linux/tools
David Vernet 6aed15e330 selftests/bpf: Add testcase for static kfunc with unused arg
kfuncs are allowed to be static, or not use one or more of their
arguments. For example, bpf_xdp_metadata_rx_hash() in net/core/xdp.c is
meant to be implemented by drivers, with the default implementation just
returning -EOPNOTSUPP. As described in [0], such kfuncs can have their
arguments elided, which can cause BTF encoding to be skipped. The new
__bpf_kfunc macro should address this, and this patch adds a selftest
which verifies that a static kfunc with at least one unused argument can
still be encoded and invoked by a BPF program.

Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230201173016.342758-5-void@manifault.com
2023-02-02 00:25:14 +01:00
..
accounting tools/accounting/procacct: remove some unused variables 2022-11-18 13:55:09 -08:00
arch tools headers arm64: Sync arm64's cputype.h with the kernel sources 2023-01-18 10:07:42 -03:00
bootconfig
bpf tools/resolve_btfids: Alter how HOSTCC is forced 2023-01-25 18:28:14 +01:00
build
certs
cgroup
counter
debugging
edid
firewire
firmware
gpio
hv
iio
include bpf-next-for-netdev 2023-01-28 00:00:14 -08:00
io_uring
kvm/kvm_stat
laptop
leds
lib libbpf: Fix BPF_PROBE_READ{_STR}_INTO() on s390x 2023-01-28 12:45:14 -08:00
memory-model
net/ynl tools: ynl: store ops in ordered dict to avoid random ordering 2023-01-26 16:32:41 -08:00
objtool objtool: Tolerate STT_NOTYPE symbols at end of section 2023-01-09 17:53:46 +01:00
pci
pcmcia
perf perf test build-id: Fix test check for PE file 2023-01-18 10:52:06 -03:00
power ACPI updates for 6.2-rc1 2022-12-12 13:38:17 -08:00
rcu
scripts
spi
testing selftests/bpf: Add testcase for static kfunc with unused arg 2023-02-02 00:25:14 +01:00
thermal
time
tracing rtla: Fix exit status when returning from calls to usage() 2022-12-09 18:06:24 -05:00
usb
verification Tracing fix for 6.2: 2022-12-21 19:03:42 -08:00
virtio tools/virtio: remove smp_read_barrier_depends() 2022-12-28 05:28:11 -05:00
vm MM patches for 6.2-rc1. 2022-12-13 19:29:45 -08:00
wmi
Makefile