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| author | Masahiro Yamada <masahiroy@kernel.org> | 2023-06-06 11:41:59 +0200 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2023-06-07 15:41:08 +0200 |
| commit | 20ff36856fe00879f82de71fe6f1482ca1b72334 (patch) | |
| tree | 663915b917dc9bed51678c028f89ffacc37457c4 /scripts | |
| parent | initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP (diff) | |
| download | linux-20ff36856fe00879f82de71fe6f1482ca1b72334.tar.xz linux-20ff36856fe00879f82de71fe6f1482ca1b72334.zip | |
modpost: propagate W=1 build option to modpost
"No build warning" is a strong requirement these days, so you must fix
all issues before enabling a new warning flag.
We often add a new warning to W=1 first so that the kbuild test robot
blocks new breakages.
This commit allows modpost to show extra warnings only when W=1
(or KBUILD_EXTRA_WARN=1) is given.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.modpost | 1 | ||||
| -rw-r--r-- | scripts/mod/modpost.c | 7 |
2 files changed, 7 insertions, 1 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 0980c58d8afc..074e27c0c140 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -47,6 +47,7 @@ modpost-args = \ $(if $(KBUILD_MODPOST_WARN),-w) \ $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \ $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ + $(if $(findstring 1, $(KBUILD_EXTRA_WARN)),-W) \ -o $@ modpost-deps := $(MODPOST) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index d10f5bdcb753..3ea5eb2b1029 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -42,6 +42,8 @@ static bool allow_missing_ns_imports; static bool error_occurred; +static bool extra_warn; + /* * Cut off the warnings when there are too many. This typically occurs when * vmlinux is missing. ('make modules' without building vmlinux.) @@ -2199,7 +2201,7 @@ int main(int argc, char **argv) LIST_HEAD(dump_lists); struct dump_list *dl, *dl2; - while ((opt = getopt(argc, argv, "ei:mnT:o:awENd:")) != -1) { + while ((opt = getopt(argc, argv, "ei:mnT:o:aWwENd:")) != -1) { switch (opt) { case 'e': external_module = true; @@ -2224,6 +2226,9 @@ int main(int argc, char **argv) case 'T': files_source = optarg; break; + case 'W': + extra_warn = true; + break; case 'w': warn_unresolved = true; break; |