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linux/kernel/bpf
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Andrea Terzolo a2598045ea bpf: clarify a misleading verifier error message 
The current verifier error message states that tail_calls are not
allowed in non-JITed programs with BPF-to-BPF calls. While this is
accurate, it is not the only scenario where this restriction applies.
Some architectures do not support this feature combination even when
programs are JITed. This update improves the error message to better
reflect these limitations.

Suggested-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Andrea Terzolo <andreaterzolo3@gmail.com>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Link: https://lore.kernel.org/r/20250318083551.8192-1-andreaterzolo3@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2025-03-18 19:11:23 -07:00
..
preload
bpf: preload: Add MODULE_DESCRIPTION
2025-03-15 11:48:58 -07:00
arena.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf bpf-6.14-rc4
2025-02-20 18:13:57 -08:00
arraymap.c
bpf: Remove migrate_{disable|enable} in ->map_for_each_callback
2025-01-08 18:06:35 -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: Only fails the busy counter check in bpf_cgrp_storage_get if it creates storage
2025-03-18 19:05:46 -07:00
bpf_inode_storage.c
bpf: Disable migration when destroying inode storage
2025-01-08 18:06:36 -08:00
bpf_iter.c
bpf: Make every prog keep a copy of ctx_arg_info
2025-02-17 18:47:27 -08:00
bpf_local_storage.c
bpf: Remove migrate_{disable|enable} from bpf_selem_free()
2025-01-08 18:06:37 -08:00
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: lru: Remove unused declaration bpf_lru_promote()
2023-08-08 17:21:42 -07:00
bpf_lsm.c
bpf: lsm: Add two more sleepable hooks
2025-02-13 19:35:31 -08:00
bpf_struct_ops.c
bpf: Allow struct_ops prog to return referenced kptr
2025-02-17 18:47:27 -08:00
bpf_task_storage.c
bpf: Remove migrate_{disable|enable} from bpf_task_storage_lock helpers
2025-01-08 18:06:36 -08:00
btf_iter.c
bpf: Remove custom build rule
2024-08-30 08:55:26 -07:00
btf_relocate.c
bpf: Remove custom build rule
2024-08-30 08:55:26 -07:00
btf.c
selftests/bpf: Test gen_pro/epilogue that generate kfuncs
2025-02-25 19:04:43 -08:00
cgroup_iter.c
bpf: Let verifier consider {task,cgroup} is trusted in bpf_iter_reg
2023-11-07 15:24:25 -08:00
cgroup.c
bpf: Allow pre-ordering for bpf cgroup progs
2025-03-15 11:48:25 -07:00
core.c
bpf: Make perf_event_read_output accessible in all program types.
2025-03-18 10:21:59 -07:00
cpumap.c
xdp: get rid of xdp_frame::mem.id
2024-12-12 18:22:52 -08:00
cpumask.c
bpf: fix missing kdoc string fields in cpumask.c
2025-03-15 11:48:57 -07:00
crypto.c
bpf: crypto: make state and IV dynptr nullable
2024-06-13 16:33:04 -07:00
devmap.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2024-12-12 14:19:05 -08:00
disasm.c
bpftool: Using the right format specifiers
2025-03-17 13:50:56 -07:00
disasm.h
…
dispatcher.c
bpf: Add kernel symbol for struct_ops trampoline
2024-11-12 17:13:46 -08:00
hashtab.c
bpf: Check map->record at the beginning of check_and_free_fields()
2025-03-15 12:06:50 -07:00
helpers.c
bpf: Make perf_event_read_output accessible in all program types.
2025-03-18 10:21:59 -07:00
inode.c
bpf: Preserve param->string when parsing mount options
2024-10-22 12:56:38 -07:00
Kconfig
bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of
2024-05-14 00:36:29 -07:00
kmem_cache_iter.c
bpf: Add open coded version of kmem_cache iterator
2024-11-01 11:08:32 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
bpf: Replace 8 seq_puts() calls by seq_putc() calls
2024-07-29 12:53:00 -07:00
log.c
bpf: Introduce support for bpf_local_irq_{save,restore}
2024-12-04 08:38:29 -08:00
lpm_trie.c
bpf: Remove migrate_{disable|enable} from LPM trie
2025-01-08 18:06:35 -08:00
Makefile
bpf: Avoid deadlock caused by nested kprobe and fentry bpf programs
2024-12-14 09:49:27 -08:00
map_in_map.c
bpf: switch maps to CLASS(fd, ...)
2024-08-13 15:58:17 -07:00
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
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
2024-11-13 12:52:51 -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
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: Avoid deadlock when using queue and stack maps from NMI
2023-09-11 19:04:49 -07:00
range_tree.c
bpf: Disable migration before calling ops->map_free()
2025-01-08 18:06:36 -08:00
range_tree.h
bpf: Introduce range_tree data structure and use it in bpf arena
2024-11-13 13:52:45 -08:00
relo_core.c
bpf: Remove custom build rule
2024-08-30 08:55:26 -07:00
reuseport_array.c
bpf: Use sockfd_put() helper
2024-08-30 08:57:47 -07:00
ringbuf.c
bpf: unify VM_WRITE vs VM_MAYWRITE use in BPF map mmaping logic
2025-01-29 09:49:50 -08:00
stackmap.c
bpf: wire up sleepable bpf_get_stack() and bpf_get_task_stack() helpers
2024-09-11 09:58:31 -07:00
syscall.c
bpf: Return prog btf_id without capable check
2025-03-17 13:45:12 -07:00
sysfs_btf.c
btf: Switch vmlinux BTF attribute to sysfs_bin_attr_simple_read()
2025-01-09 10:44:06 +01:00
task_iter.c
Merge tag 'vfs-6.13.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2024-11-18 10:30:29 -08:00
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
remove pointless includes of <linux/fdtable.h>
2024-10-07 13:34:41 -04:00
trampoline.c
bpf: Add kernel symbol for struct_ops trampoline
2024-11-12 17:13:46 -08:00
verifier.c
bpf: clarify a misleading verifier error message
2025-03-18 19:11:23 -07:00