Mykyta Yatsenko 786bf0e7e2 bpf: improve error message for unsupported helper ... BPF verifier emits "unknown func" message when given BPF program type does not support BPF helper. This message may be confusing for users, as important context that helper is unknown only to current program type is not provided. This patch changes message to "program of this type cannot use helper " and aligns dependent code in libbpf and tests. Any suggestions on improving/changing this message are welcome. Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com> Acked-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/r/20240325152210.377548-1-yatsenko@meta.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2024-03-28 18:30:53 -07:00
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preload	bpf: make preloaded map iterators to display map elements count	2023-07-06 12:42:25 -07:00
arena.c	bpf: Clarify bpf_arena comments.	2024-03-15 14:23:45 -07:00
arraymap.c	bpf: Consistently use BPF token throughout BPF verifier logic	2024-01-24 16:21:01 -08:00
bloom_filter.c	bpf: Check bloom filter map value size	2024-03-27 09:56:17 -07:00
bpf_cgrp_storage.c	bpf: Enable bpf_cgrp_storage for cgroup1 non-attach case	2023-12-08 17:08:18 -08:00
bpf_inode_storage.c
bpf_iter.c	bpf: move sleepable flag from bpf_prog_aux to bpf_prog	2024-03-11 16:41:25 -07:00
bpf_local_storage.c	bpf: Allow compiler to inline most of bpf_local_storage_lookup()	2024-02-11 14:06:24 -08:00
bpf_lru_list.c
bpf_lru_list.h	bpf: lru: Remove unused declaration bpf_lru_promote()	2023-08-08 17:21:42 -07:00
bpf_lsm.c	bpf: Minor clean-up to sleepable_lsm_hooks BTF set	2024-02-01 18:37:45 +01:00
bpf_struct_ops.c	bpf: Check return from set_memory_rox()	2024-03-18 14:18:47 -07:00
bpf_task_storage.c
btf.c	bpf: Recognize btf_decl_tag("arg: Arena") as PTR_TO_ARENA.	2024-03-11 15:37:24 -07:00
cgroup.c	bpf: Allow helper bpf_get_[ns_]current_pid_tgid() for all prog types	2024-03-19 14:24:07 -07:00
cgroup_iter.c	bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg	2023-11-07 15:24:25 -08:00
core.c	bpf: Check return from set_memory_rox()	2024-03-18 14:18:47 -07:00
cpumap.c	bpf: report RCU QS in cpumap kthread	2024-03-20 21:05:43 -07:00
cpumask.c	bpf: treewide: Annotate BPF kfuncs in BTF	2024-01-31 20:40:56 -08:00
devmap.c	bpf: Fix DEVMAP_HASH overflow check on 32-bit arches	2024-03-07 20:02:38 -08:00
disasm.c	bpf: Disasm support for addr_space_cast instruction.	2024-03-11 15:37:24 -07:00
disasm.h
dispatcher.c	bpf: Use arch_bpf_trampoline_size	2023-12-06 17:17:20 -08:00
hashtab.c	bpf: Fix hashtab overflow check on 32-bit arches	2024-03-07 20:05:56 -08:00
helpers.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2024-03-28 17:25:57 -07:00
inode.c	bpf: Support symbolic BPF FS delegation mount options	2024-01-24 16:21:02 -08:00
Kconfig	bpf: Merge two CONFIG_BPF entries	2024-02-07 16:38:20 -08:00
link_iter.c
local_storage.c
log.c	bpf: Recognize addr_space_cast instruction in the verifier.	2024-03-11 15:37:24 -07:00
lpm_trie.c	bpf/lpm_trie: Inline longest_prefix_match for fastpath	2024-03-19 13:46:03 +01:00
Makefile	bpf: Introduce bpf_arena.	2024-03-11 15:37:23 -07:00
map_in_map.c	bpf: Optimize the free of inner map	2023-12-04 17:50:26 -08:00
map_in_map.h	bpf: Add map and need_defer parameters to .map_fd_put_ptr()	2023-12-04 17:50:26 -08:00
map_iter.c	bpf: treewide: Annotate BPF kfuncs in BTF	2024-01-31 20:40:56 -08:00
memalloc.c	bpf: Remove unnecessary cpu == 0 check in memalloc	2024-01-04 10:18:14 -08:00
mmap_unlock_work.h
mprog.c	bpf: Handle bpf_mprog_query with NULL entry	2023-10-06 17:11:20 -07:00
net_namespace.c
offload.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2023-09-21 21:49:45 +02:00
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c	bpf: Avoid deadlock when using queue and stack maps from NMI	2023-09-11 19:04:49 -07:00
reuseport_array.c
ringbuf.c	bpf: Fold smp_mb__before_atomic() into atomic_set_release()	2023-10-24 14:26:07 +02:00
stackmap.c	bpf: Fix stackmap overflow check on 32-bit arches	2024-03-07 20:06:25 -08:00
syscall.c	bpf: support BPF cookie in raw tracepoint (raw_tp, tp_btf) programs	2024-03-19 23:05:34 -07:00
sysfs_btf.c
task_iter.c	bpf: Fix an issue due to uninitialized bpf_iter_task	2024-02-19 12:28:15 +01:00
tcx.c	bpf, tcx: Get rid of tcx_link_const	2023-10-23 15:01:53 -07:00
tnum.c	bpf: simplify tnum output if a fully known constant	2023-12-02 11:36:51 -08:00
token.c	bpf,token: Use BIT_ULL() to convert the bit mask	2024-01-29 20:04:55 -08:00
trampoline.c	bpf: Check return from set_memory_rox()	2024-03-18 14:18:47 -07:00
verifier.c	bpf: improve error message for unsupported helper	2024-03-28 18:30:53 -07:00