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Nick Desaulniers 766ce14553 ANDROID: build.config: set NDK_TRIPLE
In order to support CONFIG_UAPI_HEADER_TEST=y with a bionic sysroot
using prebuilt bionic from the NDK, we need to set a different target
triple for USERCFLAGS than what's used when cross compiling the kernel
(so that the correct headers and libc.{a|so} are found+used).

Bug: 190019968
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Ib3e60c41b862cda9f79ff8d2c812aaa8bfb571af
2022-04-05 14:09:03 -07:00
android Revert "ANDROID: GKI: enable test_stackinit kernel module" 2022-02-01 20:33:22 +00:00
arch Merge 7403e6d826 ("Merge tag 'vfio-v5.18-rc1' of https://github.com/awilliam/linux-vfio") into android-mainline 2022-04-05 14:27:38 +02:00
block Merge 6b1f86f8e9 ("Merge tag 'folio-5.18b' of git://git.infradead.org/users/willy/pagecache") into android-mainline 2022-04-03 12:27:40 +02:00
certs Merge 5e8919170a ("Merge tag 'edac_updates_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras") into android-mainline 2022-03-24 14:24:39 +01:00
crypto Merge 93e220a62d ("Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6") into android-mainline 2022-03-26 10:45:28 +01:00
Documentation FROMGIT: kbuild: Add environment variables for userprogs flags 2022-04-05 14:09:03 -07:00
drivers Merge 7403e6d826 ("Merge tag 'vfio-v5.18-rc1' of https://github.com/awilliam/linux-vfio") into android-mainline 2022-04-05 14:27:38 +02:00
fs Merge efee6c7929 ("Merge tag 'tomoyo-pr-20220322' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1") into android-mainline 2022-04-05 11:14:37 +02:00
include FROMLIST: net, uapi: remove inclusion of arpa/inet.h 2022-04-05 14:09:03 -07:00
init FROMGIT: kbuild: Add environment variables for userprogs flags 2022-04-05 14:09:03 -07:00
ipc fs: allocate inode by using alloc_inode_sb() 2022-03-22 15:57:03 -07:00
kernel Merge 1ebdbeb03e ("Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm") into android-mainline 2022-04-05 11:15:22 +02:00
lib asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm Merge 1ebdbeb03e ("Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm") into android-mainline 2022-04-05 11:15:22 +02:00
net Merge ed4643521e ("Merge tag 'arm-dt-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") into android-mainline 2022-04-05 08:12:56 +02:00
samples Tracing updates for 5.18: 2022-03-23 11:40:25 -07:00
scripts Merge efee6c7929 ("Merge tag 'tomoyo-pr-20220322' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1") into android-mainline 2022-04-05 11:14:37 +02:00
security Merge efee6c7929 ("Merge tag 'tomoyo-pr-20220322' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1") into android-mainline 2022-04-05 11:14:37 +02:00
sound Merge efee6c7929 ("Merge tag 'tomoyo-pr-20220322' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1") into android-mainline 2022-04-05 11:14:37 +02:00
tools Merge 1ebdbeb03e ("Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm") into android-mainline 2022-04-05 11:15:22 +02:00
usr FROMGIT: kbuild: add --target to correctly cross-compile UAPI headers with Clang 2022-04-05 14:09:03 -07:00
virt KVM: compat: riscv: Prevent KVM_COMPAT from being selected 2022-03-11 19:02:15 +05:30
.clang-format genirq/msi: Make interrupt allocation less convoluted 2021-12-16 22:22:20 +01:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap MAINTAINERS: Update Jisheng's email address 2022-03-08 17:30:32 +01:00
BUILD.bazel ANDROID: kleaf: build/kleaf -> build/kernel/kleaf 2022-02-04 21:58:34 +00:00
build.config.aarch64 ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
build.config.allmodconfig ANDROID: disable SAMPLES and BPFILTER for allmodconfigs 2022-04-05 14:09:03 -07:00
build.config.allmodconfig.aarch64
build.config.allmodconfig.arm
build.config.allmodconfig.x86_64
build.config.amlogic
build.config.arm ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
build.config.common ANDROID: build/build-tools -> build/kernel/build-tools. 2022-02-02 07:21:10 +00:00
build.config.constants ANDROID: clang: update to 14.0.3 2022-03-24 12:41:35 -07:00
build.config.db845c
build.config.gki
build.config.gki_kasan ANDROID: build.config: re-disable LTO properly for KASAN 2022-03-24 12:41:35 -07:00
build.config.gki_kasan.aarch64
build.config.gki_kasan.x86_64
build.config.gki_kprobes
build.config.gki_kprobes.aarch64
build.config.gki_kprobes.x86_64
build.config.gki-debug.aarch64
build.config.gki-debug.x86_64
build.config.gki.aarch64 ANDROID: GKI: Enable BUILD_GKI_CERTIFICATION_TOOLS 2022-03-25 22:25:34 +08:00
build.config.gki.x86_64 ANDROID: GKI: Enable BUILD_GKI_CERTIFICATION_TOOLS 2022-03-25 22:25:34 +08:00
build.config.khwasan ANDROID: Add a build config fragment for KHWASan. 2021-10-13 19:44:44 +00:00
build.config.rockpi4 ANDROID: rockpi4: Use new DTS_EXT_DIR feature 2021-12-13 21:27:46 +00:00
build.config.x86_64 ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
COPYING
CREDITS MAINTAINERS: replace a Microchip AT91 maintainer 2022-02-09 11:30:01 +01:00
Kbuild
Kconfig ANDROID: kbuild: add Kconfig support for external modules 2021-12-13 18:33:18 +00:00
Kconfig.ext ANDROID: kbuild: add Kconfig support for external modules 2021-12-13 18:33:18 +00:00
MAINTAINERS Merge 7403e6d826 ("Merge tag 'vfio-v5.18-rc1' of https://github.com/awilliam/linux-vfio") into android-mainline 2022-04-05 14:27:38 +02:00
Makefile FROMGIT: kbuild: Add environment variables for userprogs flags 2022-04-05 14:09:03 -07:00
OWNERS
OWNERS_DrNo Revert "ANDROID: pause DrNo for maennich@ due to OOO" 2021-10-04 08:21:36 +00:00
README
README.md

How do I submit patches to Android Common Kernels

  1. BEST: Make all of your changes to upstream Linux. If appropriate, backport to the stable releases. These patches will be merged automatically in the corresponding common kernels. If the patch is already in upstream Linux, post a backport of the patch that conforms to the patch requirements below.

    • Do not send patches upstream that contain only symbol exports. To be considered for upstream Linux, additions of EXPORT_SYMBOL_GPL() require an in-tree modular driver that uses the symbol -- so include the new driver or changes to an existing driver in the same patchset as the export.
    • When sending patches upstream, the commit message must contain a clear case for why the patch is needed and beneficial to the community. Enabling out-of-tree drivers or functionality is not not a persuasive case.
  2. LESS GOOD: Develop your patches out-of-tree (from an upstream Linux point-of-view). Unless these are fixing an Android-specific bug, these are very unlikely to be accepted unless they have been coordinated with kernel-team@android.com. If you want to proceed, post a patch that conforms to the patch requirements below.

Common Kernel patch requirements

  • All patches must conform to the Linux kernel coding standards and pass scripts/checkpatch.pl
  • Patches shall not break gki_defconfig or allmodconfig builds for arm, arm64, x86, x86_64 architectures (see https://source.android.com/setup/build/building-kernels)
  • If the patch is not merged from an upstream branch, the subject must be tagged with the type of patch: UPSTREAM:, BACKPORT:, FROMGIT:, FROMLIST:, or ANDROID:.
  • All patches must have a Change-Id: tag (see https://gerrit-review.googlesource.com/Documentation/user-changeid.html)
  • If an Android bug has been assigned, there must be a Bug: tag.
  • All patches must have a Signed-off-by: tag by the author and the submitter

Additional requirements are listed below based on patch type

Requirements for backports from mainline Linux: UPSTREAM:, BACKPORT:

  • If the patch is a cherry-pick from Linux mainline with no changes at all
    • tag the patch subject with UPSTREAM:.
    • add upstream commit information with a (cherry picked from commit ...) line
    • Example:
      • if the upstream commit message is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
  • then Joe Smith would upload the patch for the common kernel as
        UPSTREAM: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch requires any changes from the upstream version, tag the patch with BACKPORT: instead of UPSTREAM:.
    • use the same tags as UPSTREAM:
    • add comments about the changes under the (cherry picked from commit ...) line
    • Example:
        BACKPORT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        [joe: Resolved minor conflict in drivers/foo/bar.c ]
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for other backports: FROMGIT:, FROMLIST:,

  • If the patch has been merged into an upstream maintainer tree, but has not yet been merged into Linux mainline
    • tag the patch subject with FROMGIT:
    • add info on where the patch came from as (cherry picked from commit <sha1> <repo> <branch>). This must be a stable maintainer branch (not rebased, so don't use linux-next for example).
    • if changes were required, use BACKPORT: FROMGIT:
    • Example:
      • if the commit message in the maintainer tree is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
  • then Joe Smith would upload the patch for the common kernel as
        FROMGIT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        (cherry picked from commit 878a2fd9de10b03d11d2f622250285c7e63deace
         https://git.kernel.org/pub/scm/linux/kernel/git/foo/bar.git test-branch)
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch has been submitted to LKML, but not accepted into any maintainer tree
    • tag the patch subject with FROMLIST:
    • add a Link: tag with a link to the submittal on lore.kernel.org
    • add a Bug: tag with the Android bug (required for patches not accepted into a maintainer tree)
    • if changes were required, use BACKPORT: FROMLIST:
    • Example:
        FROMLIST: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Link: https://lore.kernel.org/lkml/20190619171517.GA17557@someone.com/
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for Android-specific patches: ANDROID:

  • If the patch is fixing a bug to Android-specific code
    • tag the patch subject with ANDROID:
    • add a Fixes: tag that cites the patch with the bug
    • Example:
        ANDROID: fix android-specific bug in foobar.c

        This is the detailed description of the important fix

        Fixes: 1234abcd2468 ("foobar: add cool feature")
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch is a new feature
    • tag the patch subject with ANDROID:
    • add a Bug: tag with the Android bug (required for android-specific features)