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Hou Tao adb4a970bf bpf: Handle BPF_EXIST and BPF_NOEXIST for LPM trie 
[ Upstream commit eae6a075e9537dd69891cf77ca5a88fa8a28b4a1 ]

Add the currently missing handling for the BPF_EXIST and BPF_NOEXIST
flags. These flags can be specified by users and are relevant since LPM
trie supports exact matches during update.

Fixes: b95a5c4db09b ("bpf: add a longest prefix match trie map implementation")
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20241206110622.1161752-4-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:48:22 +01:00
..
bpf
bpf: Handle BPF_EXIST and BPF_NOEXIST for LPM trie
2024-12-14 19:48:22 +01:00
cgroup
cgroup/bpf: only cgroup v2 can be attached by bpf programs
2024-12-14 19:47:47 +01:00
configs
compiler: remove CONFIG_OPTIMIZE_INLINING entirely
2020-04-07 10:43:42 -07:00
debug
kdb: Use the passed prompt in kdb_position_cursor()
2024-08-19 05:41:03 +02:00
dma
dma-debug: avoid deadlock between dma debug vs printk and netconsole
2024-09-12 11:06:39 +02:00
entry
entry/kvm: Exit to user mode when TIF_NOTIFY_SIGNAL is set
2023-01-04 11:39:22 +01:00
events
uprobes: fix kernel info leak via "[uprobes]" vma
2024-10-17 15:08:26 +02:00
futex
futex: Don't include process MM in futex key on no-MMU
2023-11-20 11:06:44 +01:00
gcov
gcov: add support for GCC 14
2024-07-05 09:12:41 +02:00
irq
genirq/irqdesc: Honor caller provided affinity in alloc_desc()
2024-08-19 05:41:19 +02:00
kcsan
kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
2023-07-27 08:43:57 +02:00
livepatch
kallsyms: refactor {,module_}kallsyms_on_each_symbol
2024-06-21 14:52:58 +02:00
locking
lockdep: fix deadlock issue between lockdep and rcu
2024-10-17 15:08:05 +02:00
power
PM: suspend: Set mem_sleep_current during kernel command line setup
2024-04-13 12:58:13 +02:00
printk
printk: Update @console_may_schedule in console_trylock_spinning()
2024-04-13 12:58:54 +02:00
rcu
rcu-tasks: Idle tasks on offline CPUs are in quiescent states
2024-12-14 19:47:42 +01:00
sched
sched/cputime: Fix mul_u64_u64_div_u64() precision for cputime
2024-08-19 05:41:14 +02:00
time
time: Fix references to _msecs_to_jiffies() handling of values
2024-12-14 19:47:45 +01:00
trace
trace/trace_event_perf: remove duplicate samples on the first tracepoint event
2024-12-14 19:47:57 +01:00
.gitignore
kbuild: update config_data.gz only when the content of .config is changed
2021-05-11 14:47:37 +02:00
acct.c
acct: fix potential integer overflow in encode_comp_t()
2023-01-14 10:16:14 +01:00
async.c
async: Introduce async_schedule_dev_nocall()
2024-02-23 08:41:53 +01:00
audit_fsnotify.c
fsnotify: make allow_dups a property of the group
2024-06-21 14:53:39 +02:00
audit_tree.c
fsnotify: pass flags argument to fsnotify_alloc_group()
2024-06-21 14:53:39 +02:00
audit_watch.c
fsnotify: pass flags argument to fsnotify_alloc_group()
2024-06-21 14:53:39 +02:00
audit.c
audit: Send netlink ACK before setting connection in auditd_set
2024-02-23 08:42:03 +01:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-04-08 14:40:00 +02:00
auditfilter.c
ima: Avoid blocking in RCU read-side critical section
2024-07-18 13:05:44 +02:00
auditsc.c
audit: fix possible soft lockup in __audit_inode_child()
2023-09-19 12:20:13 +02:00
backtracetest.c
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2020-07-30 11:15:58 -07:00
bounds.c
bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
2024-05-02 16:23:46 +02:00
capability.c
LSM: Signal to SafeSetID when setting group IDs
2020-10-13 09:17:34 -07:00
compat.c
sched_getaffinity: don't assume 'cpumask_size()' is fully initialized
2023-04-05 11:23:45 +02:00
configs.c
…
context_tracking.c
context_tracking: Ensure that the critical path cannot be instrumented
2020-06-11 15:14:36 +02:00
cpu_pm.c
PM: cpu: Make notifier chain use a raw_spinlock_t
2021-09-15 09:50:40 +02:00
cpu.c
cpu: Re-enable CPU mitigations by default for !X86 architectures
2024-05-02 16:23:44 +02:00
crash_core.c
crash_core, vmcoreinfo: append 'SECTION_SIZE_BITS' to vmcoreinfo
2021-06-23 14:42:52 +02:00
crash_dump.c
crash_dump: Remove no longer used saved_max_pfn
2020-04-15 11:21:54 +02:00
cred.c
cred: switch to using atomic_long_t
2023-12-20 15:44:30 +01:00
delayacct.c
…
dma.c
…
exec_domain.c
…
exit.c
mm: optimize the redundant loop of mm_update_owner_next()
2024-07-18 13:05:42 +02:00
extable.c
kernel/extable.c: use address-of operator on section symbols
2020-04-07 10:43:42 -07:00
fail_function.c
kernel/fail_function: fix memory leak with using debugfs_lookup()
2023-03-11 16:40:18 +01:00
fork.c
exec: Simplify unshare_files
2024-06-21 14:52:47 +02:00
freezer.c
Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"
2021-04-07 15:00:14 +02:00
gen_kheaders.sh
kheaders: explicitly define file modes for archived headers
2024-07-05 09:12:44 +02:00
groups.c
LSM: Signal to SafeSetID when setting group IDs
2020-10-13 09:17:34 -07:00
hung_task.c
kernel/hung_task.c: make type annotations consistent
2020-11-02 12:14:19 -08:00
iomem.c
…
irq_work.c
irq_work, smp: Allow irq_work on call_single_queue
2020-05-28 10:54:15 +02:00
jump_label.c
jump_label: Fix jump_label_text_reserved() vs __init
2021-07-20 16:05:58 +02:00
kallsyms.c
kallsyms: Make kallsyms_on_each_symbol generally available
2024-10-17 15:08:29 +02:00
kcmp.c
kcmp: In get_file_raw_ptr use task_lookup_fd_rcu
2024-06-21 14:52:48 +02:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: don't lose track of remote references during softirqs
2024-07-05 09:12:41 +02:00
kexec_core.c
kexec: fix a memory leak in crash_shrink_memory()
2023-07-27 08:43:40 +02:00
kexec_elf.c
…
kexec_file.c
kexec: support purgatories with .text.hot sections
2023-06-21 15:45:37 +02:00
kexec_internal.h
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:10:29 +02:00
kexec.c
panic, kexec: make __crash_kexec() NMI safe
2023-04-20 12:10:29 +02:00
kheaders.c
kheaders: Use array declaration instead of char
2023-05-17 11:47:33 +02:00
kmod.c
kmod: remove redundant "be an" in the comment
2020-08-12 10:58:01 -07:00
kprobes.c
x86/ibt,ftrace: Search for __fentry__ location
2024-10-17 15:07:37 +02:00
ksysfs.c
kexec: turn all kexec_mutex acquisitions into trylocks
2023-04-20 12:10:29 +02:00
kthread.c
kthread: fix task state in kthread worker if being frozen
2024-10-17 15:07:50 +02:00
latencytop.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
Makefile
futex: Move to kernel/futex/
2023-01-14 10:15:20 +01:00
module_signature.c
module: harden ELF info handling
2021-03-25 09:04:11 +01:00
module_signing.c
module: harden ELF info handling
2021-03-25 09:04:11 +01:00
module-internal.h
…
module.c
kallsyms: Make module_kallsyms_on_each_symbol generally available
2024-10-17 15:08:29 +02:00
notifier.c
notifier: Fix broken error handling pattern
2020-09-01 09:58:03 +02:00
nsproxy.c
nsproxy: support CLONE_NEWTIME with setns()
2020-07-08 11:14:22 +02:00
padata.c
padata: use integer wrap around to prevent deadlock on seq_nr overflow
2024-10-17 15:08:03 +02:00
panic.c
panic: Flush kernel log buffer at the end
2024-04-13 12:59:40 +02:00
params.c
params: lift param_set_uint_minmax to common code
2024-06-16 13:32:26 +02:00
pid_namespace.c
zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING
2024-07-05 09:12:33 +02:00
pid.c
kernel/pid.c: implement additional checks upon pidfd_create() parameters
2024-06-21 14:53:17 +02:00
profile.c
profiling: fix shift too large makes kernel panic
2022-08-21 15:16:05 +02:00
ptrace.c
ptrace: Reimplement PTRACE_KILL by always sending SIGKILL
2022-06-09 10:20:49 +02:00
range.c
kernel.h: split out min()/max() et al. helpers
2020-10-16 11:11:19 -07:00
reboot.c
kernel/reboot: emergency_restart: Set correct system_state
2023-11-28 16:54:58 +00:00
regset.c
regset: kill ->get()
2020-07-27 14:31:12 -04:00
relay.c
relayfs: fix out-of-bounds access in relay_file_read
2023-05-17 11:47:34 +02:00
resource.c
resource: fix region_intersects() vs add_memory_driver_managed()
2024-10-17 15:08:36 +02:00
rseq.c
rseq: Remove broken uapi field layout on 32-bit little endian
2022-04-08 14:40:03 +02:00
scftorture.c
scftorture: Forgive memory-allocation failure if KASAN
2023-09-23 11:01:05 +02:00
scs.c
mm: memcontrol: account kernel stack per node
2020-08-07 11:33:25 -07:00
seccomp.c
seccomp: Invalidate seccomp mode to catch death failures
2024-03-01 13:16:46 +01:00
signal.c
signal: Replace BUG_ON()s
2024-10-17 15:08:12 +02:00
smp.c
smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()
2024-09-12 11:06:48 +02:00
smpboot.c
sched/core: Initialize the idle task with preemption disabled
2021-07-14 16:55:50 +02:00
smpboot.h
…
softirq.c
softirq: Add debug check to __raise_softirq_irqoff()
2020-09-16 15:18:56 +02:00
stackleak.c
gcc-plugins/stackleak: Use noinstr in favor of notrace
2022-02-23 12:01:00 +01:00
stacktrace.c
stacktrace: Remove reliable argument from arch_stack_walk() callback
2020-09-18 14:24:16 +01:00
static_call.c
static_call: Fix unused variable warn w/o MODULE
2021-09-08 08:49:00 +02:00
stop_machine.c
stop_machine, rcu: Mark functions as notrace
2020-10-26 12:12:27 +01:00
sys_ni.c
syscalls: fix compat_sys_io_pgetevents_time64 usage
2024-07-05 09:12:55 +02:00
sys.c
fs: add file and path permissions helpers
2024-06-21 14:52:58 +02:00
sysctl-test.c
…
sysctl.c
sysctl: introduce new proc handler proc_dobool
2024-06-21 14:53:18 +02:00
task_work.c
task_work: Introduce task_work_cancel() again
2024-08-19 05:40:57 +02:00
taskstats.c
taskstats: move specifying netlink policy back to ops
2020-10-02 19:11:12 -07:00
test_kprobes.c
…
torture.c
torture: Fix hang during kthread shutdown phase
2023-08-30 16:23:17 +02:00
tracepoint.c
tracepoint: Use rcu get state and cond sync for static call updates
2021-09-03 10:09:30 +02:00
tsacct.c
taskstats: Cleanup the use of task->exit_code
2022-01-27 10:54:33 +01:00
ucount.c
fanotify: configurable limits via sysfs
2024-06-21 14:53:06 +02:00
uid16.c
…
uid16.h
…
umh.c
usermodehelper: reset umask to default before executing user process
2020-10-06 10:31:52 -07:00
up.c
smp: Fix smp_call_function_single_async prototype
2021-05-14 09:50:46 +02:00
user_namespace.c
Revert "Add a reference to ucounts for each cred"
2021-09-08 08:49:00 +02:00
user-return-notifier.c
…
user.c
user.c: make uidhash_table static
2020-06-04 19:06:24 -07:00
usermode_driver.c
bpf: Fix umd memory leak in copy_process()
2021-03-30 14:32:03 +02:00
utsname_sysctl.c
sysctl: pass kernel pointers to ->proc_handler
2020-04-27 02:07:40 -04:00
utsname.c
nsproxy: add struct nsset
2020-05-09 13:57:12 +02:00
watch_queue.c
watch_queue: fix IOC_WATCH_QUEUE_SET_SIZE alloc error paths
2023-03-17 08:45:13 +01:00
watchdog_hld.c
watchdog/perf: properly initialize the turbo mode timestamp and rearm counter
2024-08-19 05:41:01 +02:00
watchdog.c
watchdog: move softlockup_panic back to early_param
2023-11-28 16:54:56 +00:00
workqueue_internal.h
…
workqueue.c
Revert "workqueue: remove unused cancel_work()"
2023-12-08 08:46:13 +01:00