Merge tag 'bpf-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Add BPF uprobe session support (Jiri Olsa)

 - Optimize uprobe performance (Andrii Nakryiko)

 - Add bpf_fastcall support to helpers and kfuncs (Eduard Zingerman)

 - Avoid calling free_htab_elem() under hash map bucket lock (Hou Tao)

 - Prevent tailcall infinite loop caused by freplace (Leon Hwang)

 - Mark raw_tracepoint arguments as nullable (Kumar Kartikeya Dwivedi)

 - Introduce uptr support in the task local storage map (Martin KaFai
   Lau)

 - Stringify errno log messages in libbpf (Mykyta Yatsenko)

 - Add kmem_cache BPF iterator for perf's lock profiling (Namhyung Kim)

 - Support BPF objects of either endianness in libbpf (Tony Ambardar)

 - Add ksym to struct_ops trampoline to fix stack trace (Xu Kuohai)

 - Introduce private stack for eligible BPF programs (Yonghong Song)

 - Migrate samples/bpf tests to selftests/bpf test_progs (Daniel T. Lee)

 - Migrate test_sock to selftests/bpf test_progs (Jordan Rife)

* tag 'bpf-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (152 commits)
  libbpf: Change hash_combine parameters from long to unsigned long
  selftests/bpf: Fix build error with llvm 19
  libbpf: Fix memory leak in bpf_program__attach_uprobe_multi
  bpf: use common instruction history across all states
  bpf: Add necessary migrate_disable to range_tree.
  bpf: Do not alloc arena on unsupported arches
  selftests/bpf: Set test path for token/obj_priv_implicit_token_envvar
  selftests/bpf: Add a test for arena range tree algorithm
  bpf: Introduce range_tree data structure and use it in bpf arena
  samples/bpf: Remove unused variable in xdp2skb_meta_kern.c
  samples/bpf: Remove unused variables in tc_l2_redirect_kern.c
  bpftool: Cast variable `var` to long long
  bpf, x86: Propagate tailcall info only for subprogs
  bpf: Add kernel symbol for struct_ops trampoline
  bpf: Use function pointers count as struct_ops links count
  bpf: Remove unused member rcu from bpf_struct_ops_map
  selftests/bpf: Add struct_ops prog private stack tests
  bpf: Support private stack for struct_ops progs
  selftests/bpf: Add tracing prog private stack tests
  bpf, x86: Support private stack in jit
  ...

1 files changed, 0 insertions, 225 deletions

diff --git a/samples/bpf/test_overhead_user.c b/samples/bpf/test_overhead_user.c
deleted file mode 100644
index dbd86f7b1473..000000000000
--- a/samples/bpf/test_overhead_user.c
+++ /dev/null
@@ -1,225 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Copyright (c) 2016 Facebook
- */
-#define _GNU_SOURCE
-#include <sched.h>
-#include <errno.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <asm/unistd.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <assert.h>
-#include <sys/wait.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <linux/bpf.h>
-#include <string.h>
-#include <time.h>
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-#define MAX_CNT 1000000
-#define DUMMY_IP "127.0.0.1"
-#define DUMMY_PORT 80
-
-static struct bpf_link *links[2];
-static struct bpf_object *obj;
-static int cnt;
-
-static __u64 time_get_ns(void)
-{
-	struct timespec ts;
-
-	clock_gettime(CLOCK_MONOTONIC, &ts);
-	return ts.tv_sec * 1000000000ull + ts.tv_nsec;
-}
-
-static void test_task_rename(int cpu)
-{
-	char buf[] = "test\n";
-	__u64 start_time;
-	int i, fd;
-
-	fd = open("/proc/self/comm", O_WRONLY|O_TRUNC);
-	if (fd < 0) {
-		printf("couldn't open /proc\n");
-		exit(1);
-	}
-	start_time = time_get_ns();
-	for (i = 0; i < MAX_CNT; i++) {
-		if (write(fd, buf, sizeof(buf)) < 0) {
-			printf("task rename failed: %s\n", strerror(errno));
-			close(fd);
-			return;
-		}
-	}
-	printf("task_rename:%d: %lld events per sec\n",
-	       cpu, MAX_CNT * 1000000000ll / (time_get_ns() - start_time));
-	close(fd);
-}
-
-static void test_fib_table_lookup(int cpu)
-{
-	struct sockaddr_in addr;
-	char buf[] = "test\n";
-	__u64 start_time;
-	int i, fd;
-
-	fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
-	if (fd < 0) {
-		printf("couldn't open socket\n");
-		exit(1);
-	}
-	memset((char *)&addr, 0, sizeof(addr));
-	addr.sin_addr.s_addr = inet_addr(DUMMY_IP);
-	addr.sin_port = htons(DUMMY_PORT);
-	addr.sin_family = AF_INET;
-	start_time = time_get_ns();
-	for (i = 0; i < MAX_CNT; i++) {
-		if (sendto(fd, buf, strlen(buf), 0,
-			   (struct sockaddr *)&addr, sizeof(addr)) < 0) {
-			printf("failed to start ping: %s\n", strerror(errno));
-			close(fd);
-			return;
-		}
-	}
-	printf("fib_table_lookup:%d: %lld events per sec\n",
-	       cpu, MAX_CNT * 1000000000ll / (time_get_ns() - start_time));
-	close(fd);
-}
-
-static void loop(int cpu, int flags)
-{
-	cpu_set_t cpuset;
-
-	CPU_ZERO(&cpuset);
-	CPU_SET(cpu, &cpuset);
-	sched_setaffinity(0, sizeof(cpuset), &cpuset);
-
-	if (flags & 1)
-		test_task_rename(cpu);
-	if (flags & 2)
-		test_fib_table_lookup(cpu);
-}
-
-static void run_perf_test(int tasks, int flags)
-{
-	pid_t pid[tasks];
-	int i;
-
-	for (i = 0; i < tasks; i++) {
-		pid[i] = fork();
-		if (pid[i] == 0) {
-			loop(i, flags);
-			exit(0);
-		} else if (pid[i] == -1) {
-			printf("couldn't spawn #%d process\n", i);
-			exit(1);
-		}
-	}
-	for (i = 0; i < tasks; i++) {
-		int status;
-
-		assert(waitpid(pid[i], &status, 0) == pid[i]);
-		assert(status == 0);
-	}
-}
-
-static int load_progs(char *filename)
-{
-	struct bpf_program *prog;
-	int err = 0;
-
-	obj = bpf_object__open_file(filename, NULL);
-	err = libbpf_get_error(obj);
-	if (err < 0) {
-		fprintf(stderr, "ERROR: opening BPF object file failed\n");
-		return err;
-	}
-
-	/* load BPF program */
-	err = bpf_object__load(obj);
-	if (err < 0) {
-		fprintf(stderr, "ERROR: loading BPF object file failed\n");
-		return err;
-	}
-
-	bpf_object__for_each_program(prog, obj) {
-		links[cnt] = bpf_program__attach(prog);
-		err = libbpf_get_error(links[cnt]);
-		if (err < 0) {
-			fprintf(stderr, "ERROR: bpf_program__attach failed\n");
-			links[cnt] = NULL;
-			return err;
-		}
-		cnt++;
-	}
-
-	return err;
-}
-
-static void unload_progs(void)
-{
-	while (cnt)
-		bpf_link__destroy(links[--cnt]);
-
-	bpf_object__close(obj);
-}
-
-int main(int argc, char **argv)
-{
-	int num_cpu = sysconf(_SC_NPROCESSORS_ONLN);
-	int test_flags = ~0;
-	char filename[256];
-	int err = 0;
-
-
-	if (argc > 1)
-		test_flags = atoi(argv[1]) ? : test_flags;
-	if (argc > 2)
-		num_cpu = atoi(argv[2]) ? : num_cpu;
-
-	if (test_flags & 0x3) {
-		printf("BASE\n");
-		run_perf_test(num_cpu, test_flags);
-	}
-
-	if (test_flags & 0xC) {
-		snprintf(filename, sizeof(filename),
-			 "%s_kprobe.bpf.o", argv[0]);
-
-		printf("w/KPROBE\n");
-		err = load_progs(filename);
-		if (!err)
-			run_perf_test(num_cpu, test_flags >> 2);
-
-		unload_progs();
-	}
-
-	if (test_flags & 0x30) {
-		snprintf(filename, sizeof(filename),
-			 "%s_tp.bpf.o", argv[0]);
-		printf("w/TRACEPOINT\n");
-		err = load_progs(filename);
-		if (!err)
-			run_perf_test(num_cpu, test_flags >> 4);
-
-		unload_progs();
-	}
-
-	if (test_flags & 0xC0) {
-		snprintf(filename, sizeof(filename),
-			 "%s_raw_tp.bpf.o", argv[0]);
-		printf("w/RAW_TRACEPOINT\n");
-		err = load_progs(filename);
-		if (!err)
-			run_perf_test(num_cpu, test_flags >> 6);
-
-		unload_progs();
-	}
-
-	return err;
-}