linux-kernel - [PATCH v2 04/10] modpost: move export_from

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Date:   Tue,  5 Apr 2022 23:02:23 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Masahiro Yamada <masahiroy@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>
Subject: [PATCH v2 04/10] modpost: move export_from_secname() call to more relevant place

The assigned 'export' is only used when

    if (strstarts(symname, "__ksymtab_"))

is met. The else-part of the assignment is the dead code.

Move the export_from_secname() call to where it is used.

Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
---

(no changes since v1)

 scripts/mod/modpost.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index eebb32689816..f9e54247ae1d 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -684,14 +684,8 @@ static void handle_modversion(const struct module *mod,
 static void handle_symbol(struct module *mod, struct elf_info *info,
 			  const Elf_Sym *sym, const char *symname)
 {
-	enum export export;
 	const char *name;
 
-	if (strstarts(symname, "__ksymtab"))
-		export = export_from_secname(info, get_secindex(info, sym));
-	else
-		export = export_unknown;
-
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
 		if (strstarts(symname, "__gnu_lto_")) {
@@ -726,7 +720,11 @@ static void handle_symbol(struct module *mod, struct elf_info *info,
 	default:
 		/* All exported symbols */
 		if (strstarts(symname, "__ksymtab_")) {
+			enum export export;
+
 			name = symname + strlen("__ksymtab_");
+			export = export_from_secname(info,
+						     get_secindex(info, sym));
 			sym_add_exported(name, mod, export);
 		}
 		if (strcmp(symname, "init_module") == 0)
-- 
2.32.0