tests: fix pidfd-test compilation
authorChristian Brauner <christian@brauner.io>
Wed, 5 Jun 2019 13:06:32 +0000 (15:06 +0200)
committerChristian Brauner <christian@brauner.io>
Wed, 5 Jun 2019 13:06:32 +0000 (15:06 +0200)
commit1fcd0eb356ad56c4e405f06e31dd9fde2109d5ab
tree9875ba966c5b62651c1bb1a42b96efe453897cf9
parentc732327f04a3818f35fa97d07b1d64d31b691d78
tests: fix pidfd-test compilation

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>
tools/testing/selftests/pidfd/pidfd_test.c