mailbox api · Maintained

Maintainers

• M Jassi Brar <jassisinghbrar@gmail.com>

Paths

• F Documentation/devicetree/bindings/mailbox/
• F drivers/mailbox/
• F include/dt-bindings/mailbox/
• F include/linux/mailbox_client.h
• F include/linux/mailbox_controller.h

Last 30 days

Most active threads (last 7 days)

• WARM1d [PATCH 6.1 0000/1191] 6.1.188-rc1 review
  2026-09-12 16:49 · 8 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.12 0000/1376] 6.12.110-rc1 review
  2026-09-12 13:07 · 7 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.6 0000/1424] 6.6.157-rc1 review
  2026-09-12 15:10 · 5 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 0000/1518] 6.18.52-rc1 review
  2026-09-12 11:09 · 5 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 7.2 0000/1815] 7.2.6-rc1 review
  2026-09-12 09:03 · 5 replies in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d Linux 7.2.6
  2026-09-14 11:59 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d Linux 6.18.52
  2026-09-14 11:58 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Linux 6.12.110
  2026-09-14 11:58 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d Linux 6.6.157
  2026-09-14 11:58 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Linux 6.1.188
  2026-09-14 11:58 · 1 reply in 7d · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Active reviewers (last 30 days)

• Adam Young <hidden>
  11 attestations (11 Tested-by) · last on 2026-09-12
• Huisong Li <lihuisong@huawei.com>
  10 attestations (4 Acked-by, 1 Reviewed-by, 5 Tested-by) · last on 2026-09-12
• Robbie King <hidden>
  3 attestations (1 Reported-by, 2 Tested-by) · last on 2026-09-12
• Dmitry Baryshkov <hidden>
  3 attestations (3 Reviewed-by) · last on 2026-09-12
• Sudeep Holla <sudeep.holla@kernel.org>
  3 attestations (2 Reviewed-by, 1 Suggested-by) · last on 2026-09-03
• Peng Fan <peng.fan@nxp.com>
  3 attestations (3 Reviewed-by) · last on 2026-08-31
• Mathieu Poirier <mathieu.poirier@linaro.org>
  3 attestations (3 Reviewed-by) · last on 2026-08-31

Recent patches

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

• DORMANTno replies Re: Linux 7.2.6
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.52
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d Re: Linux 6.12.110
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.6.157
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d Re: Linux 6.1.188
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.15.221
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 5.10.270
  2026-09-14 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 5.10 716/798] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 5.15 831/935] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 3 (2M) [PATCH 6.1 1020/1191] mailbox: pcc: Use acpi_os_ioremap() instead of ioremap()
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 4 (2M) [PATCH 6.1 1019/1191] mailbox: pcc: Always clear the platform ack interrupt first
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 2 (0M) [PATCH 6.1 1018/1191] mailbox: pcc: Fix the possible race in updation of chan_in_use flag
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.1 1017/1191] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 1 (0M) [PATCH 6.1 1024/1191] mailbox: pcc: Fix command timeout due to missed interrupt
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.1 1023/1191] Revert "mailbox/pcc: support mailbox management of the shared buffer"
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.1 1022/1191] mailbox/pcc: support mailbox management of the shared buffer
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 3 (2M) [PATCH 6.1 1021/1191] mailbox: pcc: Always map the shared memory communication address
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 1 (0M) [PATCH 6.6 1231/1424] mailbox: pcc: Fix command timeout due to missed interrupt
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.6 1230/1424] Revert "mailbox/pcc: support mailbox management of the shared buffer"
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.6 1229/1424] mailbox/pcc: support mailbox management of the shared buffer
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 3 (2M) [PATCH 6.6 1228/1424] mailbox: pcc: Always map the shared memory communication address
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.6 1227/1424] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 1 (0M) [PATCH 6.12 1149/1376] mailbox: pcc: Fix command timeout due to missed interrupt
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.12 1148/1376] Revert "mailbox/pcc: support mailbox management of the shared buffer"
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.12 1147/1376] mailbox/pcc: support mailbox management of the shared buffer
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 3 (2M) [PATCH 6.12 1146/1376] mailbox: pcc: Always map the shared memory communication address
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.12 1145/1376] mailbox: rockchip: disable pclk on probe failure and unbind
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d REVIEWED: 1 (0M) [PATCH 6.12 1144/1376] mailbox: qcom-cpucp: handle NULL data in send_data callback
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• WARM1d [PATCH 6.12 1143/1376] mailbox: qcom-cpucp: fix PREEMPT_RT self-deadlock in IRQ handler
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• HOTtoday [PATCH 6.18 1212/1518] mailbox: riscv-sbi-mpxy: validate RPMI notification lengths
  2026-09-12 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Needs attention (review trailers in, no pickup)

Patches with review trailers that haven't landed in mainline and haven't been Acked by a maintainer. Oldest first.

• STALE129d REVIEWED: 4 (4M) [PATCH 6.12.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-07 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE128d REVIEWED: 4 (4M) [PATCH 6.18.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-07 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE128d REVIEWED: 11 (11M) [PATCH v5] mailbox: Make mbox_send_message() return error code when tx fails
  2026-05-08 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE120d REVIEWED: 11 (11M) [PATCH v6] mailbox: Make mbox_send_message() return error code when tx fails
  2026-05-10 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE123d REVIEWED: 4 (4M) [PATCH v2 v6.18.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-10 · Joonwon Kang <hidden> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 4 (4M) [PATCH RESEND 6.12.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-10 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE117d REVIEWED: 4 (4M) [PATCH RESEND v6.12.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-21 · Joonwon Kang <hidden> · 1 Reviewed-by
• STALE117d REVIEWED: 4 (4M) [PATCH RESEND v2 v6.18.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-21 · Joonwon Kang <hidden> · 1 Reviewed-by
• DORMANTno replies REVIEWED: 4 (4M) [PATCH v7.0.y] mailbox: Fix NULL message support in mbox_send_message()
  2026-05-21 · Joonwon Kang <hidden> · 1 Reviewed-by
• HOTtoday REVIEWED: 4 (4M) [PATCH AUTOSEL 6.18-6.12] mailbox: imx: use devm_of_platform_populate()
  2026-08-31 · Sasha Levin <sashal@kernel.org> · 2 Reviewed-by

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.

• STALE199d [PATCH 6.19 508/781] Revert "mailbox/pcc: support mailbox management of the shared buffer"
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE190d [PATCH 6.18 399/641] Revert "mailbox/pcc: support mailbox management of the shared buffer"
  2026-02-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.18.14
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE200d Re: Linux 6.19.4
  2026-02-26 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE189d [PATCH 6.19 109/844] mailbox: bcm-ferxrm-mailbox: Use default primary handler
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE189d [PATCH 6.19 356/844] mailbox: sprd: mask interrupts that are not handled
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE189d [PATCH 6.19 358/844] mailbox: sprd: clear delivery flag before handling TX done
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE189d [PATCH 6.19 622/844] mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• STALE199d [PATCH 6.18 556/752] mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()
  2026-02-28 · Sasha Levin <sashal@kernel.org>
• DORMANTno replies FAILED: Patch "mailbox: Prevent out-of-bounds access in fw_mbox_index_xlate()" failed to apply to 6.12-stable tree
  2026-03-01 · Sasha Levin <sashal@kernel.org>