selftests/bpf: Fix erroneous bitmask operation
[platform/kernel/linux-rpi.git] / tools / testing / selftests / bpf / progs / test_verif_scale3.c
1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2019 Facebook
3 #include <linux/bpf.h>
4 #include <bpf/bpf_helpers.h>
5 #define ATTR __attribute__((noinline))
6 #include "test_jhash.h"
7
8 SEC("tc")
9 int balancer_ingress(struct __sk_buff *ctx)
10 {
11         void *data_end = (void *)(long)ctx->data_end;
12         void *data = (void *)(long)ctx->data;
13         void *ptr;
14         int nh_off, i = 0;
15
16         nh_off = 32;
17
18         /* pragma unroll doesn't work on large loops */
19
20 #define C do { \
21         ptr = data + i; \
22         if (ptr + nh_off > data_end) \
23                 break; \
24         ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
25         } while (0);
26 #define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
27         C30;C30;C30; /* 90 calls */
28         return 0;
29 }
30 char _license[] SEC("license") = "GPL";