selftests/bpf: Select CONFIG_FUNCTION_ERROR_INJECTION

[ Upstream commit a8dfde09c90109e3a98af54847e91bde7dc2d5c2 ]

BPF selftests require CONFIG_FUNCTION_ERROR_INJECTION to work. However,
CONFIG_FUNCTION_ERROR_INJECTION is no longer 'y' by default after recent
changes. As a result, we are seeing errors like the following from BPF CI:

   bpf_testmod_test_read() is not modifiable
   __x64_sys_setdomainname is not sleepable
   __x64_sys_getpgid is not sleepable

Fix this by explicitly selecting CONFIG_FUNCTION_ERROR_INJECTION in the
selftest config.

Fixes: a4412fdd49dc ("error-injection: Add prompt for function error injection")
Reported-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Müller <deso@posteo.net>
Link: https://lore.kernel.org/bpf/20221213220500.3427947-1-song@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config
index 9213565..59cec42 100644 (file)
--- a/tools/testing/selftests/bpf/config
+++ b/tools/testing/selftests/bpf/config
@@ -13,6 +13,7 @@ CONFIG_CRYPTO_USER_API_HASH=y
 CONFIG_DYNAMIC_FTRACE=y
 CONFIG_FPROBE=y
 CONFIG_FTRACE_SYSCALLS=y
+CONFIG_FUNCTION_ERROR_INJECTION=y
 CONFIG_FUNCTION_TRACER=y
 CONFIG_GENEVE=y
 CONFIG_IKCONFIG=y