From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= <bjorn@kernel.org>
Date: Thu, 28 Oct 2021 18:10:54 +0200
Subject: riscv, bpf: Increase the maximum number of iterations
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Patch-mainline: v5.16-rc1
Git-commit: 4b54214f39ff24a7e9b7231ae9c05d1c2c424280
References: jsc#PED-1377

Now that BPF programs can be up to 1M instructions, it is not uncommon
that a program requires more than the current 16 iterations to
converge.

Bump it to 32, which is enough for selftests/bpf, and test_bpf.ko.

Signed-off-by: Björn Töpel <bjorn@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211028161057.520552-2-bjorn@kernel.org
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
---
 arch/riscv/net/bpf_jit_core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/riscv/net/bpf_jit_core.c
+++ b/arch/riscv/net/bpf_jit_core.c
@@ -11,7 +11,7 @@
 #include "bpf_jit.h"
 
 /* Number of iterations to try until offsets converge. */
-#define NR_JIT_ITERATIONS	16
+#define NR_JIT_ITERATIONS	32
 
 static int build_body(struct rv_jit_context *ctx, bool extra_pass, int *offset)
 {