summaryrefslogtreecommitdiff
path: root/scripts
AgeCommit message (Collapse)Author
2022-08-04Merge tag 'spdx-6.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull SPDX updates from Greg KH: "Here is the set of SPDX comment updates for 6.0-rc1. Nothing huge here, just a number of updated SPDX license tags and cleanups based on the review of a number of common patterns in GPLv2 boilerplate text. Also included in here are a few other minor updates, two USB files, and one Documentation file update to get the SPDX lines correct. All of these have been in the linux-next tree for a very long time" * tag 'spdx-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (28 commits) Documentation: samsung-s3c24xx: Add blank line after SPDX directive x86/crypto: Remove stray comment terminator treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_406.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_398.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_391.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_320.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_319.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_318.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_298.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_292.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_179.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 2) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_168.RULE (part 1) treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_160.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_152.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_149.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_147.RULE treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_133.RULE ...
2022-08-04Merge tag 'char-misc-6.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver updates from Greg KH: "Here is the large set of char and misc and other driver subsystem changes for 6.0-rc1. Highlights include: - large set of IIO driver updates, additions, and cleanups - new habanalabs device support added (loads of register maps much like GPUs have) - soundwire driver updates - phy driver updates - slimbus driver updates - tiny virt driver fixes and updates - misc driver fixes and updates - interconnect driver updates - hwtracing driver updates - fpga driver updates - extcon driver updates - firmware driver updates - counter driver update - mhi driver fixes and updates - binder driver fixes and updates - speakup driver fixes All of these have been in linux-next for a while without any reported problems" * tag 'char-misc-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (634 commits) drivers: lkdtm: fix clang -Wformat warning char: remove VR41XX related char driver misc: Mark MICROCODE_MINOR unused spmi: trace: fix stack-out-of-bound access in SPMI tracing functions dt-bindings: iio: adc: Add compatible for MT8188 iio: light: isl29028: Fix the warning in isl29028_remove() iio: accel: sca3300: Extend the trigger buffer from 16 to 32 bytes iio: fix iio_format_avail_range() printing for none IIO_VAL_INT iio: adc: max1027: unlock on error path in max1027_read_single_value() iio: proximity: sx9324: add empty line in front of bullet list iio: magnetometer: hmc5843: Remove duplicate 'the' iio: magn: yas530: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: magnetometer: ak8974: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: veml6030: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: vcnl4035: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: vcnl4000: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() macros iio: light: tsl2591: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() iio: light: tsl2583: Use DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr() iio: light: isl29028: Use DEFINE_RUNTIME_DEV_PM_OPS() and pm_ptr() iio: light: gp2ap002: Switch to DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr() ...
2022-08-03Merge tag 'net-next-6.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...
2022-08-02Merge tag 'linux-kselftest-kunit-5.20-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit updates from Shuah Khan: "This consists of several fixes and an important feature to discourage running KUnit tests on production systems. Running tests on a production system could leave the system in a bad state. Summary: - Add a new taint type, TAINT_TEST to signal that a test has been run. This should discourage people from running these tests on production systems, and to make it easier to tell if tests have been run accidentally (by loading the wrong configuration, etc) - Several documentation and tool enhancements and fixes" * tag 'linux-kselftest-kunit-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits) Documentation: KUnit: Fix example with compilation error Documentation: kunit: Add CLI args for kunit_tool kcsan: test: Add a .kunitconfig to run KCSAN tests kunit: executor: Fix a memory leak on failure in kunit_filter_tests clk: explicitly disable CONFIG_UML_PCI_OVER_VIRTIO in .kunitconfig mmc: sdhci-of-aspeed: test: Use kunit_test_suite() macro nitro_enclaves: test: Use kunit_test_suite() macro thunderbolt: test: Use kunit_test_suite() macro kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites kunit: unify module and builtin suite definitions selftest: Taint kernel when test module loaded module: panic: Taint the kernel when selftest modules load Documentation: kunit: fix example run_kunit func to allow spaces in args Documentation: kunit: Cleanup run_wrapper, fix x-ref kunit: test.h: fix a kernel-doc markup kunit: tool: Enable virtio/PCI by default on UML kunit: tool: make --kunitconfig repeatable, blindly concat kunit: add coverage_uml.config to enable GCOV on UML kunit: tool: refactor internal kconfig handling, allow overriding kunit: tool: introduce --qemu_args ...
2022-08-02Merge tag 'docs-6.0' of git://git.lwn.net/linuxLinus Torvalds
Pull documentation updates from Jonathan Corbet: "This was a moderately busy cycle for documentation, but nothing all that earth-shaking: - More Chinese translations, and an update to the Italian translations. The Japanese, Korean, and traditional Chinese translations are more-or-less unmaintained at this point, instead. - Some build-system performance improvements. - The removal of the archaic submitting-drivers.rst document, with the movement of what useful material that remained into other docs. - Improvements to sphinx-pre-install to, hopefully, give more useful suggestions. - A number of build-warning fixes Plus the usual collection of typo fixes, updates, and more" * tag 'docs-6.0' of git://git.lwn.net/linux: (92 commits) docs: efi-stub: Fix paths for x86 / arm stubs Docs/zh_CN: Update the translation of sched-stats to 5.19-rc8 Docs/zh_CN: Update the translation of pci to 5.19-rc8 Docs/zh_CN: Update the translation of pci-iov-howto to 5.19-rc8 Docs/zh_CN: Update the translation of usage to 5.19-rc8 Docs/zh_CN: Update the translation of testing-overview to 5.19-rc8 Docs/zh_CN: Update the translation of sparse to 5.19-rc8 Docs/zh_CN: Update the translation of kasan to 5.19-rc8 Docs/zh_CN: Update the translation of iio_configfs to 5.19-rc8 doc:it_IT: align Italian documentation docs: Remove spurious tag from admin-guide/mm/overcommit-accounting.rst Documentation: process: Update email client instructions for Thunderbird docs: ABI: correct QEMU fw_cfg spec path doc/zh_CN: remove submitting-driver reference from docs docs: zh_TW: align to submitting-drivers removal docs: zh_CN: align to submitting-drivers removal docs: ko_KR: howto: remove reference to removed submitting-drivers docs: ja_JP: howto: remove reference to removed submitting-drivers docs: it_IT: align to submitting-drivers removal docs: process: remove outdated submitting-drivers.rst ...
2022-08-01Merge tag 'x86_build_for_v6.0_rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build updates from Borislav Petkov: - Fix stack protector builds when cross compiling with Clang - Other Kbuild improvements and fixes * tag 'x86_build_for_v6.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/purgatory: Omit use of bin2c x86/purgatory: Hard-code obj-y in Makefile x86/build: Remove unused OBJECT_FILES_NON_STANDARD_test_nx.o x86/Kconfig: Fix CONFIG_CC_HAS_SANE_STACKPROTECTOR when cross compiling with clang
2022-07-25x86/purgatory: Omit use of bin2cMasahiro Yamada
The .incbin assembler directive is much faster than bin2c + $(CC). Do similar refactoring as in 4c0f032d4963 ("s390/purgatory: Omit use of bin2c"). Please note the .quad directive matches to size_t in C (both 8 byte) because the purgatory is compiled only for the 64-bit kernel. (KEXEC_FILE depends on X86_64). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220725020812.622255-2-masahiroy@kernel.org
2022-07-22Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski
Daniel Borkmann says: ==================== bpf-next 2022-07-22 We've added 73 non-merge commits during the last 12 day(s) which contain a total of 88 files changed, 3458 insertions(+), 860 deletions(-). The main changes are: 1) Implement BPF trampoline for arm64 JIT, from Xu Kuohai. 2) Add ksyscall/kretsyscall section support to libbpf to simplify tracing kernel syscalls through kprobe mechanism, from Andrii Nakryiko. 3) Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function, from Song Liu & Jiri Olsa. 4) Add new kfunc infrastructure for netfilter's CT e.g. to insert and change entries, from Kumar Kartikeya Dwivedi & Lorenzo Bianconi. 5) Add a ksym BPF iterator to allow for more flexible and efficient interactions with kernel symbols, from Alan Maguire. 6) Bug fixes in libbpf e.g. for uprobe binary path resolution, from Dan Carpenter. 7) Fix BPF subprog function names in stack traces, from Alexei Starovoitov. 8) libbpf support for writing custom perf event readers, from Jon Doron. 9) Switch to use SPDX tag for BPF helper man page, from Alejandro Colomar. 10) Fix xsk send-only sockets when in busy poll mode, from Maciej Fijalkowski. 11) Reparent BPF maps and their charging on memcg offlining, from Roman Gushchin. 12) Multiple follow-up fixes around BPF lsm cgroup infra, from Stanislav Fomichev. 13) Use bootstrap version of bpftool where possible to speed up builds, from Pu Lehui. 14) Cleanup BPF verifier's check_func_arg() handling, from Joanne Koong. 15) Make non-prealloced BPF map allocations low priority to play better with memcg limits, from Yafang Shao. 16) Fix BPF test runner to reject zero-length data for skbs, from Zhengchao Shao. 17) Various smaller cleanups and improvements all over the place. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (73 commits) bpf: Simplify bpf_prog_pack_[size|mask] bpf: Support bpf_trampoline on functions with IPMODIFY (e.g. livepatch) bpf, x64: Allow to use caller address from stack ftrace: Allow IPMODIFY and DIRECT ops on the same function ftrace: Add modify_ftrace_direct_multi_nolock bpf/selftests: Fix couldn't retrieve pinned program in xdp veth test bpf: Fix build error in case of !CONFIG_DEBUG_INFO_BTF selftests/bpf: Fix test_verifier failed test in unprivileged mode selftests/bpf: Add negative tests for new nf_conntrack kfuncs selftests/bpf: Add tests for new nf_conntrack kfuncs selftests/bpf: Add verifier tests for trusted kfunc args net: netfilter: Add kfuncs to set and change CT status net: netfilter: Add kfuncs to set and change CT timeout net: netfilter: Add kfuncs to allocate and insert CT net: netfilter: Deduplicate code in bpf_{xdp,skb}_ct_lookup bpf: Add documentation for kfuncs bpf: Add support for forcing kfunc args to be trusted bpf: Switch to new kfunc flags infrastructure tools/resolve_btfids: Add support for 8-byte BTF sets bpf: Introduce 8-byte BTF set ... ==================== Link: https://lore.kernel.org/r/20220722221218.29943-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-22bpf, docs: Use SPDX license identifier in bpf_doc.pyAlejandro Colomar
The Linux man-pages project now uses SPDX tags, instead of the full license text. Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://www.kernel.org/doc/man-pages/licenses.html Link: https://spdx.org/licenses/Linux-man-pages-copyleft.html Link: https://lore.kernel.org/bpf/20220721110821.8240-1-alx.manpages@gmail.com
2022-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21scripts/gdb: Fix gdb 'lx-symbols' commandKhalid Masum
Currently the command 'lx-symbols' in gdb exits with the error`Function "do_init_module" not defined in "kernel/module.c"`. This occurs because the file kernel/module.c was moved to kernel/module/main.c. Fix this breakage by changing the path to "kernel/module/main.c" in LoadModuleBreakpoint. Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Fixes: cfc1d277891e ("module: Move all into module/") Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
include/net/sock.h 310731e2f161 ("net: Fix data-races around sysctl_mem.") e70f3c701276 ("Revert "net: set SK_MEM_QUANTUM to 4096"") https://lore.kernel.org/all/20220711120211.7c8b7cba@canb.auug.org.au/ net/ipv4/fib_semantics.c 747c14307214 ("ip: fix dflt addr selection for connected nexthop") d62607c3fe45 ("net: rename reference+tracking helpers") net/tls/tls.h include/net/tls.h 3d8c51b25a23 ("net/tls: Check for errors in tls_device_init") 587903142308 ("tls: create an internal header") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-11Merge tag 'x86_bugs_retbleed' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 retbleed fixes from Borislav Petkov: "Just when you thought that all the speculation bugs were addressed and solved and the nightmare is complete, here's the next one: speculating after RET instructions and leaking privileged information using the now pretty much classical covert channels. It is called RETBleed and the mitigation effort and controlling functionality has been modelled similar to what already existing mitigations provide" * tag 'x86_bugs_retbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) x86/speculation: Disable RRSBA behavior x86/kexec: Disable RET on kexec x86/bugs: Do not enable IBPB-on-entry when IBPB is not supported x86/entry: Move PUSH_AND_CLEAR_REGS() back into error_entry x86/bugs: Add Cannon lake to RETBleed affected CPU list x86/retbleed: Add fine grained Kconfig knobs x86/cpu/amd: Enumerate BTC_NO x86/common: Stamp out the stepping madness KVM: VMX: Prevent RSB underflow before vmenter x86/speculation: Fill RSB on vmexit for IBRS KVM: VMX: Fix IBRS handling after vmexit KVM: VMX: Prevent guest RSB poisoning attacks with eIBRS KVM: VMX: Convert launched argument to flags KVM: VMX: Flatten __vmx_vcpu_run() objtool: Re-add UNWIND_HINT_{SAVE_RESTORE} x86/speculation: Remove x86_spec_ctrl_mask x86/speculation: Use cached host SPEC_CTRL value for guest entry/exit x86/speculation: Fix SPEC_CTRL write on SMT state change x86/speculation: Fix firmware entry SPEC_CTRL handling x86/speculation: Fix RSB filling with CONFIG_RETPOLINE=n ...
2022-07-11module: panic: Taint the kernel when selftest modules loadDavid Gow
Taint the kernel with TAINT_TEST whenever a test module loads, by adding a new "TEST" module property, and setting it for all modules in the tools/testing directory. This property can also be set manually, for tests which live outside the tools/testing directory with: MODULE_INFO(test, "Y"); Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Aaron Tomlin <atomlin@redhat.com> Acked-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2022-07-11Merge 5.19-rc6 into char-misc-nextGreg Kroah-Hartman
We need the misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-10kbuild: remove unused cmd_none in scripts/Makefile.modinstMasahiro Yamada
Commit 65ce9c38326e ("kbuild: move module strip/compression code into scripts/Makefile.modinst") added this unused code. Perhaps, I thought cmd_none was useful for CONFIG_MODULE_COMPRESS_NONE, but I did not use it after all. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-07-07scripts: sphinx-pre-install: place a warning for Sphinx >= 3.0Mauro Carvalho Chehab
Newer versions of Sphinx have a known bug: https://github.com/sphinx-doc/sphinx/pull/8313 Those currently produces 11 false-positive warnings On Sphinx version 3.1+. While Sphinx fix is not applied, let's warn adventurers that would be using Sphinx installed via distro packages. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/085e0ada65c11da9303d07e70c510dc45f21315b.1656756450.git.mchehab@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-07-07scripts: sphinx-pre-install: provide both venv and package installsMauro Carvalho Chehab
As it is not a consensus about installing sphinx using venv, and modern distributions are now shipping with Sphinx versions above the minimal requirements to build the docs, provide both venv and package install commands by default. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/7c99d985df204c73e3daafd5fd2f30a31269405d.1656756450.git.mchehab@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-07-07scripts: sphinx-pre-install: check for PDF min version later onMauro Carvalho Chehab
Better to add the PDF note late for venv recommendation. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/8e117aabe6dfa1b1ec92dccd20e801393c977667.1656756450.git.mchehab@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-07-07scripts: sphinx-pre-install: report broken venvMauro Carvalho Chehab
After distro upgrades, the directory names for python may change. On such case, the previously-created venv will be broken, and sphinx-build won't run. Add a logic to report it. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/f117f03555b0636d2be0b68f3a23b1d3f03ccf1d.1656756450.git.mchehab@kernel.org [jc: fixed typo in warning message] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-07-07scripts: sphinx-pre-install: fix venv version check logicMauro Carvalho Chehab
The logic which checks if the venv version is good enough but was not activated is broken: it is checking against the wrong val, making it to recommend to re-create a venv every time. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/afe01b7863fd655986d84ace8948f3d7aede796d.1656756450.git.mchehab@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-07-01scripts/tags.sh: Include tools directory in tags generationVipin Sharma
Add tools directory in generating tags and quiet the "No such file or directory" warnings. It reverts the changes introduced in commit 162343a876f1 ("scripts/tags.sh: exclude tools directory from tags generation") while maintainig the original intent of the patch to get rid of the warnings. This allows the root level cscope files to include tools source code besides kernel and a single place to browse the code for both. Acked-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Signed-off-by: Vipin Sharma <vipinsh@google.com> Link: https://lore.kernel.org/r/20220618005457.2379324-1-vipinsh@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
drivers/net/ethernet/microchip/sparx5/sparx5_switchdev.c 9c5de246c1db ("net: sparx5: mdb add/del handle non-sparx5 devices") fbb89d02e33a ("net: sparx5: Allow mdb entries to both CPU and ports") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-30scripts: get_feat.pl: use /usr/bin/env to find perlDavid Reaver
I tried running `make pdfdocs` on NixOS, but it failed because get_feat.pl uses a shebang line with /usr/bin/perl, and that file path doesn't exist on NixOS. Using the more portable /usr/bin/env perl fixes the problem. Signed-off-by: David Reaver <me@davidreaver.com> Link: https://lore.kernel.org/r/20220625211548.1200198-1-me@davidreaver.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-06-29x86/retbleed: Add fine grained Kconfig knobsPeter Zijlstra
Do fine-grained Kconfig for all the various retbleed parts. NOTE: if your compiler doesn't support return thunks this will silently 'upgrade' your mitigation to IBPB, you might not like this. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-29gen_compile_commands: handle multiple lines per .mod fileJohn Hubbard
scripts/clang-tools/gen_compile_commands.py incorrectly assumes that each .mod file only contains one line. That assumption was correct when the script was originally created, but commit 9413e7640564 ("kbuild: split the second line of *.mod into *.usyms") changed the .mod file format so that there is one entry per line, and potentially many lines. The problem can be reproduced by using Kbuild to generate compile_commands.json, like this: make CC=clang compile_commands.json In many cases, the problem might be overlooked because many subsystems only have one line anyway. However, in some subsystems (Nouveau, with 762 entries, is a notable example) it results in skipping most of the subsystem. Fix this by fully processing each .mod file. Fixes: 9413e7640564 ("kbuild: split the second line of *.mod into *.usyms") Signed-off-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-27objtool: Add entry UNRET validationPeter Zijlstra
Since entry asm is tricky, add a validation pass that ensures the retbleed mitigation has been done before the first actual RET instruction. Entry points are those that either have UNWIND_HINT_ENTRY, which acts as UNWIND_HINT_EMPTY but marks the instruction as an entry point, or those that have UWIND_HINT_IRET_REGS at +0. This is basically a variant of validate_branch() that is intra-function and it will simply follow all branches from marked entry points and ensures that all paths lead to ANNOTATE_UNRET_END. If a path hits RET or an indirection the path is a fail and will be reported. There are 3 ANNOTATE_UNRET_END instances: - UNTRAIN_RET itself - exception from-kernel; this path doesn't need UNTRAIN_RET - all early exceptions; these also don't need UNTRAIN_RET Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de>
2022-06-26kbuild: Ignore __this_module in gen_autoksyms.shSami Tolvanen
Module object files can contain an undefined reference to __this_module, which isn't resolved until we link the final .ko. The kernel doesn't export this symbol, so ignore it in gen_autoksyms.sh. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Tested-by: Steve Muckle <smuckle@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Ramji Jiyani <ramjiyani@google.com>
2022-06-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-20modpost: fix section mismatch check for exported init/exit sectionsMasahiro Yamada
Since commit f02e8a6596b7 ("module: Sort exported symbols"), EXPORT_SYMBOL* is placed in the individual section ___ksymtab(_gpl)+<sym> (3 leading underscores instead of 2). Since then, modpost cannot detect the bad combination of EXPORT_SYMBOL and __init/__exit. Fix the .fromsec field. Fixes: f02e8a6596b7 ("module: Sort exported symbols") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-06-19Merge tag 'objtool-urgent-2022-06-19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull build tooling updates from Thomas Gleixner: - Remove obsolete CONFIG_X86_SMAP reference from objtool - Fix overlapping text section failures in faddr2line for real - Remove OBJECT_FILES_NON_STANDARD usage from x86 ftrace and replace it with finegrained annotations so objtool can validate that code correctly. * tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ftrace: Remove OBJECT_FILES_NON_STANDARD usage faddr2line: Fix overlapping text section failures, the sequel objtool: Fix obsolete reference to CONFIG_X86_SMAP
2022-06-17Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextJakub Kicinski
Daniel Borkmann says: ==================== pull-request: bpf-next 2022-06-17 We've added 72 non-merge commits during the last 15 day(s) which contain a total of 92 files changed, 4582 insertions(+), 834 deletions(-). The main changes are: 1) Add 64 bit enum value support to BTF, from Yonghong Song. 2) Implement support for sleepable BPF uprobe programs, from Delyan Kratunov. 3) Add new BPF helpers to issue and check TCP SYN cookies without binding to a socket especially useful in synproxy scenarios, from Maxim Mikityanskiy. 4) Fix libbpf's internal USDT address translation logic for shared libraries as well as uprobe's symbol file offset calculation, from Andrii Nakryiko. 5) Extend libbpf to provide an API for textual representation of the various map/prog/attach/link types and use it in bpftool, from Daniel Müller. 6) Provide BTF line info for RV64 and RV32 JITs, and fix a put_user bug in the core seen in 32 bit when storing BPF function addresses, from Pu Lehui. 7) Fix libbpf's BTF pointer size guessing by adding a list of various aliases for 'long' types, from Douglas Raillard. 8) Fix bpftool to readd setting rlimit since probing for memcg-based accounting has been unreliable and caused a regression on COS, from Quentin Monnet. 9) Fix UAF in BPF cgroup's effective program computation triggered upon BPF link detachment, from Tadeusz Struk. 10) Fix bpftool build bootstrapping during cross compilation which was pointing to the wrong AR process, from Shahab Vahedi. 11) Fix logic bug in libbpf's is_pow_of_2 implementation, from Yuze Chi. 12) BPF hash map optimization to avoid grabbing spinlocks of all CPUs when there is no free element. Also add a benchmark as reproducer, from Feng Zhou. 13) Fix bpftool's codegen to bail out when there's no BTF, from Michael Mullin. 14) Various minor cleanup and improvements all over the place. * https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (72 commits) bpf: Fix bpf_skc_lookup comment wrt. return type bpf: Fix non-static bpf_func_proto struct definitions selftests/bpf: Don't force lld on non-x86 architectures selftests/bpf: Add selftests for raw syncookie helpers in TC mode bpf: Allow the new syncookie helpers to work with SKBs selftests/bpf: Add selftests for raw syncookie helpers bpf: Add helpers to issue and check SYN cookies in XDP bpf: Allow helpers to accept pointers with a fixed size bpf: Fix documentation of th_len in bpf_tcp_{gen,check}_syncookie selftests/bpf: add tests for sleepable (uk)probes libbpf: add support for sleepable uprobe programs bpf: allow sleepable uprobe programs to attach bpf: implement sleepable uprobes by chaining gps bpf: move bpf_prog to bpf.h libbpf: Fix internal USDT address translation logic for shared libraries samples/bpf: Check detach prog exist or not in xdp_fwd selftests/bpf: Avoid skipping certain subtests selftests/bpf: Fix test_varlen verification failure with latest llvm bpftool: Do not check return value from libbpf_set_strict_mode() Revert "bpftool: Use libbpf 1.0 API mode instead of RLIMIT_MEMLOCK" ... ==================== Link: https://lore.kernel.org/r/20220617220836.7373-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-06-16bpf: Add helpers to issue and check SYN cookies in XDPMaxim Mikityanskiy
The new helpers bpf_tcp_raw_{gen,check}_syncookie_ipv{4,6} allow an XDP program to generate SYN cookies in response to TCP SYN packets and to check those cookies upon receiving the first ACK packet (the final packet of the TCP handshake). Unlike bpf_tcp_{gen,check}_syncookie these new helpers don't need a listening socket on the local machine, which allows to use them together with synproxy to accelerate SYN cookie generation. Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220615134847.3753567-4-maximmi@nvidia.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-06-13scripts: kernel-doc: Always increment warnings counterNiklas Söderlund
Some warnings do not increment the warnings counter making the behavior of running kernel-doc with -Werror unlogical as some warnings will be generated but not treated as errors. Fix this by creating a helper function that always incrementing the warnings counter every time a warning is emitted. There is one location in get_sphinx_version() where a warning is not touched as it concerns the execution environment of the kernel-doc and not the documentation being processed. Incrementing the counter only have effect when running kernel-doc in either verbose mode (-v or environment variable KBUILD_VERBOSE) or when treating warnings as errors (-Werror or environment variable KDOC_WERROR). In both cases the number of warnings printed is printed to stderr and for the later the exit code of kernel-doc is non-zero if warnings where encountered. Simple test case to demo one of the warnings, $ cat test.c /** * foo() - Description */ int bar(); # Without this change $ ./scripts/kernel-doc -Werror -none test.c test.c:4: warning: expecting prototype for foo(). Prototype was for bar() instead # With this change $ ./scripts/kernel-doc -Werror -none test.c test.c:4: warning: expecting prototype for foo(). Prototype was for bar() instead 1 warnings as Errors Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com> Link: https://lore.kernel.org/r/20220613090510.3088294-1-niklas.soderlund@corigine.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-06-12Merge tag 'kbuild-fixes-v5.19' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Make the *.mod build rule portable for POSIX awk - Fix regression of 'make nsdeps' - Make scripts/check-local-export working for older bash versions - Fix scripts/gdb to extract the .config data from vmlinux * tag 'kbuild-fixes-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: scripts/gdb: change kernel config dumping method scripts/check-local-export: avoid 'wait $!' for process substitution scripts/nsdeps: adjust to the format change of *.mod files kbuild: avoid regex RS for POSIX awk
2022-06-11scripts/gdb: change kernel config dumping methodKuan-Ying Lee
MAGIC_START("IKCFG_ST") and MAGIC_END("IKCFG_ED") are moved out from the kernel_config_data variable. Thus, we parse kernel_config_data directly instead of considering offset of MAGIC_START and MAGIC_END. Fixes: 13610aa908dc ("kernel/configs: use .incbin directive to embed config_data.gz") Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-10treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_385.RULEThomas Gleixner
Based on the normalized pattern: licensed under the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference. Reviewed-by: Allison Randal <allison@lohutok.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-10scripts/check-local-export: avoid 'wait $!' for process substitutionMasahiro Yamada
Bash 4.4, released in 2016, supports 'wait $!' to check the exit status of a process substitution, but it seems too new. Some people using older bash versions (on CentOS 7, Ubuntu 16.04, etc.) reported an error like this: ./scripts/check-local-export: line 54: wait: pid 17328 is not a child of this shell I used the process substitution to avoid a pipeline, which executes each command in a subshell. If the while-loop is executed in the subshell context, variable changes within are lost after the subshell terminates. Fortunately, Bash 4.2, released in 2011, supports the 'lastpipe' option, which makes the last element of a pipeline run in the current shell process. Switch to the pipeline with 'lastpipe' solution, and also set 'pipefail' to catch errors from ${NM}. Add the bash requirement to Documentation/process/changes.rst. Fixes: 31cb50b5590f ("kbuild: check static EXPORT_SYMBOL* by script instead of modpost") Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reported-by: Michael Ellerman <mpe@ellerman.id.au> Reported-by: Wang Yugui <wangyugui@e16-tech.com> Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Tested-by: Jon Hunter <jonathanh@nvidia.com> Acked-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64) Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-08cert host tools: Stop complaining about deprecated OpenSSL functionsLinus Torvalds
OpenSSL 3.0 deprecated the OpenSSL's ENGINE API. That is as may be, but the kernel build host tools still use it. Disable the warning about deprecated declarations until somebody who cares fixes it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-06-08scripts/nsdeps: adjust to the format change of *.mod filesMasahiro Yamada
Commit 22f26f21774f ("kbuild: get rid of duplication in *.mod files") changed the format of *.mod files to put one object per line, but missed to adjust scripts/nsdeps. Fixes: 22f26f21774f ("kbuild: get rid of duplication in *.mod files") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-08kbuild: avoid regex RS for POSIX awkKevin Locke
In 22f26f21774f8 awk was added to deduplicate *.mod files. The awk invocation passes -v RS='( |\n)' to match a space or newline character as the record separator. Unfortunately, POSIX states[1] > If RS contains more than one character, the results are unspecified. Some implementations (such as the One True Awk[2] used by the BSDs) do not treat RS as a regular expression. When awk does not support regex RS, build failures such as the following are produced (first error using allmodconfig): CC [M] arch/x86/events/intel/uncore.o CC [M] arch/x86/events/intel/uncore_nhmex.o CC [M] arch/x86/events/intel/uncore_snb.o CC [M] arch/x86/events/intel/uncore_snbep.o CC [M] arch/x86/events/intel/uncore_discovery.o LD [M] arch/x86/events/intel/intel-uncore.o ld: cannot find uncore_nhmex.o: No such file or directory ld: cannot find uncore_snb.o: No such file or directory ld: cannot find uncore_snbep.o: No such file or directory ld: cannot find uncore_discovery.o: No such file or directory make[3]: *** [scripts/Makefile.build:422: arch/x86/events/intel/intel-uncore.o] Error 1 make[2]: *** [scripts/Makefile.build:487: arch/x86/events/intel] Error 2 make[1]: *** [scripts/Makefile.build:487: arch/x86/events] Error 2 make: *** [Makefile:1839: arch/x86] Error 2 To avoid this, use printf(1) to produce a newline between each object path, instead of the space produced by echo(1), so that the default RS can be used by awk. [1]: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/awk.html [2]: https://github.com/onetrueawk/awk Fixes: 22f26f21774f ("kbuild: get rid of duplication in *.mod files") Signed-off-by: Kevin Locke <kevin@kevinlocke.name> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-06faddr2line: Fix overlapping text section failures, the sequelJosh Poimboeuf
If a function lives in a section other than .text, but .text also exists in the object, faddr2line may wrongly assume .text. This can result in comically wrong output. For example: $ scripts/faddr2line vmlinux.o enter_from_user_mode+0x1c enter_from_user_mode+0x1c/0x30: find_next_bit at /home/jpoimboe/git/linux/./include/linux/find.h:40 (inlined by) perf_clear_dirty_counters at /home/jpoimboe/git/linux/arch/x86/events/core.c:2504 Fix it by passing the section name to addr2line, unless the object file is vmlinux, in which case the symbol table uses absolute addresses. Fixes: 1d1a0e7c5100 ("scripts/faddr2line: Fix overlapping text section failures") Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/7d25bc1408bd3a750ac26e60d2f2815a5f4a8363.1654130536.git.jpoimboe@kernel.org
2022-06-05Merge tag 'objtool-urgent-2022-06-05' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool fixes from Thomas Gleixner: - Handle __ubsan_handle_builtin_unreachable() correctly and treat it as noreturn - Allow architectures to select uaccess validation - Use the non-instrumented bit test for test_cpu_has() to prevent escape from non-instrumentable regions - Use arch_ prefixed atomics for JUMP_LABEL=n builds to prevent escape from non-instrumentable regions - Mark a few tiny inline as __always_inline to prevent GCC from bringing them out of line and instrumenting them - Mark the empty stub context_tracking_enabled() as always inline as GCC brings them out of line and instruments the empty shell - Annotate ex_handler_msr_mce() as dead end * tag 'objtool-urgent-2022-06-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/extable: Annotate ex_handler_msr_mce() as a dead end context_tracking: Always inline empty stubs x86: Always inline on_thread_stack() and current_top_of_stack() jump_label,noinstr: Avoid instrumentation for JUMP_LABEL=n builds x86/cpu: Elide KCSAN for cpu_has() and friends objtool: Mark __ubsan_handle_builtin_unreachable() as noreturn objtool: Add CONFIG_HAVE_UACCESS_VALIDATION
2022-06-05Merge tag 'kbuild-v5.19-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: - Fix build regressions for parisc, csky, nios2, openrisc - Simplify module builds for CONFIG_LTO_CLANG and CONFIG_X86_KERNEL_IBT - Remove arch/parisc/nm, which was presumably a workaround for old tools - Check the odd combination of EXPORT_SYMBOL and 'static' precisely - Make external module builds robust against "too long argument error" - Support j, k keys for moving the cursor in nconfig * tag 'kbuild-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits) kbuild: Allow to select bash in a modified environment scripts: kconfig: nconf: make nconfig accept jk keybindings modpost: use fnmatch() to simplify match() modpost: simplify mod->name allocation kbuild: factor out the common objtool arguments kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o kbuild: clean .tmp_* pattern by make clean kbuild: remove redundant cleanups in scripts/link-vmlinux.sh kbuild: rebuild multi-object modules when objtool is updated kbuild: add cmd_and_savecmd macro kbuild: make *.mod rule robust against too long argument error kbuild: make built-in.a rule robust against too long argument error kbuild: check static EXPORT_SYMBOL* by script instead of modpost parisc: remove arch/parisc/nm kbuild: do not create *.prelink.o for Clang LTO or IBT kbuild: replace $(linked-object) with CONFIG options kbuild: do not try to parse *.cmd files for objects provided by compiler kbuild: replace $(if A,A,B) with $(or A,B) in scripts/Makefile.modpost modpost: squash if...else-if in find_elf_symbol2() modpost: reuse ARRAY_SIZE() macro for section_mismatch() ...
2022-06-05kbuild: Allow to select bash in a modified environmentSchspa Shi
This fixes the build error when the system has a default bash version which is too old to support associative array variables. The build error log as fellowing: linux/scripts/check-local-export: line 11: declare: -A: invalid option declare: usage: declare [-afFirtx] [-p] [name[=value] ...] Signed-off-by: Schspa Shi <schspa@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-05scripts: kconfig: nconf: make nconfig accept jk keybindingsIsak Ellmer
Make nconfig accept jk keybindings for movement in addition to arrow keys. Signed-off-by: Isak Ellmer <isak01@gmail.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-05modpost: use fnmatch() to simplify match()Masahiro Yamada
Replace the own implementation for wildcard (glob) matching with a function call to fnmatch(). Also, change the return type to 'bool'. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-06-05modpost: simplify mod->name allocationMasahiro Yamada
mod->name is set to the ELF filename with the suffix ".o" stripped. The current code calls strdup() and free() to manipulate the string, but a simpler approach is to pass new_module() with the name length subtracted by 2. Also, check if the passed filename ends with ".o" before stripping it. The current code blindly chops the suffix: tmp[strlen(tmp) - 2] = '\0' It will cause buffer under-run if strlen(tmp) < 2; Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-06-05kbuild: factor out the common objtool argumentsMasahiro Yamada
scripts/Makefile.build and scripts/link-vmlinux.sh have similar setups for the objtool arguments. It was difficult to factor out them because all the vmlinux build rules were written in a shell script. It is somewhat tedious to touch the two files every time a new objtool option is supported. To reduce the code duplication, move the objtool for vmlinux.o into scripts/Makefile.vmlinux_o. Then, move the common macros to Makefile.lib so they are shared between Makefile.build and Makefile.vmlinux_o. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
2022-06-05kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_oMasahiro Yamada
This is a preparation for moving the objtool rule in the next commit. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)