238d [PATCH v3 41/50] hypfs: switch hypfs_create_str() to returning int
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE238d [PATCH v3 43/50] convert hypfs
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE238d [PATCH v3 42/50] hypfs: swich hypfs_create_u64() to returning int
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE238d [PATCH v3 40/50] hypfs: don't pin dentries twice
  2025-11-11 · Al Viro <viro@zeniv.linux.org.uk>
• STALE231d [PATCH v2 42/50] hypfs: swich hypfs_create_u64() to returning int
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE231d [PATCH v2 43/50] convert hypfs
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE231d [PATCH v2 40/50] hypfs: don't pin dentries twice
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE231d [PATCH v2 41/50] hypfs: switch hypfs_create_str() to returning int
  2025-10-28 · Al Viro <viro@zeniv.linux.org.uk>
• STALE292d [PATCH 38/39] hypfs: swich hypfs_create_u64() to returning int
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE292d [PATCH 37/39] hypfs: switch hypfs_create_str() to returning int
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE292d [PATCH 39/39] convert hypfs
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE292d [PATCH 36/39] hypfs: don't pin dentries twice
  2025-09-20 · Al Viro <viro@zeniv.linux.org.uk>
• STALE767d LANDED: 15 (15M) [PATCH 23/23] block: remove now unused queue limits helpers
  2024-04-09 · Christoph Hellwig <hch@lst.de>
• STALE783d REVIEWED: 13 (13M) [PATCH 23/23] block: remove now unused queue limits helpers
  2024-04-02 · Christoph Hellwig <hch@lst.de>
• STALE770d [PATCH 7/9] s390: Convert from tasklet to BH workqueue
  2024-03-27 · Allen Pais <hidden>
• STALE838d [PATCH 23/23] block: remove now unused queue limits helpers
  2024-03-24 · Christoph Hellwig <hch@lst.de>
• STALE887d LANDED [PATCH v2 2/4] eventfd: simplify eventfd_signal()
  2023-11-22 · Christian Brauner <brauner@kernel.org>
• STALE916d REVIEWED: 8 (7M) [PATCH 08/22] [v2] arch: consolidate arch_irq_work_raise prototypes
  2023-11-08 · Arnd Bergmann <arnd@kernel.org>
• STALE916d LANDED: 9 (9M) [PATCH 03/22] [RESEND] kprobes: unify kprobes_exceptions_nofify() prototypes
  2023-11-08 · Arnd Bergmann <arnd@kernel.org>
• STALE1000d [PATCH 12/19] fs: convert kill_litter_super to litter_shutdown_sb
  2023-09-13 · Christoph Hellwig <hch@lst.de>

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.

• STALE88d [PATCH 43/61] s390: Prefer IS_ERR_OR_NULL over manual NULL check
  2026-03-10 · Philipp Hahn <hidden>