mirror/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Files
161fca7e3e905d5e99dbd79ed55d9212e6d80eb0
linux/kernel/bpf
History
SeongJae Park 3de4d22cc9 bpf, btf: Warn but return no error for NULL btf from __register_btf_kfunc_id_set() 
__register_btf_kfunc_id_set() assumes .BTF to be part of the module's .ko
file if CONFIG_DEBUG_INFO_BTF is enabled. If that's not the case, the
function prints an error message and return an error. As a result, such
modules cannot be loaded.

However, the section could be stripped out during a build process. It would
be better to let the modules loaded, because their basic functionalities
have no problem [0], though the BTF functionalities will not be supported.
Make the function to lower the level of the message from error to warn, and
return no error.

  [0] https://lore.kernel.org/bpf/20220219082037.ow2kbq5brktf4f2u@apollo.legion

Fixes: c446fdacb1 ("bpf: fix register_btf_kfunc_id_set for !CONFIG_DEBUG_INFO_BTF")
Reported-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com>
Suggested-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/87y228q66f.fsf@oc8242746057.ibm.com
Link: https://lore.kernel.org/bpf/20220219082037.ow2kbq5brktf4f2u@apollo.legion
Link: https://lore.kernel.org/bpf/20230701171447.56464-1-sj@kernel.org
2023-07-03 18:48:09 +02:00
..
preload
bpf: Replace all non-returning strlcpy with strscpy
2023-05-31 13:04:20 +02:00
arraymap.c
bpf: return long from bpf_map_ops funcs
2023-03-22 15:11:30 -07:00
bloom_filter.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
bpf_cgrp_storage.c
bpf: Teach verifier that certain helpers accept NULL pointer.
2023-04-04 16:57:16 -07:00
bpf_inode_storage.c
Merge tag 'net-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2023-04-26 16:07:23 -07:00
bpf_iter.c
bpf: implement numbers iterator
2023-03-08 16:19:51 -08:00
bpf_local_storage.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
bpf_lru_list.c
bpf: Address KCSAN report on bpf_lru_list
2023-05-12 12:01:03 -07:00
bpf_lru_list.h
bpf: Address KCSAN report on bpf_lru_list
2023-05-12 12:01:03 -07:00
bpf_lsm.c
bpf: Fix the kernel crash caused by bpf_setsockopt().
2023-01-26 23:26:40 -08:00
bpf_struct_ops_types.h
bpf: Add dummy BPF STRUCT_OPS for test purpose
2021-11-01 14:10:00 -07:00
bpf_struct_ops.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
bpf_task_storage.c
bpf: Teach verifier that certain helpers accept NULL pointer.
2023-04-04 16:57:16 -07:00
btf.c
bpf, btf: Warn but return no error for NULL btf from __register_btf_kfunc_id_set()
2023-07-03 18:48:09 +02:00
cgroup_iter.c
cgroup: bpf: use cgroup_lock()/cgroup_unlock() wrappers
2023-03-17 12:07:13 -10:00
cgroup.c
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2023-05-16 19:50:05 -07:00
core.c
bpf: Hide unused bpf_patch_call_args
2023-06-12 19:00:08 +02:00
cpumap.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
cpumask.c
bpf: Replace bpf_cpumask_any* with bpf_cpumask_any_distribute*
2023-06-12 15:09:11 -07:00
devmap.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
disasm.c
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
disasm.h
bpf: Relicense disassembler as GPL-2.0-only OR BSD-2-Clause
2021-09-02 14:49:23 +02:00
dispatcher.c
bpf: Synchronize dispatcher update with bpf_dispatcher_xdp_func
2022-12-14 12:02:14 -08:00
hashtab.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
helpers.c
bpf: Make bpf_refcount_acquire fallible for non-owning refs
2023-06-05 13:17:20 -07:00
inode.c
bpf: Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands
2023-05-23 23:31:42 +02:00
Kconfig
rcu: Make the TASKS_RCU Kconfig option be selected
2022-04-20 16:52:58 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
Merge tag 'cgroup-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2023-04-29 10:05:22 -07:00
log.c
bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log
2023-05-16 22:34:50 -07:00
lpm_trie.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
Makefile
bpf: Split off basic BPF verifier log into separate file
2023-04-11 18:05:42 +02:00
map_in_map.c
bpf: Fix elem_size not being set for inner maps
2023-06-02 16:22:12 -07:00
map_in_map.h
…
map_iter.c
bpf: Introduce MEM_RDONLY flag
2021-12-18 13:27:41 -08:00
memalloc.c
bpf: Factor out a common helper free_all()
2023-06-06 13:40:07 -07:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
offload.c
bpf: netdev: init the offload table earlier
2023-05-15 07:07:41 -07:00
percpu_freelist.c
bpf: Initialize same number of free nodes for each pcpu_freelist
2022-11-11 12:05:14 -08:00
percpu_freelist.h
…
prog_iter.c
…
queue_stack_maps.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
reuseport_array.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
ringbuf.c
bpf: return long from bpf_map_ops funcs
2023-03-22 15:11:30 -07:00
stackmap.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
syscall.c
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2023-06-24 14:52:28 -07:00
sysfs_btf.c
…
task_iter.c
bpf: keep a reference to the mm, in case the task is dead.
2022-12-28 14:11:48 -08:00
tnum.c
…
trampoline.c
bpf: Fix memleak due to fentry attach failure
2023-05-15 23:41:59 +02:00
verifier.c
Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2023-06-24 14:52:28 -07:00