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authorMasahiro Yamada <masahiroy@kernel.org>2022-05-05 12:52:11 +0900
committerLuis Chamberlain <mcgrof@kernel.org>2022-05-12 10:29:41 -0700
commitcdd66eb52fdaa9bdab7f1be8dc9162bf4acc64ae (patch)
tree47bff8f5ca3ca2889c69b29c557fc39e486fd1f8 /kernel/module/main.c
parentc6eee9df57a6d9252bae93a9386d0d872798f5d5 (diff)
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 <masahiroy@kernel.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Diffstat (limited to 'kernel/module/main.c')
-rw-r--r--kernel/module/main.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/module/main.c b/kernel/module/main.c
index d00a8de6d8f5..8a068fff437c 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);