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, 46 insertions, 0 deletions

diff --git a/tools/testing/selftests/bpf/progs/recursion.c b/tools/testing/selftests/bpf/progs/recursion.c
new file mode 100644
index 000000000000..49f679375b9d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/recursion.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, long);
+} hash1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, long);
+} hash2 SEC(".maps");
+
+int pass1 = 0;
+int pass2 = 0;
+
+SEC("fentry/__htab_map_lookup_elem")
+int BPF_PROG(on_lookup, struct bpf_map *map)
+{
+	int key = 0;
+
+	if (map == (void *)&hash1) {
+		pass1++;
+		return 0;
+	}
+	if (map == (void *)&hash2) {
+		pass2++;
+		/* htab_map_gen_lookup() will inline below call
+		 * into direct call to __htab_map_lookup_elem()
+		 */
+		bpf_map_lookup_elem(&hash2, &key);
+		return 0;
+	}
+
+	return 0;
+}