From: Dmitrii Banshchikov <me@ubique.spb.ru> mainline inclusion from mainline-5.12-rc3 commit c41d81bfbb4579c3e583457e383dd63d026bf947 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------------- Add an explicit 'const void *' cast to pass program ctx pointer type into a global function that expects pointer to structure. warning: incompatible pointer types passing 'struct __sk_buff *' to parameter of type 'const struct S *' [-Wincompatible-pointer-types] return foo(skb); ^~~ progs/test_global_func11.c:10:36: note: passing argument to parameter 's' here __noinline int foo(const struct S *s) ^ Fixes: 8b08807d039a ("selftests/bpf: Add unit tests for pointers in global functions") Signed-off-by: Dmitrii Banshchikov <me@ubique.spb.ru> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20210223082211.302596-1-me@ubique.spb.ru (cherry picked from commit c41d81bfbb4579c3e583457e383dd63d026bf947) Signed-off-by: Wang Yufen <wangyufen@huawei.com> --- tools/testing/selftests/bpf/progs/test_global_func11.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/progs/test_global_func11.c b/tools/testing/selftests/bpf/progs/test_global_func11.c index 28488047c849..ef5277d982d9 100644 --- a/tools/testing/selftests/bpf/progs/test_global_func11.c +++ b/tools/testing/selftests/bpf/progs/test_global_func11.c @@ -15,5 +15,5 @@ __noinline int foo(const struct S *s) SEC("cgroup_skb/ingress") int test_cls(struct __sk_buff *skb) { - return foo(skb); + return foo((const void *)skb); } -- 2.20.1