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riscv, bpf: Increase the maximum number of iterations

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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
This commit is contained in:
Björn Töpel 2021-10-28 18:10:54 +02:00 • committed by Daniel Borkmann
parent d69672147f
commit 4b54214f39
1 changed files with 1 additions and 1 deletions
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2
arch/riscv/net/bpf_jit_core.c
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@ -11,7 +11,7 @@
#include "bpf_jit.h" #include "bpf_jit.h"
/* Number of iterations to try until offsets converge. */ /* 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) static int build_body(struct rv_jit_context *ctx, bool extra_pass, int *offset)
{ {