dma buffer sharing framework · Maintained

Maintainers

• M Sumit Semwal <sumit.semwal@linaro.org>
• M Christian König <christian.koenig@amd.com>

Paths

• F Documentation/driver-api/dma-buf.rst
• F Documentation/userspace-api/dma-buf-alloc-exchange.rst
• F drivers/dma-buf/
• F include/linux/*fence.h
• F include/linux/dma-buf.h
• F include/linux/dma-buf/
• F include/linux/dma-resv.h
• F rust/helpers/dma-resv.c

Last 30 days

Recent patches

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

• WARM3d [PATCH v19 28/40] dept: assign unique dept_key to each distinct dma fence caller
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• WARM3d [PATCH v19 20/40] dept: apply timeout consideration to dma fence wait
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• WARM3d [PATCH v19 14/40] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2026-07-06 · Byungchul Park <byungchul@sk.com>
• COLD29d [PATCH net-next v3 2/4] udmabuf: emit one sg entry per pinned folio
  2026-06-12 · Bobby Eshleman <hidden>
• COLD31d [PATCH v7 3/5] dma-buf: add optional get_tph() callback
  2026-06-11 · Zhiping Zhang <hidden>
• COLD29d [PATCH net-next v2 2/4] udmabuf: emit one sg entry per pinned folio
  2026-06-11 · Bobby Eshleman <hidden>
• COLD35d [PATCH net-next 2/4] udmabuf: emit one sg entry per pinned folio
  2026-06-04 · Bobby Eshleman <hidden>
• STALE121d [PATCH v3 12/12] treewide: change inode->i_ino from unsigned long to u64
  2026-03-04 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE138d [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE155d [RFC 1/2] Vfio: add callback to get tph info for dmabuf
  2026-02-09 · Zhiping Zhang <hidden>
• COOLING10d [PATCH v18 28/42] dept: assign unique dept_key to each distinct dma fence caller
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COOLING10d [PATCH v18 20/42] dept: apply timeout consideration to dma fence wait
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COOLING10d [PATCH v18 14/42] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• STALE238d REVIEWED: 9 (9M) [PATCH v3 04/21] dma-buf: Switch to use %ptSp
  2025-11-13 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE245d REVIEWED: 3 (3M) [PATCH v2 04/21] dma-buf: Switch to use %ptSp
  2025-11-11 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE246d [PATCH v1 05/23] dma-buf: Switch to use %ptSp
  2025-11-10 · Andy Shevchenko <andriy.shevchenko@linux.intel.com>
• STALE226d [PATCH v17 32/47] dept: assign unique dept_key to each distinct dma fence caller
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE226d [PATCH v17 23/47] dept: apply timeout consideration to dma fence wait
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE226d [PATCH v17 17/47] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE356d [PATCH v16 32/42] dept: assign unique dept_key to each distinct dma fence caller
  2025-05-19 · Byungchul Park <byungchul@sk.com>
• STALE356d [PATCH v16 23/42] dept: apply timeout consideration to dma fence wait
  2025-05-19 · Byungchul Park <byungchul@sk.com>
• STALE356d [PATCH v16 17/42] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-05-19 · Byungchul Park <byungchul@sk.com>
• STALE425d [PATCH v15 33/43] dept: assign unique dept_key to each distinct dma fence caller
  2025-05-13 · Byungchul Park <byungchul@sk.com>
• STALE425d [PATCH v15 23/43] dept: apply timeout consideration to dma fence wait
  2025-05-13 · Byungchul Park <byungchul@sk.com>
• STALE425d [PATCH v15 17/43] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-05-13 · Byungchul Park <byungchul@sk.com>
• STALE763d LANDED [PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-05-16 · Steven Rostedt <rostedt@goodmis.org>
• STALE853d [FYI][PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-02-23 · Steven Rostedt <rostedt@goodmis.org>
• STALE1084d [RFC PATCH 10/10] memory-provider: add dmabuf devmem provider
  2023-07-10 · Mina Almasry <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.

• STALE155d [RFC 1/2] Vfio: add callback to get tph info for dmabuf
  2026-02-09 · Zhiping Zhang <hidden>
• STALE138d [PATCH 56/61] dma-buf: update format string for u64 i_ino
  2026-02-26 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 054/110] dma-buf: use PRIino format for i_ino
  2026-03-02 · Jeff Layton <jlayton@kernel.org>
• STALE133d [PATCH v2 107/110] dma-buf: replace PRIino with %llu/%llx format strings
  2026-03-02 · Jeff Layton <jlayton@kernel.org>