From: Nick Desaulniers <ndesaulniers@google.com>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
Michal Marek <michal.lkml@markovi.net>
Subject: Re: [PATCH v2 10/26] modpost: move static EXPORT_SYMBOL check to check_exports()
Date: Tue, 3 May 2022 14:54:51 -0700 [thread overview]
Message-ID: <CAKwvOd=JAhex+9fM7jrMJwrBkvwewnUrh_sUZk6Re=VY+P+Bow@mail.gmail.com> (raw)
In-Reply-To: <20220501084032.1025918-11-masahiroy@kernel.org>
On Sun, May 1, 2022 at 1:42 AM Masahiro Yamada <masahiroy@kernel.org> wrote:
>
> Now that struct module has a list of symbols it exports, this check
> can go into check_exports(). The code becomes shorter.
>
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Thanks for the patch!
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
> ---
>
> (no changes since v1)
>
> scripts/mod/modpost.c | 17 ++++++-----------
> 1 file changed, 6 insertions(+), 11 deletions(-)
>
> diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
> index cd49ef7b5953..4ce8d164b8e0 100644
> --- a/scripts/mod/modpost.c
> +++ b/scripts/mod/modpost.c
> @@ -2199,6 +2199,12 @@ static void check_exports(struct module *mod)
> if (!mod->is_gpl_compatible)
> check_for_gpl_usage(exp->export, basename, exp->name);
> }
> +
> + list_for_each_entry(s, &mod->exported_symbols, list) {
> + if (s->is_static)
> + error("\"%s\" [%s] is a static %s\n",
> + s->name, mod->name, export_str(s->export));
> + }
> }
>
> static void check_modname_len(struct module *mod)
> @@ -2510,7 +2516,6 @@ int main(int argc, char **argv)
> char *missing_namespace_deps = NULL;
> char *dump_write = NULL, *files_source = NULL;
> int opt;
> - int n;
> LIST_HEAD(dump_lists);
> struct dump_list *dl, *dl2;
>
> @@ -2606,16 +2611,6 @@ int main(int argc, char **argv)
> if (sec_mismatch_count && !sec_mismatch_warn_only)
> error("Section mismatches detected.\n"
> "Set CONFIG_SECTION_MISMATCH_WARN_ONLY=y to allow them.\n");
> - for (n = 0; n < SYMBOL_HASH_SIZE; n++) {
> - struct symbol *s;
> -
> - for (s = symbolhash[n]; s; s = s->next) {
> - if (s->is_static)
> - error("\"%s\" [%s] is a static %s\n",
> - s->name, s->module->name,
> - export_str(s->export));
> - }
> - }
>
> if (nr_unresolved > MAX_UNRESOLVED_REPORTS)
> warn("suppressed %u unresolved symbol warnings because there were too many)\n",
> --
> 2.32.0
>
--
Thanks,
~Nick Desaulniers
next prev parent reply other threads:[~2022-05-03 21:55 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-01 8:40 [PATCH v2 00/26] kbuild: yet another series of cleanups (modpost and LTO) Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 01/26] modpost: use bool type where appropriate Masahiro Yamada
2022-05-03 21:43 ` Nick Desaulniers
2022-05-04 5:47 ` Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 02/26] modpost: change mod->gpl_compatible to bool type Masahiro Yamada
2022-05-03 21:45 ` Nick Desaulniers
2022-05-01 8:40 ` [PATCH v2 03/26] modpost: import include/linux/list.h Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 04/26] modpost: traverse modules in order Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 05/26] modpost: add sym_add_unresolved() helper Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 06/26] modpost: traverse unresolved symbols in order Masahiro Yamada
2022-05-03 21:49 ` Nick Desaulniers
2022-05-01 8:40 ` [PATCH v2 07/26] modpost: use doubly linked list for dump_lists Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 08/26] modpost: traverse the namespace_list in order Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 09/26] modpost: dump Module.symvers in the same order of modules.order Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 10/26] modpost: move static EXPORT_SYMBOL check to check_exports() Masahiro Yamada
2022-05-03 21:54 ` Nick Desaulniers [this message]
2022-05-01 8:40 ` [PATCH v2 11/26] modpost: make multiple export error Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 12/26] modpost: make sym_add_exported() always allocate a new symbol Masahiro Yamada
2022-05-03 21:56 ` Nick Desaulniers
2022-05-01 8:40 ` [PATCH v2 13/26] modpost: split new_symbol() to symbol allocation and hash table addition Masahiro Yamada
2022-05-03 22:00 ` Nick Desaulniers
2022-05-01 8:40 ` [PATCH v2 14/26] modpost: mitigate false-negatives for static EXPORT_SYMBOL checks Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 15/26] kbuild: record symbol versions in *.cmd files Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 16/26] kbuild: generate a list of objects in vmlinux Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 17/26] modpost: extract symbol versions from *.cmd files Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 18/26] modpost: generate linker script to collect symbol versions Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 19/26] kbuild: embed symbol versions at final link of vmlinux or modules Masahiro Yamada
2022-05-03 2:55 ` Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 20/26] kbuild: stop merging *.symversions Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 21/26] genksyms: adjust the output format for .cmd files Masahiro Yamada
2022-05-04 20:22 ` Nicolas Schier
2022-05-05 13:47 ` Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 22/26] kbuild: do not create *.prelink.o for Clang LTO or IBT Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 23/26] kbuild: make built-in.a rule robust against too long argument error Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 24/26] kbuild: make *.mod " Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 25/26] modpost: simplify the ->is_static initialization Masahiro Yamada
2022-05-01 8:40 ` [PATCH v2 26/26] modpost: use hlist for hash table implementation Masahiro Yamada
2022-05-01 12:23 ` [PATCH v2 00/26] kbuild: yet another series of cleanups (modpost and LTO) Masahiro Yamada
2022-05-05 6:55 ` Masahiro Yamada
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