[PATCH 5.16 0481/1017] selftests/bpf: Use "__se_" prefix on architectures without syscall wrapper

From: Greg Kroah-Hartman
Date: Tue Apr 05 2022 - 08:34:42 EST

From: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>

[ Upstream commit 046b841ea7c528931e7d2e74d5e668aa6c94c1fc ]

On architectures that don't use a syscall wrapper, sys_* function names
are set as an alias of __se_sys_* functions. Due to this, there is no
BTF associated with sys_* function names. This results in some of the
test progs failing to load. Set the SYS_PREFIX to "__se_" to fix this

Fixes: 38261f369fb905 ("selftests/bpf: Fix probe_user test failure with clang build kernel")
Signed-off-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
Link: https://lore.kernel.org/bpf/013d632aacd3e41290445c0025db6a7055ec6e18.1643973917.git.naveen.n.rao@xxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
tools/testing/selftests/bpf/progs/bpf_misc.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/bpf_misc.h b/tools/testing/selftests/bpf/progs/bpf_misc.h
index 0b78bc9b1b4c..5bb11fe595a4 100644
--- a/tools/testing/selftests/bpf/progs/bpf_misc.h
+++ b/tools/testing/selftests/bpf/progs/bpf_misc.h
@@ -13,7 +13,7 @@
#define SYS_PREFIX "__arm64_"
-#define SYS_PREFIX ""
+#define SYS_PREFIX "__se_"