linux/scripts
Arnd Bergmann 0fcb70851f Makefile.extrawarn: turn on missing-prototypes globally
Over the years we went from > 1000 of warnings to under 100 earlier this
year, and I sent patches to address all the ones that I saw with compile
testing randcom configs on arm64, arm and x86 kernels.  This is a really
useful warning, as it catches real bugs when there are mismatched
prototypes.  In particular with kernel control flow integrity enabled,
those are no longer allowed.

I have done extensive testing to ensure that there are no new build errors
or warnings on any configuration of x86, arm and arm64 builds.  I also
made sure that at least both the normal defconfig and an allmodconfig
build is clean for arc, csky, loongarch, m68k, microblaze, openrisc,
parisc, powerpc, riscv, s390, and xtensa, with the respective maintainers
doing most of the patches.

At this point, there are five architectures with a number of known
regressions: alpha, nios2, mips, sh and sparc.  In the previous version of
this patch, I had turned off the missing prototype warnings for the 15
architectures that still had issues, but since there are only five left, I
think we can leave the rest to the maintainers (Cc'd here) as well.

Link: https://lkml.kernel.org/r/20231123110506.707903-7-arnd@kernel.org
Link: https://lore.kernel.org/lkml/20230810141947.1236730-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com> # RISC-V
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nicolas Schier <nicolas@fjasle.eu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tudor Ambarus <tudor.ambarus@linaro.org>
Cc: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-12-20 15:02:57 -08:00
..
atomic locking/atomic: Add generic support for sync_try_cmpxchg() and its fallback 2023-10-09 18:14:15 +02:00
basic kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion 2023-06-22 21:21:06 +09:00
clang-tools run-clang-tools: Add pass through checks and and header-filter arguments 2023-10-12 10:01:55 -07:00
coccinelle Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage" 2023-07-29 11:05:31 -04:00
dtc dt: dt-extract-compatibles: Add flag for driver matching compatibles 2023-09-20 14:25:10 -05:00
dummy-tools kbuild: dummy-tools: pretend we understand -fpatchable-function-entry 2023-11-01 23:24:56 +09:00
gcc-plugins gcc-plugins: randstruct: Update code comment in relayout_struct() 2023-11-27 16:30:05 -08:00
gdb scripts/gdb: remove exception handling and refine print format 2023-12-10 17:21:49 -08:00
genksyms genksyms: adjust the output format to modpost 2022-05-24 16:33:20 +09:00
kconfig kconfig: fix memory leak from range properties 2023-11-17 13:24:08 +09:00
ksymoops
mod modpost: fix section mismatch message for RELA 2023-11-16 20:14:44 +09:00
package kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
selinux selinux: remove runtime disable message in the install_policy.sh script 2022-09-20 14:12:25 -04:00
tracing tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
.gitignore rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
as-version.sh kbuild: Update assembler calls to use proper flags and language target 2023-01-26 12:41:38 +09:00
asn1_compiler.c ASN.1: Fix check for strdup() success 2023-04-21 08:58:00 -07:00
bloat-o-meter scripts/bloat-o-meter: count weak symbol sizes 2023-08-21 13:46:25 -07:00
bootgraph.pl
bpf_doc.py bpf, docs: Fix invalid escape sequence warnings in bpf_doc.py 2023-08-31 13:56:31 +02:00
cc-can-link.sh
cc-version.sh scripts: Remove ICC-related dead code 2023-04-24 10:18:32 -07:00
check_extable.sh
check-git kbuild: use git-archive for source package creation 2023-03-16 22:46:12 +09:00
check-sysctl-docs sysctl: Remove register_sysctl_table 2023-05-23 21:43:26 -07:00
checkdeclares.pl
checkincludes.pl
checkkconfigsymbols.py scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
checkpatch.pl checkpatch: do not require an empty line before error injection 2023-12-10 17:21:31 -08:00
checkstack.pl checkstack: sort output by size and function name 2023-12-10 17:21:32 -08:00
checksyscalls.sh checksyscalls: ignore fstat to silence build warning on LoongArch 2023-03-23 17:18:32 -07:00
checkversion.pl
cleanfile
cleanpatch
coccicheck scripts: coccicheck: Use /usr/bin/env 2023-02-25 20:11:06 +01:00
config
const_structs.checkpatch const_structs.checkpatch: add xattr_handler 2023-10-12 17:14:11 +02:00
decode_stacktrace.sh scripts: decode_stacktrace: demangle Rust symbols 2022-09-28 09:01:40 +02:00
decodecode scripts/decodecode: Add support for RISC-V 2023-02-21 16:53:54 -08:00
depmod.sh kbuild: move depmod rule to scripts/Makefile.modinst 2023-08-29 22:38:23 +09:00
dev-needs.sh
diffconfig scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
documentation-file-ref-check
export_report.pl
extract_xc3028.pl
extract-ikconfig scripts/extract-ikconfig: add zstd compression support 2022-08-29 13:58:47 +09:00
extract-module-sig.pl
extract-sys-certs.pl
extract-vmlinux
faddr2line scripts/faddr2line: Skip over mapping symbols in output from readelf 2023-10-23 08:36:46 -07:00
file-size.sh
find-unused-docs.sh
gcc-x86_32-has-stack-protector.sh
gcc-x86_64-has-stack-protector.sh
gen-randstruct-seed.sh randstruct: Move seed generation into scripts/basic/ 2022-05-08 01:33:07 -07:00
generate_initcall_order.pl
generate_rust_analyzer.py scripts: generate_rust_analyzer: provide cfgs for core and alloc 2023-08-20 22:54:32 +02:00
generate_rust_target.rs x86: enable initial Rust support 2022-09-28 09:02:45 +02:00
get_abi.pl scripts/get_abi: Fix wrong script file name in the help message 2022-04-24 10:38:44 +02:00
get_dvb_firmware
get_feat.pl scripts: get_feat.pl: use /usr/bin/env to find perl 2022-06-30 12:22:17 -06:00
get_maintainer.pl get_maintainer: add --keywords-in-file option 2023-10-18 14:43:22 -07:00
gfp-translate scripts: fix the gfp flags header path in gfp-translate 2023-06-19 13:19:32 -07:00
head-object-list.txt powerpc/64: Rename entry_64.S to prom_entry_64.S 2023-06-15 14:04:19 +10:00
headerdep.pl
headers_install.sh hexagon: Remove unusable symbols from the ptrace.h uapi 2023-10-25 15:54:24 +02:00
insert-sys-cert.c
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
jobserver-exec scripts: support GNU make 4.4 in jobserver-exec 2023-01-16 20:15:20 +09:00
kallsyms.c scripts/kallsyms: Fix build failure by setting errno before calling getline() 2023-07-29 15:57:32 +09:00
Kbuild.include kbuild: replace $(dot-target).tmp in filechk with $(tmp-target) 2023-01-22 23:43:33 +09:00
Kconfig.include kbuild: Update assembler calls to use proper flags and language target 2023-01-26 12:41:38 +09:00
kernel-doc scripts/kernel-doc: Fix the regex for matching -Werror flag 2023-10-30 10:52:07 -06:00
ld-version.sh
leaking_addresses.pl leaking_addresses: also skip canonical ftrace path 2023-03-29 06:52:08 -04:00
Lindent
link-vmlinux.sh Kbuild updates for v6.4 2023-04-30 11:32:53 -07:00
Makefile rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
Makefile.asm-generic kbuild: add kbuild-file macro 2022-11-22 23:40:02 +09:00
Makefile.btf kbuild: avoid too many execution of scripts/pahole-flags.sh 2023-10-28 21:10:08 +09:00
Makefile.build Kbuild updates for v6.7 2023-11-04 08:07:19 -10:00
Makefile.clang Kbuild updates for v6.5 2023-07-01 09:24:31 -07:00
Makefile.clean kbuild: make clean rule robust against too long argument error 2023-06-25 23:12:20 +09:00
Makefile.compiler Kbuild updates for v6.5 2023-07-01 09:24:31 -07:00
Makefile.debug Makefile.debug: support for -gz=zstd 2022-11-21 10:18:39 +09:00
Makefile.defconf kbuild: Provide a version of merge_into_defconfig without override warnings 2023-02-13 20:18:28 +01:00
Makefile.dtbinst kbuild: Support flat DTBs install 2023-06-21 07:51:08 -06:00
Makefile.extrawarn Makefile.extrawarn: turn on missing-prototypes globally 2023-12-20 15:02:57 -08:00
Makefile.gcc-plugins gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file 2022-08-16 12:25:53 -07:00
Makefile.headersinst
Makefile.host rust: Respect HOSTCC when linking for host 2023-10-14 18:26:28 +09:00
Makefile.kasan kasan: remove hwasan-kernel-mem-intrinsic-prefix=1 for clang-14 2023-04-18 16:29:43 -07:00
Makefile.kcov
Makefile.kcsan
Makefile.kmsan kmsan: add KMSAN runtime core 2022-10-03 14:03:19 -07:00
Makefile.lib kbuild: Move the single quotes for image name 2023-11-17 13:24:08 +09:00
Makefile.modfinal kbuild: remove ARCH_POSTLINK from module builds 2023-10-28 21:10:08 +09:00
Makefile.modinst kbuild: Use CRC32 and a 1MiB dictionary for XZ compressed modules 2023-09-25 16:01:05 +09:00
Makefile.modpost linux/export.h: make <linux/export.h> independent of CONFIG_MODULES 2023-07-25 00:59:32 +09:00
Makefile.package kbuild: make binrpm-pkg always produce kernel-devel package 2023-10-18 17:16:09 +09:00
Makefile.randstruct randstruct: Enable Clang support 2022-05-08 01:33:07 -07:00
Makefile.ubsan ubsan: Tighten UBSAN_BOUNDS on GCC 2023-05-16 13:57:14 -07:00
Makefile.userprogs kbuild: support 'userldlibs' syntax 2023-11-01 23:26:01 +09:00
Makefile.vdsoinst kbuild: unify vdso_install rules 2023-10-28 21:09:02 +09:00
Makefile.vmlinux x86/retpoline: Make sure there are no unconverted return thunks due to KCSAN 2023-10-20 13:02:23 +02:00
Makefile.vmlinux_o x86/srso: Fix unret validation dependencies 2023-10-20 11:46:59 +02:00
makelst
markup_oops.pl
min-tool-version.sh rust: upgrade to Rust 1.73.0 2023-10-15 21:25:08 +02:00
misc-check kbuild: make W=1 warn files that are tracked but ignored by git 2023-01-22 23:43:33 +09:00
mkcompile_h Revert "kbuild: Make scripts/compile.h when sh != bash" 2022-09-29 04:40:15 +09:00
mksysmap scripts/mksysmap: Ignore prefixed KCFI symbols 2023-06-27 08:35:43 +09:00
mkuboot.sh
module.lds.S arm64: unwind: add asynchronous unwind tables to kernel and modules 2022-11-09 18:06:35 +00:00
modules-check.sh kbuild: change module.order to list *.o instead of *.ko 2022-12-14 15:42:40 +09:00
nsdeps scripts/nsdeps: adjust to the format change of *.mod files 2022-06-08 20:14:13 +09:00
objdiff kbuild: clean .tmp_* pattern by make clean 2022-06-05 06:20:57 +09:00
objdump-func scripts/objdump-func: Support multiple functions 2023-04-14 16:08:28 +02:00
orc_hash.sh x86/unwind/orc: Add ELF section with ORC version identifier 2023-06-16 17:17:42 +02:00
pahole-version.sh kbuild: Add CONFIG_PAHOLE_VERSION 2022-02-02 11:19:33 +01:00
parse-maintainers.pl
patch-kernel
profile2linkerlist.pl
prune-kernel scripts/prune-kernel: Use kernel-install if available 2022-05-11 21:46:38 +09:00
recordmcount.c recordmcount: Fix memory leaks in the uwrite function 2023-04-25 21:10:20 -04:00
recordmcount.h
recordmcount.pl nds32: Remove the architecture 2022-03-07 13:54:59 +01:00
relocs_check.sh powerpc: Move script to check relocations at compile time in scripts/ 2023-04-19 07:46:31 -07:00
remove-stale-files kbuild: rpm-pkg: generate kernel.spec in rpmbuild/SPECS/ 2023-10-03 20:49:09 +09:00
rust_is_available_bindgen_libclang.h scripts: add rust_is_available.sh 2022-09-28 09:02:06 +02:00
rust_is_available_test.py kbuild: rust_is_available: add test suite 2023-08-10 01:18:34 +02:00
rust_is_available.sh kbuild: rust_is_available: check that output looks as expected 2023-08-10 01:18:34 +02:00
rustdoc_test_builder.rs rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
rustdoc_test_gen.rs rust: support running Rust documentation tests as KUnit ones 2023-07-19 09:32:53 -06:00
setlocalversion scripts/setlocalversion: also consider annotated tags of the form vx.y.z-${file_localversion} 2023-08-08 01:08:54 +09:00
show_delta scripts/show_delta: add __main__ judgement before main code 2023-10-18 14:43:23 -07:00
sign-file.c sign-file: Fix confusing error messages 2022-08-03 23:56:20 +03:00
sorttable.c LoongArch: extable: Add type and data fields 2022-12-14 08:36:11 +08:00
sorttable.h x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
spdxcheck-test.sh docs: move Linux logo into a new images folder 2022-06-01 09:32:45 -06:00
spdxcheck.py scripts/spdxcheck: Put excluded files and directories into a separate file 2022-05-18 15:34:33 +02:00
spdxexclude scripts/spdxcheck: Exclude top-level README 2022-05-18 15:35:42 +02:00
spelling.txt scripts/spelling.txt: add more spellings to spelling.txt 2023-12-10 17:21:33 -08:00
sphinx-pre-install docs: sphinx-pre-install: don't require the RTD theme 2022-10-13 11:14:43 -06:00
split-man.pl
stackdelta
stackusage
subarch.include LoongArch: Add build infrastructure 2022-06-03 20:09:27 +08:00
syscallhdr.sh
syscallnr.sh
syscalltbl.sh
tags.sh Char/Misc and other driver subsystem updates for 6.5-rc1 2023-07-03 12:46:47 -07:00
test_fortify.sh fortify: Update compile-time tests for Clang 14 2022-02-13 16:50:06 -08:00
tools-support-relr.sh Makefile: use -z pack-relative-relocs 2023-04-17 11:23:06 +09:00
unifdef.c
ver_linux
xen-hypercalls.sh
xz_wrap.sh