Changes in Kconfig

76750765 - arch_numa: switch over to numa_memblks

Wed, 07 Aug 2024 06:41:08 +0000

arch_numa: switch over to numa_memblksUntil now arch_numa was directly translating firmware NUMA informationto memblock.Using numa_memblks as an intermediate step has a few advantages:* alignment with more battle tested x86 implementation* availability of NUMA emulation* maintaining node information for not yet populated memoryAdjust a few places in numa_memblks to compile with 32-bit phys_addr_t andreplace current functionality related to numa_add_memblk() and__node_distance() in arch_numa with the implementation based onnuma_memblks and add functions required by numa_emulation.[rppt@kernel.org: fix section mismatch] Link: https://lkml.kernel.org/r/ZrO6cExVz1He_yPn@kernel.org[rppt@kernel.org: PFN_PHYS() translation is unnecessary here] Link: https://lkml.kernel.org/r/Zs2T5wkSYO9MGcab@kernel.orgLink: https://lkml.kernel.org/r/20240807064110.1003856-25-rppt@kernel.orgSigned-off-by: Mike Rapoport (Microsoft) Tested-by: Zi Yan # for x86_64 and arm64Reviewed-by: Jonathan Cameron Tested-by: Jonathan Cameron [arm64 + CXL via QEMU]Acked-by: Dan Williams Acked-by: David Hildenbrand Cc: Alexander Gordeev Cc: Andreas Larsson Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Catalin Marinas Cc: Christophe Leroy Cc: Dave Hansen Cc: Davidlohr Bueso Cc: David S. Miller Cc: Greg Kroah-Hartman Cc: Heiko Carstens Cc: Huacai Chen Cc: Ingo Molnar Cc: Jiaxun Yang Cc: John Paul Adrian Glaubitz Cc: Jonathan Corbet Cc: Michael Ellerman Cc: Palmer Dabbelt Cc: Rafael J. Wysocki Cc: Rob Herring (Arm) Cc: Samuel Holland Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Vasily Gorbik Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux-6.15/drivers/base/Kconfig

8ad266d1 - driver core: Add CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT

Fri, 17 Mar 2023 20:51:33 +0000

driver core: Add CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUTAdd a build time equivalent of fw_devlink.sync_state=timeout so thatboard specific kernels could enable it and not have to deal with settingor cluttering the kernel commandline.Cc: Doug Anderson Signed-off-by: Saravana Kannan Reviewed-by: Douglas Anderson Link: https://lore.kernel.org/r/20230317205134.964098-1-saravanak@google.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

28f0c335 - devtmpfs: mount with noexec and nosuid

Wed, 22 Dec 2021 12:50:20 +0000

devtmpfs: mount with noexec and nosuiddevtmpfs is writable. Add the noexec and nosuid as default mount flagsto prevent code execution from /dev. The systems who don't use systemdand who rely on CONFIG_DEVTMPFS_MOUNT=y are the ones to be protected bythis patch. Other systems are fine with the udev solution.No sane program should be relying on executing from /dev. So this patchreduces the attack surface. It doesn't prevent any specific attack, butit reduces the possibility that someone can use /dev as a place to putexecutable code. Chrome OS has been carrying this patch for severalyears. It seems trivial and simple solution to improve the protection of/dev when CONFIG_DEVTMPFS_MOUNT=y.Original patch:https://lore.kernel.org/lkml/20121120215059.GA1859@www.outflux.net/Cc: ellyjones@chromium.orgCc: Kay Sievers Cc: Roland Eggner Co-developed-by: Muhammad Usama Anjum Signed-off-by: Kees Cook Signed-off-by: Muhammad Usama Anjum Link: https://lore.kernel.org/r/YcMfDOyrg647RCmd@debian-BULLSEYE-live-builder-AMD64Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

ae3c107c - numa: Move numa implementation to common code

Thu, 19 Nov 2020 00:38:26 +0000

numa: Move numa implementation to common codeARM64 numa implementation is generic enough that RISC-V can reuse thatimplementation with very minor cosmetic changes. This will help bothARM64 and RISC-V in terms of maintanace and feature improvementMove the numa implementation code to common directory so that both ISAscan reuse this. This doesn't introduce any function changes for ARM64.Signed-off-by: Atish Patra Acked-by: Jonathan Cameron Tested-by: Jonathan Cameron Acked-by: Catalin Marinas Signed-off-by: Palmer Dabbelt List of files: /linux-6.15/drivers/base/Kconfig

fb88c9a3 - drivers: base: Kconfig: fix spelling mistake "heterogenous" -> "heterogeneous"

Tue, 15 Dec 2020 14:54:40 +0000

drivers: base: Kconfig: fix spelling mistake "heterogenous" -> "heterogeneous"There is a spelling mistake in the Kconfig help text. Fix it.Signed-off-by: Colin Ian King Link: https://lore.kernel.org/r/20201215145440.204362-1-colin.king@canonical.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

7de3697e - Add auxiliary bus support

Thu, 03 Dec 2020 00:54:24 +0000

Add auxiliary bus supportAdd support for the Auxiliary Bus, auxiliary_device and auxiliary_driver.It enables drivers to create an auxiliary_device and bind anauxiliary_driver to it.The bus supports probe/remove shutdown and suspend/resume callbacks.Each auxiliary_device has a unique string based id; driver binds toan auxiliary_device based on this id through the bus.Co-developed-by: Kiran Patil Co-developed-by: Ranjani Sridharan Co-developed-by: Fred Oh Co-developed-by: Leon Romanovsky Signed-off-by: Kiran Patil Signed-off-by: Ranjani Sridharan Signed-off-by: Fred Oh Signed-off-by: Leon Romanovsky Signed-off-by: Dave Ertman Reviewed-by: Pierre-Louis Bossart Reviewed-by: Shiraz Saleem Reviewed-by: Parav Pandit Reviewed-by: Dan Williams Reviewed-by: Martin Habets Link: https://lore.kernel.org/r/20201113161859.1775473-2-david.m.ertman@intel.comSigned-off-by: Dan Williams Link: https://lore.kernel.org/r/160695681289.505290.8978295443574440604.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

bebe94b5 - drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS

Mon, 11 May 2020 13:14:33 +0000

drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTSThis makes it easier to enable all KUnit fragments.Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off.Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt inmenuconfig.Reviewed-by: David Gow Signed-off-by: Anders Roxell Signed-off-by: Shuah Khan List of files: /linux-6.15/drivers/base/Kconfig

35c57fc3 - kunit: building kunit as a module breaks allmodconfig

Fri, 10 Jan 2020 11:49:25 +0000

kunit: building kunit as a module breaks allmodconfigkunit tests that do not support module build should dependon KUNIT=y rather than just KUNIT in Kconfig, otherwisethey will trigger compilation errors for "make allmodconfig"builds.Fixes: 9fe124bf1b77 ("kunit: allow kunit to be loaded as a module")Reported-by: Stephen Rothwell Signed-off-by: Alan Maguire Signed-off-by: Shuah Khan List of files: /linux-6.15/drivers/base/Kconfig

14e08757 - PM / QoS: Initial kunit test

Tue, 26 Nov 2019 15:17:10 +0000

PM / QoS: Initial kunit testThe pm_qos family of APIs are used in relatively difficult to reproducescenarios such as thermal throttling so they benefit from unit testing.Start by adding basic tests from the the freq_qos APIs. It includestests for issues that were brought up on mailing lists:https://patchwork.kernel.org/patch/11252425/#23017005https://patchwork.kernel.org/patch/11253421/Signed-off-by: Leonard Crestez Reviewed-by: Matthias Kaehlcke Signed-off-by: Rafael J. Wysocki List of files: /linux-6.15/drivers/base/Kconfig

c181831f - base: arch_topology: update Kconfig help description

Thu, 27 Jun 2019 19:53:01 +0000

base: arch_topology: update Kconfig help descriptionCommit 5d777b185f6d ("arch_topology: Make cpu_capacity sysfs node as read-only")made cpu_capacity sysfs node read-only. Update the GENERIC_ARCH_TOPOLOGYKconfig help section to reflect the same.Cc: Greg Kroah-Hartman Signed-off-by: Sudeep Holla Signed-off-by: Paul Walmsley List of files: /linux-6.15/drivers/base/Kconfig

5dd50aae - Make anon_inodes unconditional

Mon, 05 Nov 2018 17:40:31 +0000

Make anon_inodes unconditionalMake the anon_inodes facility unconditional so that it can be used by coreVFS code and pidfd code.Signed-off-by: David Howells Signed-off-by: Al Viro [christian@brauner.io: adapt commit message to mention pidfds]Signed-off-by: Christian Brauner List of files: /linux-6.15/drivers/base/Kconfig

e1cf33aa - node: Add heterogenous memory access attributes

Mon, 11 Mar 2019 20:56:01 +0000

node: Add heterogenous memory access attributesHeterogeneous memory systems provide memory nodes with different latencyand bandwidth performance attributes. Provide a new kernel interfacefor subsystems to register the attributes under the memory targetnode's initiator access class. If the system provides this information,applications may query these attributes when deciding which node torequest memory.The following example shows the new sysfs hierarchy for a node exportingperformance attributes: # tree -P "read*|write*"/sys/devices/system/node/nodeY/accessZ/initiators/ /sys/devices/system/node/nodeY/accessZ/initiators/ |-- read_bandwidth |-- read_latency |-- write_bandwidth `-- write_latencyThe bandwidth is exported as MB/s and latency is reported innanoseconds. The values are taken from the platform as reported by themanufacturer.Memory accesses from an initiator node that is not one of the memory'saccess "Z" initiator nodes linked in the same directory may observedifferent performance than reported here. When a subsystem makes useof this interface, initiators of a different access number may not havethe same performance relative to initiators in other access numbers, oromitted from the any access class' initiators.Descriptions for memory access initiator performance access attributesare added to sysfs stable documentation.Acked-by: Jonathan Cameron Tested-by: Jonathan Cameron Signed-off-by: Keith Busch Reviewed-by: Rafael J. Wysocki Tested-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

1be01d4a - driver: base: Disable CONFIG_UEVENT_HELPER by default

Thu, 14 Mar 2019 11:13:50 +0000

driver: base: Disable CONFIG_UEVENT_HELPER by defaultSince commit 7934779a69f1184f ("Driver-Core: disable /sbin/hotplug bydefault"), the help text for the /sbin/hotplug fork-bomb says"This should not be used today [...] creates a high system load, or[...] out-of-memory situations during bootup". The rationale for thiswas that no recent mainstream system used this anymore (in 2010!).A few years later, the complete uevent helper support was made optionalin commit 86d56134f1b67d0c ("kobject: Make support for uevent_helperoptional."). However, if was still left enabled by default, to supportancient userland.Time passed by, and nothing should use this anymore, so it can bedisabled by default.Signed-off-by: Geert Uytterhoeven Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

dadd2299 - Make anon_inodes unconditional

Mon, 05 Nov 2018 17:40:31 +0000

Make anon_inodes unconditionalMake the anon_inodes facility unconditional so that it can be used by coreVFS code.Signed-off-by: David Howells Signed-off-by: Al Viro List of files: /linux-6.15/drivers/base/Kconfig

ddb26d8e - dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig

Wed, 13 Feb 2019 18:19:08 +0000

dma-mapping: move CONFIG_DMA_CMA to kernel/dma/KconfigThis is where all the related code already lives.Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

06bfd3c8 - firmware_loader: move kconfig FW_LOADER entries to its own file

Thu, 10 May 2018 20:08:43 +0000

firmware_loader: move kconfig FW_LOADER entries to its own fileThis will make it easier to track and easier to understandwhat components and features are part of the FW_LOADER. Thereare some components related to firmware which have *nothing* todo with the FW_LOADER, souch as PREVENT_FIRMWARE_BUILD.Reviewed-by: Kees Cook Signed-off-by: Luis R. Rodriguez Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

367d0982 - firmware_loader: replace ---help--- with help

Thu, 10 May 2018 20:08:42 +0000

firmware_loader: replace ---help--- with helpAs per checkpatch using help is preferred over ---help---.Signed-off-by: Luis R. Rodriguez Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

02c39930 - firmware_loader: enhance Kconfig documentation over FW_LOADER

Thu, 10 May 2018 20:08:41 +0000

firmware_loader: enhance Kconfig documentation over FW_LOADERIf you try to read FW_LOADER today it speaks of old riddles andunless you have been following development closely you will losetrack of what is what. Even the documentation for PREVENT_FIRMWARE_BUILDis a bit fuzzy and how it fits into this big picture.Give the FW_LOADER kconfig documentation some love with more up todate developments and recommendations. While at it, wrap the FW_LOADERcode into its own menu to compartmentalize and make it clearer whichcomponents really are part of the FW_LOADER. This should also makeit easier to later move these kconfig entries into the firmware_loader/directory later.This also now recommends using firmwared [0] for folks left needing auevent handler in userspace for the sysfs firmware fallback mechanisgiven udev's uevent firmware mechanism was ripped out a while ago.[0] https://github.com/teg/firmwaredReviewed-by: Kees Cook Signed-off-by: Luis R. Rodriguez Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

7f55c733 - firmware: Drop FIRMWARE_IN_KERNEL Kconfig option

Wed, 24 Jan 2018 02:06:31 +0000

firmware: Drop FIRMWARE_IN_KERNEL Kconfig optionIt doesn't actually do anything. Merge its help text intoEXTRA_FIRMWARE.Fixes: 5620a0d1aacd ("firmware: delete in-kernel firmware")Fixes: 0946b2fb38fd ("firmware: cleanup FIRMWARE_IN_KERNEL message")Signed-off-by: Benjamin Gilbert Signed-off-by: Robin H. Johnson Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/base/Kconfig

87590ce6 - sysfs/cpu: Add vulnerability folder

Sun, 07 Jan 2018 21:48:00 +0000

sysfs/cpu: Add vulnerability folderAs the meltdown/spectre problem affects several CPU architectures, it makessense to have common way to express whether a system is affected by aparticular vulnerability or not. If affected the way to express themitigation should be common as well.Create /sys/devices/system/cpu/vulnerabilities folder and files formeltdown, spectre_v1 and spectre_v2.Allow architectures to override the show function.Signed-off-by: Thomas Gleixner Reviewed-by: Greg Kroah-Hartman Reviewed-by: Konrad Rzeszutek Wilk Cc: Peter Zijlstra Cc: Will Deacon Cc: Dave Hansen Cc: Linus Torvalds Cc: Borislav Petkov Cc: David Woodhouse Link: https://lkml.kernel.org/r/20180107214913.096657732@linutronix.de List of files: /linux-6.15/drivers/base/Kconfig