Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Alexei Starovoitov says:

====================
pull-request: bpf-next 2021-04-01

The following pull-request contains BPF updates for your *net-next* tree.

We've added 68 non-merge commits during the last 7 day(s) which contain
a total of 70 files changed, 2944 insertions(+), 1139 deletions(-).

The main changes are:

1) UDP support for sockmap, from Cong.

2) Verifier merge conflict resolution fix, from Daniel.

3) xsk selftests enhancements, from Maciej.

4) Unstable helpers aka kernel func calling, from Martin.

5) Batches ops for LPM map, from Pedro.

6) Fix race in bpf_get_local_storage, from Yonghong.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 33 insertions, 1 deletions

diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c
index 0abdd67f44b1..a5d72c48fb66 100644
--- a/net/bpf/test_run.c
+++ b/net/bpf/test_run.c
@@ -2,6 +2,7 @@
 /* Copyright (c) 2017 Facebook
  */
 #include <linux/bpf.h>
+#include <linux/btf_ids.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/etherdevice.h>
@@ -106,12 +107,16 @@ static int bpf_test_run(struct bpf_prog *prog, void *ctx, u32 repeat,
 
 	bpf_test_timer_enter(&t);
 	do {
-		bpf_cgroup_storage_set(storage);
+		ret = bpf_cgroup_storage_set(storage);
+		if (ret)
+			break;
 
 		if (xdp)
 			*retval = bpf_prog_run_xdp(prog, ctx);
 		else
 			*retval = BPF_PROG_RUN(prog, ctx);
+
+		bpf_cgroup_storage_unset();
 	} while (bpf_test_timer_continue(&t, repeat, &ret, time));
 	bpf_test_timer_leave(&t);
 
@@ -209,10 +214,37 @@ int noinline bpf_modify_return_test(int a, int *b)
 	*b += 1;
 	return a + *b;
 }
+
+u64 noinline bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d)
+{
+	return a + b + c + d;
+}
+
+int noinline bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b)
+{
+	return a + b;
+}
+
+struct sock * noinline bpf_kfunc_call_test3(struct sock *sk)
+{
+	return sk;
+}
+
 __diag_pop();
 
 ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO);
 
+BTF_SET_START(test_sk_kfunc_ids)
+BTF_ID(func, bpf_kfunc_call_test1)
+BTF_ID(func, bpf_kfunc_call_test2)
+BTF_ID(func, bpf_kfunc_call_test3)
+BTF_SET_END(test_sk_kfunc_ids)
+
+bool bpf_prog_test_check_kfunc_call(u32 kfunc_id)
+{
+	return btf_id_set_contains(&test_sk_kfunc_ids, kfunc_id);
+}
+
 static void *bpf_test_init(const union bpf_attr *kattr, u32 size,
 			   u32 headroom, u32 tailroom)
 {