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linux/kernel/bpf
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Andrii Nakryiko 522bb2c1f8 bpf: support multiple tags per argument 
Add ability to iterate multiple decl_tag types pointed to the same
function argument. Use this to support multiple __arg_xxx tags per
global subprog argument.

We leave btf_find_decl_tag_value() intact, but change its implementation
to use a new btf_find_next_decl_tag() which can be straightforwardly
used to find next BTF type ID of a matching btf_decl_tag type.
btf_prepare_func_args() is switched from btf_find_decl_tag_value() to
btf_find_next_decl_tag() to gain multiple tags per argument support.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240105000909.2818934-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-01-23 14:40:21 -08:00
..
preload
bpf: make preloaded map iterators to display map elements count
2023-07-06 12:42:25 -07:00
arraymap.c
Revert BPF token-related functionality
2023-12-19 08:23:03 -08:00
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: Enable bpf_cgrp_storage for cgroup1 non-attach case
2023-12-08 17:08:18 -08:00
bpf_inode_storage.c
Networking changes for 6.4.
2023-04-26 16:07:23 -07:00
bpf_iter.c
bpf: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
bpf_local_storage.c
bpf: bpf_sk_storage: Fix the missing uncharge in sk_omem_alloc
2023-09-06 11:08:14 +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: lru: Remove unused declaration bpf_lru_promote()
2023-08-08 17:21:42 -07:00
bpf_lsm.c
Revert BPF token-related functionality
2023-12-19 08:23:03 -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
x86/cfi,bpf: Fix bpf_struct_ops CFI
2023-12-15 16:25:55 -08:00
bpf_task_storage.c
bpf: Teach verifier that certain helpers accept NULL pointer.
2023-04-04 16:57:16 -07:00
btf.c
bpf: support multiple tags per argument
2024-01-23 14:40:21 -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
Revert BPF token-related functionality
2023-12-19 08:23:03 -08:00
core.c
bpf: Support inlining bpf_kptr_xchg() helper
2024-01-23 14:40:21 -08:00
cpumap.c
net, bpf: Add a warning if NAPI cb missed xdp_do_flush().
2023-10-17 15:02:03 +02:00
cpumask.c
bpf: Fix dtor CFI
2023-12-15 16:25:55 -08:00
devmap.c
net, bpf: Add a warning if NAPI cb missed xdp_do_flush().
2023-10-17 15:02:03 +02:00
disasm.c
bpf: change bpf_alu_sign_string and bpf_movsx_string to static
2023-08-04 16:15:50 -07:00
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: Use arch_bpf_trampoline_size
2023-12-06 17:17:20 -08:00
hashtab.c
Networking changes for 6.8.
2024-01-11 10:07:29 -08:00
helpers.c
bpf: Support inlining bpf_kptr_xchg() helper
2024-01-23 14:40:21 -08:00
inode.c
bpf: Re-support uid and gid when mounting bpffs
2023-12-21 14:24:30 +01:00
Kconfig
bpf: Add fd-based tcx multi-prog infra with link support
2023-07-19 10:07:27 -07:00
link_iter.c
bpf: Add bpf_link iterator
2022-05-10 11:20:45 -07:00
local_storage.c
cgroup changes for v6.4-rc1
2023-04-29 10:05:22 -07:00
log.c
bpf: emit more dynptr information in verifier log
2023-12-11 19:21:22 -08:00
lpm_trie.c
bpf, lpm: Fix check prefixlen before walking trie
2023-11-09 19:07:38 -08:00
Makefile
Revert BPF token-related functionality
2023-12-19 08:23:03 -08:00
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: Add __bpf_kfunc_{start,end}_defs macros
2023-11-01 22:33:53 -07:00
memalloc.c
bpf: Remove unnecessary cpu == 0 check in memalloc
2024-01-04 10:18:14 -08:00
mmap_unlock_work.h
bpf: Introduce helper bpf_find_vma
2021-11-07 11:54:51 -08:00
mprog.c
bpf: Handle bpf_mprog_query with NULL entry
2023-10-06 17:11:20 -07:00
net_namespace.c
net: Add includes masked by netdevice.h including uapi/bpf.h
2021-12-29 20:03:05 -08:00
offload.c
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
reuseport_array.c
bpf: Centralize permissions checks for all BPF map types
2023-06-19 14:04:04 +02:00
ringbuf.c
bpf: Fold smp_mb__before_atomic() into atomic_set_release()
2023-10-24 14:26:07 +02:00
stackmap.c
bpf: Add crosstask check to __bpf_get_stack
2023-11-10 11:06:10 -08:00
syscall.c
bpf: Fix re-attachment branch in bpf_tracing_prog_attach
2024-01-04 20:40:19 -08:00
sysfs_btf.c
…
task_iter.c
bpf: bpf_iter_task_next: use next_task(kit->task) rather than next_task(kit->pos)
2023-11-19 11:43:44 -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
trampoline.c
bpf: Use arch_bpf_trampoline_size
2023-12-06 17:17:20 -08:00
verifier.c
bpf: prepare btf_prepare_func_args() for multiple tags per argument
2024-01-23 14:40:21 -08:00