From cdd66eb52fdaa9bdab7f1be8dc9162bf4acc64ae Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 5 May 2022 12:52:11 +0900 Subject: [PATCH] module: do not binary-search in __ksymtab_gpl if fsa->gplok is false Currently, !fsa->gplok && syms->license == GPL_ONLY) is checked after bsearch() succeeds. It is meaningless to do the binary search in the GPL symbol table when fsa->gplok is false because we know find_exported_symbol_in_section() will fail anyway. This check should be done before bsearch(). Signed-off-by: Masahiro Yamada Signed-off-by: Luis Chamberlain --- kernel/module/main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/module/main.c b/kernel/module/main.c index d00a8de..8a068ff 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -247,8 +247,6 @@ static bool check_exported_symbol(const struct symsearch *syms, struct module *owner, unsigned int symnum, struct find_symbol_arg *fsa) { - if (!fsa->gplok && syms->license == GPL_ONLY) - return false; fsa->owner = owner; fsa->crc = symversion(syms->crcs, symnum); fsa->sym = &syms->start[symnum]; @@ -287,6 +285,9 @@ static bool find_exported_symbol_in_section(const struct symsearch *syms, { struct kernel_symbol *sym; + if (!fsa->gplok && syms->license == GPL_ONLY) + return false; + sym = bsearch(fsa->name, syms->start, syms->stop - syms->start, sizeof(struct kernel_symbol), cmp_name); -- 2.7.4