YiFei Zhu 43745d11bf bpftool: Fix regression of "bpftool cgroup tree" EINVAL on older kernels ... If cgroup_has_attached_progs queries an attach type not supported by the running kernel, due to the kernel being older than the bpftool build, it would encounter an -EINVAL from BPF_PROG_QUERY syscall. Prior to commit 98b303c9bf ("bpftool: Query only cgroup-related attach types"), this EINVAL would be ignored by the function, allowing the function to only consider supported attach types. The commit changed so that, instead of querying all attach types, only attach types from the array `cgroup_attach_types` is queried. The assumption is that because these are only cgroup attach types, they should all be supported. Unfortunately this assumption may be false when the kernel is older than the bpftool build, where the attach types queried by bpftool is not yet implemented in the kernel. This would result in errors such as: $ bpftool cgroup tree CgroupPath ID AttachType AttachFlags Name Error: can't query bpf programs attached to /sys/fs/cgroup: Invalid argument This patch restores the logic of ignoring EINVAL from prior to that patch. Fixes: 98b303c9bf ("bpftool: Query only cgroup-related attach types") Reported-by: Sagarika Sharma <sharmasagarika@google.com> Reported-by: Minh-Anh Nguyen <minhanhdn@google.com> Signed-off-by: YiFei Zhu <zhuyifei@google.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/bpf/20250428211536.1651456-1-zhuyifei@google.com		2025-05-06 13:53:55 -07:00
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accounting
arch	x86/insn: Fix CTEST instruction decoding	2025-04-24 20:19:17 +02:00
bootconfig
bpf	bpftool: Fix regression of "bpftool cgroup tree" EINVAL on older kernels	2025-05-06 13:53:55 -07:00
build	perf tools changes for v6.15	2025-03-31 08:52:33 -07:00
certs
cgroup
counter
crypto
debugging
firewire
firmware
gpio
hv
iio
include	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc3	2025-04-21 08:04:38 -07:00
kvm/kvm_stat
laptop
leds
lib	libbpf: Improve BTF dedup handling of "identical" BTF types	2025-05-05 14:51:47 -07:00
memory-model
mm
net	tools: ynl-gen: make sure we validate subtype of array-nest	2025-04-16 18:09:41 -07:00
objtool	Rust fixes for v6.15	2025-04-19 10:02:43 -07:00
pcmcia
perf	perf tools: Remove evsel__handle_error_quirks()	2025-04-11 09:22:49 -07:00
power	Turbostat 2025.05.06	2025-04-06 12:32:43 -07:00
rcu
sched_ext	sched_ext: Mark SCX_OPS_HAS_CGROUP_WEIGHT for deprecation	2025-04-08 08:53:52 -10:00
scripts	tools headers: Update the syscall table with the kernel sources	2025-04-10 09:28:24 -07:00
sound
spi
testing	selftests/bpf: Add test for bpf_list_{front,back}	2025-05-06 10:21:06 -07:00
thermal
time
tracing	tracing tooling updates for 6.15:	2025-03-27 17:03:01 -07:00
usb
verification	tracing tooling updates for 6.15:	2025-03-27 17:03:01 -07:00
virtio
wmi
workqueue
writeback
Makefile