From 7ce3e410e0188ce7ca65b49c90cff2863d6e232e Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 5 Apr 2022 20:33:51 +0900 Subject: modpost: remove useless export_from_sec() With commit 1743694eb235 ("modpost: stop symbol preloading for modversion CRC") applied, now export_from_sec() is useless. handle_symbol() is called for every symbol in the ELF. When 'symname' does not start with "__ksymtab", export_from_sec() is called, and the returned value is stored in 'export'. It is used in the last part of handle_symbol(): if (strstarts(symname, "__ksymtab_")) { name = symname + strlen("__ksymtab_"); sym_add_exported(name, mod, export); } 'export' is used only when 'symname' starts with "__ksymtab_". So, the value returned by export_from_sec() is never used. Remove useless export_from_sec(). This makes further cleanups possible. I put the temporary code: export = export_unknown; Otherwise, I would get the compiler warning: warning: 'export' may be used uninitialized in this function [-Wmaybe-uninitialized] This is apparently false positive because if (strstarts(symname, "__ksymtab_") ... is a stronger condition than: if (strstarts(symname, "__ksymtab") Anyway, this part will be cleaned up by the next commit. Signed-off-by: Masahiro Yamada Reviewed-by: Nick Desaulniers --- scripts/mod/modpost.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'scripts/mod/modpost.h') diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 0c47ff95c0e2..0a940fd2e5c7 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -138,8 +138,6 @@ struct elf_info { Elf_Shdr *sechdrs; Elf_Sym *symtab_start; Elf_Sym *symtab_stop; - Elf_Section export_sec; - Elf_Section export_gpl_sec; char *strtab; char *modinfo; unsigned int modinfo_len; -- cgit