Changes in Kconfig

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 10:26:49 +0200

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/drivers/dax/Kconfig

bb0bc49a1cef574646eb25d74709c5ff200903a8 - Merge tag 'libnvdimm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Tue, 21 Apr 2026 23:12:01 +0200

Merge tag 'libnvdimm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmPull dax updates from Ira Weiny: "The series adds DAX support required for the upcoming fuse/famfs file system.[1] The support here is required because famfs is backed by devdax rather than pmem. This all lays the groundwork for using shared memory as a file system"Link: https://lore.kernel.org/all/0100019d43e5f632-f5862a3e-361c-4b54-a9a6-96c242a8f17a-000000@email.amazonses.com/ [1]* tag 'libnvdimm-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: dax/fsdev: fix uninitialized kaddr in fsdev_dax_zero_page_range() dax: export dax_dev_get() dax: Add fs_dax_get() func to prepare dax for fs-dax usage dax: Add dax_set_ops() for setting dax_operations at bind time dax: Add dax_operations for use by fs-dax on fsdev dax dax: Save the kva from memremap dax: add fsdev.c driver for fs-dax on character dax dax: Factor out dax_folio_reset_order() helper dax: move dax_pgoff_to_phys from [drivers/dax/] device.c to bus.c List of files: /linux/drivers/dax/Kconfig

12bffaef28820e0b94c644c75708195c61af78f7 - Merge tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Sat, 18 Apr 2026 00:52:58 +0200

Merge tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlPull CXL (Compute Express Link) updates from Dave Jiang: "The significant change of interest is the handling of soft reserved memory conflict between CXL and HMEM. In essence CXL will be the first to claim the soft reserved memory ranges that belongs to CXL and attempt to enumerate them with best effort. If CXL is not able to enumerate the ranges it will punt them to HMEM. There are also MAINTAINERS email changes from Dan Williams and Jonathan Cameron"* tag 'cxl-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (37 commits) MAINTAINERS: Update Jonathan Cameron's email address cxl/hdm: Add support for 32 switch decoders MAINTAINERS: Update address for Dan Williams tools/testing/cxl: Enable replay of user regions as auto regions cxl/region: Add a region sysfs interface for region lock status tools/testing/cxl: Test dax_hmem takeover of CXL regions tools/testing/cxl: Simulate auto-assembly failure dax/hmem: Parent dax_hmem devices dax/hmem: Fix singleton confusion between dax_hmem_work and hmem devices dax/hmem: Reduce visibility of dax_cxl coordination symbols cxl/region: Constify cxl_region_resource_contains() cxl/region: Limit visibility of cxl_region_contains_resource() dax/cxl: Fix HMEM dependencies cxl/region: Fix use-after-free from auto assembly failure cxl/core: Check existence of cxl_memdev_state in poison test cxl/core: use cleanup.h for devm_cxl_add_dax_region cxl/core/region: move dax region device logic into region_dax.c cxl/core/region: move pmem region driver logic into region_pmem.c dax/hmem, cxl: Defer and resolve Soft Reserved ownership cxl/region: Add helper to check Soft Reserved containment by CXL regions ... List of files: /linux/drivers/dax/Kconfig

303d32843b831ba86c28aea188db95da65d88f31 - Merge branch 'for-7.1/dax-hmem' into cxl-for-next

Fri, 03 Apr 2026 21:21:27 +0200

Merge branch 'for-7.1/dax-hmem' into cxl-for-nextThe series addresses conflicts between HMEM and CXL when handling SoftReserved memory ranges. CXL will try best effort in claiming the SoftReserved memory region that are CXL regions. If fails, it will puntback to HMEM.tools/testing/cxl: Test dax_hmem takeover of CXL regionstools/testing/cxl: Simulate auto-assembly failuredax/hmem: Parent dax_hmem devicesdax/hmem: Fix singleton confusion between dax_hmem_work and hmem devicesdax/hmem: Reduce visibility of dax_cxl coordination symbolscxl/region: Constify cxl_region_resource_contains()cxl/region: Limit visibility of cxl_region_contains_resource()dax/cxl: Fix HMEM dependenciescxl/region: Fix use-after-free from auto assembly failuredax/hmem, cxl: Defer and resolve Soft Reserved ownershipcxl/region: Add helper to check Soft Reserved containment by CXL regionsdax: Track all dax_region allocations under a global resource treedax/cxl, hmem: Initialize hmem early and defer dax_cxl bindingdax/hmem: Gate Soft Reserved deferral on DEV_DAX_CXLdax/hmem: Request cxl_acpi and cxl_pci before walking Soft Reserved rangesdax/hmem: Factor HMEM registration into __hmem_register_device()dax/bus: Use dax_region_put() in alloc_dax_region() error path List of files: /linux/drivers/dax/Kconfig

1eaef15b2349087d9ce583b9153970d5cf5c5329 - dax/cxl: Fix HMEM dependencies

Fri, 27 Mar 2026 06:28:14 +0100

dax/cxl: Fix HMEM dependenciesThe expectation is that DEV_DAX_HMEM=y should be disallowed if any ofCXL_ACPI, or CXL_PCI are set =m. Also DEV_DAX_CXL=y should be disallowed ifDEV_DAX_HMEM=m. Use "$config || !$config" syntax for each dependency.Otherwise, the invalid DEV_DAX_HMEM=m && DEV_DAX_CXL=y configuration isallowed.Lastly, dax_hmem depends on the availability of thecxl_region_contains_resource() symbol published by the cxl_core.ko module.So, also prevent DEV_DAX_HMEM from being built-in when the cxl_core moduleis not built-in.Signed-off-by: Dan Williams Reviewed-by: Ira Weiny Reviewed-by: Alison Schofield Reviewed-by: Dave Jiang Link: https://patch.msgid.link/20260327052821.440749-3-dan.j.williams@intel.comSigned-off-by: Dave Jiang List of files: /linux/drivers/dax/Kconfig

d5406bd458b0ac10b1301a4d5801d85c8f648637 - dax: add fsdev.c driver for fs-dax on character dax

Fri, 27 Mar 2026 22:04:35 +0100

dax: add fsdev.c driver for fs-dax on character daxThe new fsdev driver provides pages/folios initialized compatibly withfsdax - normal rather than devdax-style refcounting, and starting outwith order-0 folios.When fsdev binds to a daxdev, it is usually (always?) switching from thedevdax mode (device.c), which pre-initializes compound folios accordingto its alignment. Fsdev uses fsdev_clear_folio_state() to switch thefolios into a fsdax-compatible state.A side effect of this is that raw mmap doesn't (can't?) work on an fsdevdax instance. Accordingly, The fsdev driver does not provide raw mmap -devices must be put in 'devdax' mode (drivers/dax/device.c) to get rawmmap capability.In this commit is just the framework, which remaps pages/folios compatiblywith fsdax.Enabling dax changes:- bus.h: add DAXDRV_FSDEV_TYPE driver type- bus.c: allow DAXDRV_FSDEV_TYPE drivers to bind to daxdevs- dax.h: prototype inode_dax(), which fsdev needsSuggested-by: Dan Williams Suggested-by: Gregory Price Reviewed-by: Jonathan Cameron Signed-off-by: John Groves Link: https://patch.msgid.link/0100019d311cf904-419e9526-bdaf-4daa-97f1-5060b31a5c9f-000000@email.amazonses.comSigned-off-by: Ira Weiny List of files: /linux/drivers/dax/Kconfig

7b4bcaadfe00e2447c84378291e854ea87a2a41c - dax/hmem: Request cxl_acpi and cxl_pci before walking Soft Reserved ranges

Sun, 22 Mar 2026 20:53:36 +0100

dax/hmem: Request cxl_acpi and cxl_pci before walking Soft Reserved rangesEnsure cxl_acpi has published CXL Window resources before HMEM walks SoftReserved ranges.Replace MODULE_SOFTDEP("pre: cxl_acpi") with an explicit, synchronousrequest_module("cxl_acpi"). MODULE_SOFTDEP() only guarantees eventualloading, it does not enforce that the dependency has finished initbefore the current module runs. This can cause HMEM to start beforecxl_acpi has populated the resource tree, breaking detection of overlapsbetween Soft Reserved and CXL Windows.Also, request cxl_pci before HMEM walks Soft Reserved ranges. Unlikecxl_acpi, cxl_pci attach is asynchronous and creates dependent devicesthat trigger further module loads. Asynchronous probe flushing(wait_for_device_probe()) is added later in the series in a deferredcontext before HMEM makes ownership decisions for Soft Reserved ranges.Add an additional explicit Kconfig ordering so that CXL_ACPI and CXL_PCImust be initialized before DEV_DAX_HMEM. This prevents HMEM from consumingSoft Reserved ranges before CXL drivers have had a chance to claim them.Signed-off-by: Smita Koralahalli Reviewed-by: Dave Jiang Reviewed-by: Jonathan Cameron Reviewed-by: Alison Schofield Tested-by: Tomasz Wolski Link: https://patch.msgid.link/20260322195343.206900-4-Smita.KoralahalliChannabasappa@amd.comSigned-off-by: Dan Williams Signed-off-by: Dave Jiang List of files: /linux/drivers/dax/Kconfig

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 10:29:14 +0100

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/drivers/dax/Kconfig

25768de50b1f2dbb6ea44bd5148a87fe2c9c3688 - Merge branch 'next' into for-linus

Tue, 21 Jan 2025 06:37:39 +0100

Merge branch 'next' into for-linusPrepare input updates for 6.14 merge window. List of files: /linux/drivers/dax/Kconfig

6d4a0f4ea72319c9a37c1a7191695467006dd272 - Merge tag 'v6.13-rc3' into next

Tue, 17 Dec 2024 18:40:45 +0100

Merge tag 'v6.13-rc3' into nextSync up with the mainline. List of files: /linux/drivers/dax/Kconfig

77b679453d3364688ff3e5153c0be5b2b52672b7 - Merge tag 'v6.12-rc3' into perf-tools-next

Mon, 14 Oct 2024 19:45:28 +0200

Merge tag 'v6.12-rc3' into perf-tools-nextTo get the fixes in the current perf-tools tree.Signed-off-by: Namhyung Kim List of files: /linux/drivers/dax/Kconfig

3fd6c59042dbba50391e30862beac979491145fe - Merge tag 'v6.12-rc1' into clk-meson-next

Mon, 30 Sep 2024 11:28:07 +0200

Merge tag 'v6.12-rc1' into clk-meson-nextLinux 6.12-rc1 List of files: /linux/drivers/dax/Kconfig

a0efa2f362a69e47b9d8b48f770ef3a0249a7911 - Merge net-next/main to resolve conflicts

Wed, 09 Oct 2024 08:59:14 +0200

Merge net-next/main to resolve conflictsThe wireless-next tree was based on something older, and thereare now conflicts between -rc2 and work here. Merge net-next,which has enough of -rc2 for the conflicts to happen, resolvingthem in the process.Signed-off-by: Johannes Berg List of files: /linux/drivers/dax/Kconfig

b88132ceb3faccdd785809df75f9d490ebaab459 - Merge drm/drm-next into drm-xe-next

Fri, 04 Oct 2024 11:29:21 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to resolve a conflict with core locally.Signed-off-by: Thomas Hellström List of files: /linux/drivers/dax/Kconfig

2dd0ef5d951e9b565ddb324fe26c531b6a40bf82 - Merge drm/drm-next into drm-misc-next

Mon, 30 Sep 2024 10:50:54 +0200

Merge drm/drm-next into drm-misc-nextGet drm-misc-next to up v6.12-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/drivers/dax/Kconfig

e0568571258d096f0277c74185bcbfc9cf21bccb - Merge drm/drm-next into drm-intel-next

Mon, 30 Sep 2024 10:49:10 +0200

Merge drm/drm-next into drm-intel-nextSync to v6.12-rc1.Signed-off-by: Jani Nikula List of files: /linux/drivers/dax/Kconfig

f33e46a0c6bddd341d0989484a2546bba7ac4a3c - Merge branch 'for-6.13/wacom' into for-linus

Mon, 18 Nov 2024 21:29:33 +0100

Merge branch 'for-6.13/wacom' into for-linus- Sanitization of BTN_TOOL_RUBBER handling (Jason Gerecke) List of files: /linux/drivers/dax/Kconfig

c8d430db8eec7d4fd13a6bea27b7086a54eda6da - Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

Sun, 06 Oct 2024 09:59:22 +0200

Merge tag 'kvmarm-fixes-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEADKVM/arm64 fixes for 6.12, take #1- Fix pKVM error path on init, making sure we do not change critical system registers as we're about to fail- Make sure that the host's vector length is at capped by a value common to all CPUs- Fix kvm_has_feat*() handling of "negative" features, as the current code is pretty broken- Promote Joey to the status of official reviewer, while James steps down -- hopefully only temporarly List of files: /linux/drivers/dax/Kconfig

0c436dfe5c25d0931b164b944165259f95e5281f - Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Wed, 02 Oct 2024 21:29:16 +0200

Merge tag 'asoc-fix-v6.12-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.12A bunch of fixes here that came in during the merge window and the firstweek of release, plus some new quirks and device IDs. There's nothingmajor here, it's a bit bigger than it might've been due to there beingno fixes sent during the merge window due to your vacation. List of files: /linux/drivers/dax/Kconfig

2cd86f02c017bf9733e5cd891381b7d40f6f37ad - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Tue, 01 Oct 2024 18:09:41 +0200

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesRequired for a panthor fix that broke whenFOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.Signed-off-by: Maarten Lankhorst List of files: /linux/drivers/dax/Kconfig