Merge tag 'irqchip-fixes-5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

  - More compatible strings for the Ingenic irqchip (introducing the
    JZ4760B SoC)
  - Select GENERIC_IRQ_MULTI_HANDLER on the ARM ep93xx platform
  - Drop all GENERIC_IRQ_MULTI_HANDLER selections from the irqchip
    Kconfig, now relying on the architecture to get it right
  - Drop the debugfs_file field from struct irq_domain, now that
    debugfs can track things on its own

1 files changed, 41 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/prog_tests/recursion.c b/tools/testing/selftests/bpf/prog_tests/recursion.c
new file mode 100644
index 000000000000..0e378d63fe18
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/recursion.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "recursion.skel.h"
+
+void test_recursion(void)
+{
+	struct bpf_prog_info prog_info = {};
+	__u32 prog_info_len = sizeof(prog_info);
+	struct recursion *skel;
+	int key = 0;
+	int err;
+
+	skel = recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = recursion__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	ASSERT_EQ(skel->bss->pass1, 0, "pass1 == 0");
+	bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0);
+	ASSERT_EQ(skel->bss->pass1, 1, "pass1 == 1");
+	bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0);
+	ASSERT_EQ(skel->bss->pass1, 2, "pass1 == 2");
+
+	ASSERT_EQ(skel->bss->pass2, 0, "pass2 == 0");
+	bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0);
+	ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1");
+	bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0);
+	ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2");
+
+	err = bpf_obj_get_info_by_fd(bpf_program__fd(skel->progs.on_lookup),
+				     &prog_info, &prog_info_len);
+	if (!ASSERT_OK(err, "get_prog_info"))
+		goto out;
+	ASSERT_EQ(prog_info.recursion_misses, 2, "recursion_misses");
+out:
+	recursion__destroy(skel);
+}