Changes in generic_defconfig

73d4bb58 - mips: defconfig: drop RT_GROUP_SCHED=y from generic/db1xxx/eyeq5

Thu, 30 May 2024 11:19:51 +0000

mips: defconfig: drop RT_GROUP_SCHED=y from generic/db1xxx/eyeq5For cgroup v1, if turned on, and there's any cgroup in the "cpu" hierarchy itneeds an RT budget assigned, otherwise the processes in it will not be able toget RT at all. The problem with RT group scheduling is that it requires thebudget assigned but there's no way we could assign a default budget, since thevalues to assign are both upper and lower time limits, are absolute, and need tobe sum up to < 1 for each individal cgroup. That means we cannot really come upwith values that would work by default in the general case.[1]For cgroup v2, it's almost unusable as well. If it turned on, the cpu controllercan only be enabled when all RT processes are in the root cgroup. But it willlose the benefits of cgroup v2 if all RT process were placed in the same cgroup.Red Hat, Gentoo, Arch Linux and Debian all disable it. systemd also doesn'tsupport it.[2][1]: https://bugzilla.redhat.com/show_bug.cgi?id=1229700[2]: https://github.com/systemd/systemd/issues/13781#issuecomment-549164383Signed-off-by: Celeste Liu Signed-off-by: Thomas Bogendoerfer List of files: /linux-6.15/arch/mips/configs/generic_defconfig

ef815d2c - treewide: drop CONFIG_EMBEDDED

Wed, 16 Aug 2023 05:50:10 +0000

treewide: drop CONFIG_EMBEDDEDThere is only one Kconfig user of CONFIG_EMBEDDED and it can be switchedto EXPERT or "if !ARCH_MULTIPLATFORM" (suggested by Arnd).Link: https://lkml.kernel.org/r/20230816055010.31534-1-rdunlap@infradead.orgSigned-off-by: Randy Dunlap Acked-by: Geert Uytterhoeven Acked-by: Arnd Bergmann Acked-by: Palmer Dabbelt [RISC-V]Acked-by: Greg Ungerer Acked-by: Jason A. Donenfeld Acked-by: Michael Ellerman [powerpc]Cc: Russell King Cc: Vineet Gupta Cc: Brian Cain Cc: Michal Simek Cc: Thomas Bogendoerfer Cc: Dinh Nguyen Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Cc: Nicholas Piggin Cc: Christophe Leroy Cc: Paul Walmsley Cc: Albert Ou Cc: Yoshinori Sato Cc: Rich Felker Cc: John Paul Adrian Glaubitz Cc: Max Filippov Cc: Josh Triplett Cc: Masahiro Yamada Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/mips/configs/generic_defconfig

e55b9f96 - mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol

Mon, 26 Sep 2022 13:57:04 +0000

mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbolSince 2d1c498072de ("mm: memcontrol: make swap tracking an integral partof memory control"), CONFIG_MEMCG_SWAP hasn't been a user-visible configoption anymore, it just means CONFIG_MEMCG && CONFIG_SWAP.Update the sites accordingly and drop the symbol.[ While touching the docs, remove two references to CONFIG_MEMCG_KMEM, which hasn't been a user-visible symbol for over half a decade. ]Link: https://lkml.kernel.org/r/20220926135704.400818-5-hannes@cmpxchg.orgSigned-off-by: Johannes Weiner Acked-by: Shakeel Butt Cc: Hugh Dickins Cc: Michal Hocko Cc: Roman Gushchin Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/mips/configs/generic_defconfig

64367f2e - treewide: defconfig: address renamed CONFIG_DEBUG_INFO=y

Thu, 11 Aug 2022 11:44:34 +0000

treewide: defconfig: address renamed CONFIG_DEBUG_INFO=yCONFIG_DEBUG_INFO is now implicitly selected if one picks one of theexplicit options that could be DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT,DEBUG_INFO_DWARF4, DEBUG_INFO_DWARF5.This was actually not what I had in mind when I suggested making it a'choice' statement, but it's too late to change again now, and the Kconfiglogic is more sensible in the new form.Change any defconfig file that had CONFIG_DEBUG_INFO enabled but did notpick DWARF4 or DWARF5 explicitly to now pick the toolchain default.Link: https://lkml.kernel.org/r/20220811114609.2097335-1-arnd@kernel.orgFixes: f9b3cd245784 ("Kconfig.debug: make DEBUG_INFO selectable from a choice")Signed-off-by: Arnd Bergmann Reviewed-by: Kees Cook Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Vineet Gupta Cc: Michal Simek Cc: Thomas Bogendoerfer Cc: Dinh Nguyen Cc: Yoshinori Sato Cc: Rich Felker Cc: Richard Weinberger Cc: Anton Ivanov Cc: Johannes Berg Cc: Chris Zankel Cc: Max Filippov Cc: Arnd Bergmann Signed-off-by: Andrew Morton List of files: /linux-6.15/arch/mips/configs/generic_defconfig

3e3d1dfd - MIPS: generic: Enable CONFIG_JUMP_LABEL

Fri, 05 Apr 2019 22:50:37 +0000

MIPS: generic: Enable CONFIG_JUMP_LABELEnable CONFIG_JUMP_LABEL for generic configs in order to better optimizeat runtime and get better test coverage for our jump label support.Signed-off-by: Paul Burton Cc: linux-mips@vger.kernel.org List of files: /linux-6.15/arch/mips/configs/generic_defconfig

643fa961 - fscrypt: remove filesystem specific build config option

Wed, 12 Dec 2018 09:50:12 +0000

fscrypt: remove filesystem specific build config optionIn order to have a common code base for fscrypt "post read" processingfor all filesystems which support encryption, this commit removesfilesystem specific build config option (e.g. CONFIG_EXT4_FS_ENCRYPTION)and replaces it with a build option (i.e. CONFIG_FS_ENCRYPTION) whosevalue affects all the filesystems making use of fscrypt.Reviewed-by: Eric Biggers Signed-off-by: Chandan Rajendra Signed-off-by: Eric Biggers List of files: /linux-6.15/arch/mips/configs/generic_defconfig

af84c003 - MIPS: Regenerate defconfigs

Wed, 21 Nov 2018 00:58:31 +0000

MIPS: Regenerate defconfigsA couple of patches have come up recently to remove particular instancesof obsolete Kconfig symbols from defconfigs. Rather than doing thispiecemeal, simply regenerate them all.Signed-off-by: Paul Burton References: https://patchwork.linux-mips.org/patch/19635/References: https://patchwork.linux-mips.org/patch/21156/Patchwork: https://patchwork.linux-mips.org/patch/21184/Cc: Anders Roxell Cc: Krzysztof Kozlowski Cc: linux-mips@linux-mips.org List of files: /linux-6.15/arch/mips/configs/generic_defconfig

ca75e2fc - MIPS: generic: Remove input symbols from defconfig

Thu, 02 Aug 2018 16:23:30 +0000

MIPS: generic: Remove input symbols from defconfiggeneric_defconfig explicitly disables CONFIG_INPUT_MOUSEDEV,CONFIG_INPUT_KEYBOARD & CONFIG_INPUT_MOUSE which results in warningswhen merging board config fragments if any of them require theseoptions. This is the case for the ranchu board, which means we've hadthe following warning when configuring for generic platform targetssince commit f2d0b0d5c171 ("MIPS: ranchu: Add Ranchu as a newgeneric-based board"): $ make ARCH=mips 32r2el_defconfig Using ./arch/mips/configs/generic_defconfig as base Merging arch/mips/configs/generic/32r2.config Merging arch/mips/configs/generic/el.config Merging ./arch/mips/configs/generic/board-sead-3.config Merging ./arch/mips/configs/generic/board-ranchu.config Value of CONFIG_INPUT_KEYBOARD is redefined by fragment ./arch/mips/configs/generic/board-ranchu.config: Previous value: # CONFIG_INPUT_KEYBOARD is not set New value: CONFIG_INPUT_KEYBOARD=y Merging ./arch/mips/configs/generic/board-ni169445.config Merging ./arch/mips/configs/generic/board-boston.config Merging ./arch/mips/configs/generic/board-ocelot.config Merging ./arch/mips/configs/generic/board-xilfpga.config scripts/kconfig/conf --olddefconfig Kconfig # # configuration written to .config #Resolve this by removing mention of the CONFIG_INPUT_* Kconfig symbolsfrom generic_defconfig, allowing them to take their default values &allowing board config fragments to enable them without warnings.This may be problematic if CONFIG_ARCH_MIGHT_HAVE_PC_SERIO is everenabled for CONFIG_MIPS_GENERIC=y configurations, but for now that isn'tthe case so we can worry about that if & when it happens.Signed-off-by: Paul Burton Patchwork: https://patchwork.linux-mips.org/patch/20109/Cc: James Hogan Cc: Ralf Baechle Cc: linux-mips@linux-mips.org List of files: /linux-6.15/arch/mips/configs/generic_defconfig

c2c03291 - MIPS: generic: Bump default NR_CPUS to 16

Mon, 07 Aug 2017 23:01:18 +0000

MIPS: generic: Bump default NR_CPUS to 16In generic_defconfig set CONFIG_NR_CPUS to 16 rather than 2, which is arather too low limit for many modern day MIPS systems.Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/16949/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/configs/generic_defconfig

f8bfffc1 - MIPS: generic: Don't explicitly disable CONFIG_USB_SUPPORT

Mon, 07 Aug 2017 23:01:17 +0000

MIPS: generic: Don't explicitly disable CONFIG_USB_SUPPORTLeave CONFIG_USB_SUPPORT at its default, allowing board config fragmentsto make use of USB drivers without needing to override it & triggerwarnings from merge_config.sh.Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/16948/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/configs/generic_defconfig

f110cc4f - MIPS: generic: Enable Root FS on NFS in generic_defconfig

Fri, 31 Mar 2017 15:21:24 +0000

MIPS: generic: Enable Root FS on NFS in generic_defconfigThe generic_defconfig is used for platforms like SEAD3 which do notusually have fixed storage available, therefore NFS is the preferredlocation of the RFS.When the upstream kernel defconfig is built & tested on platforms suchas SEAD3 this leads to essentially false failures when the RFS fails tomount.There is little harm in having this feature enabled by default, soenable it in the defconfig. Kernel autoconfiguration & DHCP must also beselected to allow RFS on NFS.Signed-off-by: Matt Redfearn Cc: James Hogan Cc: Paul Burton Cc: linux-mips@linux-mips.orgCc: linux-kernel@vger.kernel.orgPatchwork: https://patchwork.linux-mips.org/patch/15853/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/configs/generic_defconfig

eed0eabd - MIPS: generic: Introduce generic DT-based board support

Wed, 05 Oct 2016 17:18:20 +0000

MIPS: generic: Introduce generic DT-based board supportIntroduce a "generic" platform, which aims to be board-agnostic bymaking use of device trees passed by the boot protocol defined in theMIPS UHI (Universal Hosting Interface) specification. Provision is madefor supporting boards which use a legacy boot protocol that can't bechanged, but adding support for such boards or any others is left tofollowon patches.Right now the built kernels expect to be loaded to 0x80100000, ie. inkseg0. This is fine for the vast majority of MIPS platforms, butnevertheless it would be good to remove this limitation in the future bymapping the kernel via the TLB such that it can be loaded anywhere & mapitself appropriately.Configuration is handled by dynamically generating configs usingscripts/kconfig/merge_config.sh, somewhat similar to the way powerpcmakes use of it. This allows for variations upon the configuration, eg.differing architecture revisions or subsets of driver support fordiffering boards, to be handled without having a large number ofdefconfig files.Signed-off-by: Paul Burton Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/14353/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/configs/generic_defconfig