hardware random number generator core · Odd fixes

Maintainers

• M Olivia Mackall <olivia@selenic.com>
• M Herbert Xu <herbert@gondor.apana.org.au>

Paths

• F Documentation/admin-guide/hw_random.rst
• F Documentation/devicetree/bindings/rng/
• F drivers/char/hw_random/
• F include/linux/hw_random.h

Last 30 days

Most active threads (last 7 days)

• HOTtoday [PATCH v1] hwrng: imx-rngc: Disable clock on registration failure
  2026-08-02 22:23 · 0 replies in 7d · Yuho Choi <hidden>

Active reviewers (last 30 days)

• Conor Dooley <conor.dooley@microchip.com>
  1 attestation (1 Acked-by) · last on 2026-07-23
• Rob Herring (Arm) <robh@kernel.org>
  1 attestation (1 Acked-by) · last on 2026-07-10

Recent patches

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

• HOTtoday [PATCH v1] hwrng: imx-rngc: Disable clock on registration failure
  2026-08-02 · Yuho Choi <hidden>
• COOLING4d [PATCH v6 2/2] hwrng: starfive: rework clk/reset teardown order for JHB100
  2026-07-23 · lianfeng.ouyang <hidden>
• COOLING4d REVIEWED: 3 (3M) [PATCH v6 1/2] dt-bindings: rng: starfive,jh7110-trng: add jhb100, drop jh8100
  2026-07-23 · lianfeng.ouyang <hidden>
• COOLING7d [PATCH] hwrng: stm32 - Fix runtime PM cleanup on registration failure
  2026-07-18 · Can Peng <hidden>
• COOLING6d [PATCH v4] hwrng: core - Stop/start hwrng_fillfn() kthread before/after suspend-resume
  2026-07-13 · "Thomas Richard (TI)" <thomas.richard@bootlin.com>
• COLD17d [PATCH v2 2/2] hwrng: omap: Enable on Renesas RZ/N1D
  2026-07-10 · "Miquel Raynal (Schneider Electric)" <miquel.raynal@bootlin.com>
• COLD17d REVIEWED: 7 (7M) [PATCH v2 1/2] dt-bindings: rng: Rename the title of the EIP-76 file
  2026-07-10 · "Miquel Raynal (Schneider Electric)" <miquel.raynal@bootlin.com>
• COLD17d [PATCH 1/3] hwrng: drivers - Remove redundant dev_err()/dev_err_probe()
  2026-07-10 · Pan Chuang <hidden>
• COLD21d [PATCH v3] hwrng: core - Stop/start hwrng_fillfn() kthread before/after suspend-resume
  2026-07-03 · "Thomas Richard (TI)" <thomas.richard@bootlin.com>
• COLD21d [PATCH v1] hwrng: ks-sa: Fix runtime PM cleanup on registration failure
  2026-07-02 · Yuho Choi <hidden>
• DORMANTno replies [PATCH RESEND] hwrng: atmel - drop __maybe_unused from atmel_trng_pm_ops
  2026-06-30 · Thorsten Blum <thorsten.blum@linux.dev>
• COLD20d [PATCH v5 2/2] hwrng: starfive: rework clk/reset teardown order for JHB100
  2026-06-29 · lianfeng.ouyang <hidden>
• COLD20d REVIEWED: 3 (3M) [PATCH v5 1/2] dt-bindings: rng: starfive,jh7110-trng: add jhb100, drop jh8100
  2026-06-29 · lianfeng.ouyang <hidden>
• COLD15d [PATCH 31/32] treewide: convert rdmsrq() from a macro to an inline function
  2026-06-29 · Juergen Gross <jgross@suse.com>
• COLD15d [PATCH 23/32] hw_random/via-rng: Stop using 32-bit MSR interfaces
  2026-06-29 · Juergen Gross <jgross@suse.com>
• COLD38d [PATCH] hwrng: omap: disable runtime PM on resume failure
  2026-06-26 · Myeonghun Pak <hidden>
• COLD29d [PATCH] hwrng: omap: Fix probe error path cleanup
  2026-06-23 · Myeonghun Pak <hidden>
• COLD29d [PATCH] hwrng: xilinx-trng: propagate timeout before any data is read
  2026-06-23 · Pengpeng Hou <hidden>
• COLD42d [PATCH v5 2/2] hw_random: timeriomem-rng: add configurable read width and data mask
  2026-06-18 · Jad Keskes <hidden>
• COLD42d [PATCH v5 1/2] dt-bindings: rng: timeriomem_rng: add reg-io-width and mask properties
  2026-06-18 · Jad Keskes <hidden>
• COLD46d [PATCH v4 2/2] hw_random: timeriomem-rng: add configurable read width and data mask
  2026-06-17 · Jad Keskes <hidden>
• COLD46d [PATCH v4 1/2] dt-bindings: rng: timeriomem_rng: add reg-io-width and mask properties
  2026-06-17 · Jad Keskes <hidden>
• COLD47d [PATCH v3 2/2] hw_random: timeriomem-rng: add configurable read width and data mask
  2026-06-17 · Jad Keskes <hidden>
• COLD47d [PATCH v3 1/2] dt-bindings: rng: timeriomem_rng: add width and mask properties
  2026-06-17 · Jad Keskes <hidden>
• COLD29d [PATCH 4/7] hwrng: qcom - Move qcom-rng.c into drivers/char/hw_random/
  2026-06-15 · Eric Biggers <ebiggers@kernel.org>
• COLD47d [PATCH v2] hw_random: timeriomem-rng: add configurable read width and data mask
  2026-06-15 · Jad Keskes <hidden>
• COLD48d [PATCH] hw_random: timeriomem-rng: add configurable read width and data mask
  2026-06-15 · Jad Keskes <hidden>
• DORMANTno replies [PATCH v4] hwrng: virtio: clamp device-reported used.len at copy_data()
  2026-06-14 · Michael Bommarito <hidden>
• COLD52d Re: [PATCH 0/4] Xilinx TRNG fix and simplification
  2026-06-11 · Eric Biggers <ebiggers@kernel.org>
• COLD54d [PATCH v4 1/2] dt-bindings: rng: starfive,jh7110-trng: add jhb100, drop jh8100
  2026-06-09 · lianfeng.ouyang <hidden>

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.

• STALE80d REVIEWED: 1 (0M) [PATCH v2 4/4] hwrng: core - use sysfs_emit_at in rng_available_show
  2026-05-05 · Thorsten Blum <thorsten.blum@linux.dev> · 1 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.

• STALE152d [PATCH 2/2] hwrng: mtk - add support for hw access via SMCC
  2026-03-04 · Daniel Golle <daniel@makrotopia.org>
• COLD23d [PATCH 13/16] hwrng: omap: Enable on Renesas RZ/N1D
  2026-03-27 · "Miquel Raynal (Schneider Electric)" <miquel.raynal@bootlin.com>
• STALE123d [PATCH v2 2/2] hwrng: mtk - add support for hw access via SMCC
  2026-04-02 · Daniel Golle <daniel@makrotopia.org>
• STALE104d [PATCH v3 2/2] hwrng: mtk - add support for hw access via SMCC
  2026-04-19 · Daniel Golle <daniel@makrotopia.org>
• STALE90d [PATCH v4 3/3] hwrng: mtk - add support for hw access via SMCC
  2026-04-20 · Daniel Golle <daniel@makrotopia.org>
• DORMANTno replies [PATCH RFC] hwrng: core - Set hwrng_fillfn() kernel thread freezable
  2026-04-27 · "Thomas Richard (TI)" <thomas.richard@bootlin.com>
• STALE80d [PATCH v2 2/4] hwrng: core - use bool for wait parameter in rng_get_data
  2026-05-05 · Thorsten Blum <thorsten.blum@linux.dev>
• STALE80d [PATCH v2 3/4] hwrng: core - use MAX to simplify RNG_BUFFER_SIZE
  2026-05-05 · Thorsten Blum <thorsten.blum@linux.dev>
• COLD53d [PATCH 2/2] hwrng: hisi-trng - Move hisi-trng into drivers/char/hw_random/
  2026-05-30 · Eric Biggers <ebiggers@kernel.org>
• COLD52d [PATCH 4/4] hwrng: xilinx - Move xilinx-rng into drivers/char/hw_random/
  2026-05-31 · Eric Biggers <ebiggers@kernel.org>