linux/kernel/bpf
Malin Jonsson 8ce93aabbf bpf: Conditionally include dynptr copy kfuncs
Since commit a498ee7576 ("bpf: Implement dynptr copy kfuncs"), if
CONFIG_BPF_EVENTS is not enabled, but BPF_SYSCALL and DEBUG_INFO_BTF are,
the build will break like so:

  BTFIDS  vmlinux.unstripped
WARN: resolve_btfids: unresolved symbol bpf_probe_read_user_str_dynptr
WARN: resolve_btfids: unresolved symbol bpf_probe_read_user_dynptr
WARN: resolve_btfids: unresolved symbol bpf_probe_read_kernel_str_dynptr
WARN: resolve_btfids: unresolved symbol bpf_probe_read_kernel_dynptr
WARN: resolve_btfids: unresolved symbol bpf_copy_from_user_task_str_dynptr
WARN: resolve_btfids: unresolved symbol bpf_copy_from_user_task_dynptr
WARN: resolve_btfids: unresolved symbol bpf_copy_from_user_str_dynptr
WARN: resolve_btfids: unresolved symbol bpf_copy_from_user_dynptr
make[2]: *** [scripts/Makefile.vmlinux:72: vmlinux.unstripped] Error 255
make[2]: *** Deleting file 'vmlinux.unstripped'
make[1]: *** [/repo/malin/upstream/linux/Makefile:1242: vmlinux] Error 2
make: *** [Makefile:248: __sub-make] Error 2

Guard these symbols with #ifdef CONFIG_BPF_EVENTS to resolve the problem.

Fixes: a498ee7576 ("bpf: Implement dynptr copy kfuncs")
Reported-by: Yong Gu <yong.g.gu@ericsson.com>
Acked-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Malin Jonsson <malin.jonsson@est.tech>
Link: https://lore.kernel.org/r/20251024151436.139131-1-malin.jonsson@est.tech
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-10-24 09:44:47 -07:00
..
preload
Kconfig
Makefile
arena.c
arraymap.c
bloom_filter.c
bpf_cgrp_storage.c
bpf_inode_storage.c
bpf_iter.c
bpf_local_storage.c
bpf_lru_list.c
bpf_lru_list.h
bpf_lsm.c
bpf_struct_ops.c
bpf_task_storage.c
btf.c
btf_iter.c
btf_relocate.c
cgroup.c
cgroup_iter.c
core.c
cpumap.c
cpumask.c
crypto.c
devmap.c
disasm.c
disasm.h
dispatcher.c
dmabuf_iter.c
hashtab.c
helpers.c bpf: Conditionally include dynptr copy kfuncs 2025-10-24 09:44:47 -07:00
inode.c bpf: Avoid RCU context warning when unpinning htab with internal structs 2025-10-10 10:10:08 -07:00
kmem_cache_iter.c
link_iter.c
liveness.c bpf: Fix memory leak in __lookup_instance error path 2025-10-16 10:45:17 -07:00
local_storage.c
log.c
lpm_trie.c
map_in_map.c
map_in_map.h
map_iter.c
memalloc.c
mmap_unlock_work.h
mprog.c
net_namespace.c
offload.c
percpu_freelist.c
percpu_freelist.h
prog_iter.c
queue_stack_maps.c
range_tree.c
range_tree.h
relo_core.c
reuseport_array.c
ringbuf.c bpf: Sync pending IRQ work before freeing ring buffer 2025-10-21 09:57:48 -07:00
rqspinlock.c
rqspinlock.h
stackmap.c bpf-next-6.18 2025-09-30 17:58:11 -07:00
stream.c
syscall.c bpf: Replace bpf_map_kmalloc_node() with kmalloc_nolock() to allocate bpf_async_cb structures. 2025-10-15 12:22:22 +02:00
sysfs_btf.c
task_iter.c
tcx.c
tnum.c
token.c
trampoline.c
verifier.c bpf: Reject negative offsets for ALU ops 2025-10-01 15:43:13 -07:00