[ Upstream commit 1fcd0eb356ad56c4e405f06e31dd9fde2109d5ab ]
Define __NR_pidfd_send_signal if it isn't to prevent a potential compilation error.
To make pidfd-test compile on all arches, irrespective of whether or not syscall numbers are assigned, define the syscall number to -1. If it isn't defined this will cause the kernel to return -ENOSYS.
Fixes: 575a0ae9744d ("selftests: add tests for pidfd_send_signal()") Signed-off-by: Christian Brauner christian@brauner.io Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/pidfd/pidfd_test.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c index d59378a93782..20323f55613a 100644 --- a/tools/testing/selftests/pidfd/pidfd_test.c +++ b/tools/testing/selftests/pidfd/pidfd_test.c @@ -16,6 +16,10 @@
#include "../kselftest.h"
+#ifndef __NR_pidfd_send_signal +#define __NR_pidfd_send_signal -1 +#endif + static inline int sys_pidfd_send_signal(int pidfd, int sig, siginfo_t *info, unsigned int flags) {