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Nathan Chancellor 8f6629c004 kbuild: Move -Wenum-enum-conversion to W=2 
-Wenum-enum-conversion was strengthened in clang-19 to warn for C, which
caused the kernel to move it to W=1 in commit 75b5ab134b ("kbuild:
Move -Wenum-{compare-conditional,enum-conversion} into W=1") because
there were numerous instances that would break builds with -Werror.
Unfortunately, this is not a full solution, as more and more developers,
subsystems, and distributors are building with W=1 as well, so they
continue to see the numerous instances of this warning.

Since the move to W=1, there have not been many new instances that have
appeared through various build reports and the ones that have appeared
seem to be following similar existing patterns, suggesting that most
instances of this warning will not be real issues. The only alternatives
for silencing this warning are adding casts (which is generally seen as
an ugly practice) or refactoring the enums to macro defines or a unified
enum (which may be undesirable because of type safety in other parts of
the code).

Move the warning to W=2, where warnings that occur frequently but may be
relevant should reside.

Cc: stable@vger.kernel.org
Fixes: 75b5ab134b ("kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1")
Link: https://lore.kernel.org/ZwRA9SOcOjjLJcpi@google.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-02-07 19:49:07 -08:00
..
atomic locking/atomic: scripts: fix ${atomic}_sub_and_test() kerneldoc 2024-06-05 15:52:34 +02:00
basic fixdep: use xmalloc() 2024-09-01 20:34:49 +09:00
clang-tools gen_compile_commands: fix invalid escape sequence warning 2024-02-15 06:57:19 +09:00
coccinelle coccinelle: misc: add secs_to_jiffies script 2025-01-12 20:21:01 -08:00
dtc dt: dt-extract-compatibles: Extract compatibles from function parameters 2024-09-05 10:17:03 -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: Remove GCC 4.7 or newer requirement 2024-08-05 14:34:23 -07:00
gdb scripts/gdb: fix aarch64 userspace detection in get_current_task 2025-02-01 03:53:24 -08:00
gendwarfksyms gendwarfksyms: Add support for symbol type pointers 2025-01-11 01:25:26 +09:00
genksyms genksyms: fix syntax error for attribute before init-declarator 2025-01-27 07:44:16 +09:00
include scripts: import more list macros 2024-10-07 02:12:27 +09:00
ipe scripts: ipe: polgen: remove redundant close and error exit path 2024-11-19 13:57:03 -08:00
kconfig kconfig: fix memory leak in sym_warn_unmet_dep() 2025-01-30 08:43:12 +09:00
ksymoops
mod Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
package kheaders: use 'tar' instead of 'cpio' for copying files 2025-01-10 23:01:22 +09:00
selinux Remove stale generated 'genheaders' file 2025-01-31 19:49:17 -08:00
tracing tracing: Always use canonical ftrace path 2023-02-18 14:34:09 -05:00
.gitignore lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
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: Allow specifying bpf_fastcall attribute for BPF helpers 2024-10-03 17:47:53 -07:00
build-version kbuild: move init/build-version to scripts/ 2024-07-16 01:08:37 +09:00
cc-can-link.sh
cc-version.sh scripts: Remove ICC-related dead code 2023-04-24 10:18:32 -07:00
check-git kbuild: use git-archive for source package creation 2023-03-16 22:46:12 +09:00
check-sysctl-docs scripts: check-sysctl-docs: handle per-namespace sysctls 2024-02-23 12:13:09 +01:00
check-uapi.sh check-uapi: Introduce check-uapi.sh 2023-12-29 22:25:20 +09:00
check-variable-fonts.sh docs: scripts/check-variable-fonts.sh: Improve commands for detection 2024-05-02 10:14:52 -06:00
check_extable.sh scripts: check_extable: fix typo in user error message 2021-09-08 11:50:28 -07:00
checkdeclares.pl scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
checkincludes.pl
checkkconfigsymbols.py scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
checkpatch.pl Mainly individually changelogged singleton patches. The patch series in 2025-01-26 17:50:53 -08:00
checkstack.pl scripts/checkstack.pl: fix no space expression between sp and offset 2023-12-29 12:22:28 -08:00
checksyscalls.sh checksyscalls: ignore fstat to silence build warning on LoongArch 2023-03-23 17:18:32 -07:00
checktransupdate.py scripts: fix all issues reported by pylint 2024-07-29 15:34:22 -06:00
checkversion.pl scripts: checkversion: modernize linux/version.h search strings 2021-08-05 20:55:39 +09:00
cleanfile
cleanpatch
coccicheck kbuild: change working directory to external module directory with M= 2024-11-28 08:10:23 +09:00
config kconfig: config script: add a little user help 2021-01-04 10:38:11 +09:00
const_structs.checkpatch const_structs.checkpatch: add ctl_table 2024-10-09 13:39:11 +02:00
decode_stacktrace.sh scripts/decode_stacktrace.sh: fix decoding of lines with an additional info 2025-01-12 19:03:34 -08:00
decodecode scripts/decodecode: add support for LoongArch 2023-12-29 12:22:25 -08:00
depmod.sh kbuild: add $(objtree)/ prefix to some in-kernel build artifacts 2024-11-27 09:38:27 +09:00
dev-needs.sh scripts/dev-needs: Add script to list device dependencies 2020-09-04 18:19:37 +02:00
diffconfig scripts: handle BrokenPipeError for python scripts 2023-01-26 12:43:33 +09:00
documentation-file-ref-check scripts: documentation-file-ref-check: fix bpf selftests path 2021-10-26 09:42:29 -06:00
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
extract_xc3028.pl
faddr2line Revert "scripts/faddr2line: Check only two symbols when calculating symbol size" 2024-10-17 15:16:04 -07:00
file-size.sh
find-unused-docs.sh
gcc-x86_32-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-07-29 03:47:00 +09:00
gcc-x86_64-has-stack-protector.sh kbuild: Fix '-S -c' in x86 stack protector scripts 2024-07-29 03:47:00 +09:00
gen-randstruct-seed.sh randstruct: Move seed generation into scripts/basic/ 2022-05-08 01:33:07 -07:00
gen_packed_field_checks.c lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
generate_builtin_ranges.awk kbuild: generate offset range data for builtin modules 2024-09-20 09:21:43 +09:00
generate_initcall_order.pl init: lto: ensure initcall ordering 2021-01-14 08:21:09 -08:00
generate_rust_analyzer.py rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
generate_rust_target.rs kbuild: rust: Enable KASAN support 2024-09-16 18:04:37 +02:00
get_abi.pl scripts/get_abi.pl: ignore some temp files 2024-01-03 14:02:17 -07:00
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 --bug option to print bug reporting info 2024-08-26 16:10:12 -06:00
gfp-translate scripts: fix gfp-translate after ___GFP_*_BITS conversion to an enum 2024-09-01 17:59:01 -07:00
git.orderFile scripts: Introduce a default git.orderFile 2023-12-29 22:25:20 +09:00
head-object-list.txt openrisc: place exception table at the head of vmlinux 2024-12-10 12:04:19 +00:00
headerdep.pl
headers_install.sh m68k: Avoid CONFIG_COLDFIRE switch in uapi header 2024-05-07 08:55:23 +10:00
insert-sys-cert.c
install.sh kbuild: Create INSTALL_PATH directory if it does not exist 2024-07-20 13:34:54 +09:00
jobserver-exec scripts: support GNU make 4.4 in jobserver-exec 2023-01-16 20:15:20 +09:00
kallsyms.c kallsyms: change overflow variable to bool type 2024-09-20 09:21:52 +09:00
Kbuild.include kbuild: add $(objtree)/ prefix to some in-kernel build artifacts 2024-11-27 09:38:27 +09:00
Kconfig.include kbuild: rust: add CONFIG_RUSTC_LLVM_VERSION 2024-10-13 22:22:28 +02:00
kernel-doc scripts/kernel-doc: fix identifier parsing regex 2024-12-30 11:15:10 -07:00
ld-version.sh kbuild: Make ld-version.sh more robust against version string changes 2024-07-15 03:13:32 +09:00
leaking_addresses.pl leaking_addresses: Provide mechanism to scan binary files 2024-02-29 13:38:03 -08:00
Lindent
link-vmlinux.sh kbuild/btf: Propagate CONFIG_WERROR to resolve_btfids 2024-12-10 17:57:42 +01:00
macro_checker.py scripts: add macro_checker script to check unused parameters in macros 2024-09-01 20:43:28 -07:00
make_fit.py scripts/make_fit: Support decomposing DTBs 2024-07-16 01:08:37 +09:00
Makefile Kbuild updates for v6.14 2025-01-31 12:07:07 -08:00
Makefile.asm-headers kbuild: fix rebuild of generic syscall headers 2024-07-18 10:01:55 -07:00
Makefile.autofdo AutoFDO: Enable machine function split optimization for AutoFDO 2024-11-27 09:38:27 +09:00
Makefile.btf kbuild,bpf: Pass make jobs' value to pahole 2024-11-11 20:00:21 -08:00
Makefile.build kbuild: fix Clang LTO with CONFIG_OBJTOOL=n 2025-02-01 04:28:05 +09:00
Makefile.clang sparc/build: Add SPARC target flags for compiling with clang 2024-11-16 09:52:56 +01:00
Makefile.clean kbuild: change working directory to external module directory with M= 2024-11-28 08:10:23 +09:00
Makefile.compiler kbuild: change working directory to external module directory with M= 2024-11-28 08:10:23 +09:00
Makefile.debug kbuild: rust: use -Zdebuginfo-compression 2024-04-02 17:41:22 +02:00
Makefile.defconf kbuild: suppress stdout from merge_config for silent builds 2025-01-10 23:01:21 +09:00
Makefile.dtbinst kbuild: Install dtb files as 0644 in Makefile.dtbinst 2024-06-26 00:18:57 +09:00
Makefile.dtbs kbuild: move non-boot built-in DTBs to .rodata section 2024-09-30 20:42:52 +09:00
Makefile.extrawarn kbuild: Move -Wenum-enum-conversion to W=2 2025-02-07 19:49:07 -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 kbuild: prefix $(srctree)/ to some included Makefiles 2021-03-15 19:20:48 +09:00
Makefile.host kbuild: support building external modules in a separate build directory 2024-11-28 08:11:55 +09:00
Makefile.kasan kbuild: rust: Enable KASAN support 2024-09-16 18:04:37 +02:00
Makefile.kcov kbuild: include scripts/Makefile.* only when relevant CONFIG is enabled 2020-08-10 01:32:59 +09:00
Makefile.kcsan kcsan: Ignore GCC 11+ warnings about TSan runtime support 2021-12-09 16:42:27 -08:00
Makefile.kmsan kmsan: add KMSAN runtime core 2022-10-03 14:03:19 -07:00
Makefile.lib kbuild: fix Clang LTO with CONFIG_OBJTOOL=n 2025-02-01 04:28:05 +09:00
Makefile.modfinal kbuild: re-enable KCSAN for autogenerated *.mod.c intermediaries 2024-11-28 08:11:55 +09:00
Makefile.modinst kbuild: Fix signing issue for external modules 2025-01-18 08:52:09 +09:00
Makefile.modpost modpost: Allow extended modversions without basic MODVERSIONS 2025-01-11 02:36:32 +09:00
Makefile.package kbuild: rpm-pkg: disable kernel-devel package when cross-compiling 2024-10-31 21:40:46 +09:00
Makefile.propeller kbuild: Fix Propeller build option 2024-11-27 09:38:27 +09:00
Makefile.randstruct randstruct: Enable Clang support 2022-05-08 01:33:07 -07:00
Makefile.ubsan ubsan: Reintroduce signed overflow sanitizer 2024-02-20 20:44:49 -08:00
Makefile.userprogs kbuild: support 'userldlibs' syntax 2023-11-01 23:26:01 +09:00
Makefile.vdsoinst more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
Makefile.vmlinux Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
Makefile.vmlinux_o kbuild: generate offset range data for builtin modules 2024-09-20 09:21:43 +09:00
makelst
markup_oops.pl
min-tool-version.sh rust: upgrade to Rust 1.78.0 2024-05-05 20:17:25 +02:00
misc-check kbuild: make W=1 warn files that are tracked but ignored by git 2023-01-22 23:43:33 +09:00
mkcompile_h Revert "kbuild: Make scripts/compile.h when sh != bash" 2022-09-29 04:40:15 +09:00
mksysmap scripts/mksysmap: Fix escape chars '$' 2024-12-28 23:23:52 +09:00
mkuboot.sh
module-common.c kbuild: compile constant module information only once 2024-09-07 17:24:08 +09:00
module.lds.S Modules changes for v6.13-rc1 2024-11-27 10:20:50 -08:00
modules-check.sh kbuild: change module.order to list *.o instead of *.ko 2022-12-14 15:42:40 +09:00
nsdeps scripts/nsdeps: get 'make nsdeps' working again 2024-12-03 08:22:25 -08:00
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 scripts: clean up IA-64 code 2023-12-03 18:51:48 +09:00
recordmcount.h recordmcount: Correct st_shndx handling 2021-06-18 09:09:17 -04:00
recordmcount.pl riscv: remove MCOUNT_NAME workaround 2024-02-22 15:38:54 -08:00
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 selinux: move genheaders to security/selinux/ 2024-10-03 16:07:51 -04:00
rust_is_available.sh rust: document bindgen 0.71.0 regression 2025-01-10 00:17:00 +01:00
rust_is_available_bindgen_0_66.h rust: warn about bindgen versions 0.66.0 and 0.66.1 2024-07-10 10:28:52 +02:00
rust_is_available_bindgen_libclang.h scripts: add rust_is_available.sh 2022-09-28 09:02:06 +02:00
rust_is_available_bindgen_libclang_concat.h rust: warn on bindgen < 0.69.5 and libclang >= 19.1 2024-11-12 21:26:54 +01:00
rust_is_available_test.py rust: warn on bindgen < 0.69.5 and libclang >= 19.1 2024-11-12 21:26:54 +01:00
rustc-llvm-version.sh kbuild: rust: avoid errors with old rustcs without LLVM patch version 2024-10-28 00:27:16 +01:00
rustc-version.sh kbuild: rust: add CONFIG_RUSTC_VERSION 2024-09-05 22:44:18 +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 setlocalversion: add -e option 2024-11-28 08:11:56 +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,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
sorttable.c scripts/sorttable: Use a structure of function pointers for elf helpers 2025-01-10 07:59:04 -05:00
spdxcheck-test.sh docs: move Linux logo into a new images folder 2022-06-01 09:32:45 -06:00
spdxcheck.py scripts/spdxcheck: Handle license identifiers in Jinja comments 2025-01-08 15:38:33 +01:00
spdxexclude scripts/spdxcheck: Exclude top-level README 2022-05-18 15:35:42 +02:00
spelling.txt kernel-wide: add explicity||explicitly to spelling.txt 2025-01-12 20:21:06 -08:00
sphinx-pre-install scripts: sphinx-pre-install: remove unnecessary double check for $cur_version 2024-09-05 14:32:36 -06:00
split-man.pl tweewide: Fix most Shebang lines 2020-12-08 23:30:04 +09:00
ssl-common.h sign-file,extract-cert: avoid using deprecated ERR_get_error_line() 2024-09-20 19:49:52 +03:00
stackdelta
stackusage
subarch.include scripts: subarch.include: fix SUBARCH on macOS hosts 2024-09-10 13:56:37 +09:00
syscall.tbl fs/xattr: add *at family syscalls 2024-11-06 12:59:44 -05:00
syscallhdr.sh scripts: check duplicated syscall number in syscall table 2021-07-09 04:00:39 +09:00
syscallnr.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
syscalltbl.sh x86/syscall: Mark exit[_group] syscall handlers __noreturn 2024-06-28 15:23:38 +02:00
tags.sh Char/Misc/IIO driver updates for 6.14-rc1 2025-01-27 16:51:51 -08:00
tools-support-relr.sh Makefile: use -z pack-relative-relocs 2023-04-17 11:23:06 +09:00
unifdef.c scripts/unifdef: avoid constexpr keyword 2024-04-23 00:09:41 +09:00
ver_linux Removed the oprofiled version option 2021-05-03 17:23:06 -06:00
verify_builtin_ranges.awk scripts: add verifier script for builtin module range data 2024-09-20 09:21:52 +09:00
xen-hypercalls.sh scripts: make some scripts executable 2021-08-10 09:13:25 +09:00
xz_wrap.sh xz: adjust arch-specific options for better kernel compression 2024-09-01 20:43:27 -07:00