diff options
Diffstat (limited to 'arch/riscv/net')
-rw-r--r-- | arch/riscv/net/bpf_jit_comp64.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/arch/riscv/net/bpf_jit_comp64.c b/arch/riscv/net/bpf_jit_comp64.c index 8581693e62d3..35747fafde57 100644 --- a/arch/riscv/net/bpf_jit_comp64.c +++ b/arch/riscv/net/bpf_jit_comp64.c @@ -1029,6 +1029,21 @@ out: return ret; } +int arch_bpf_trampoline_size(const struct btf_func_model *m, u32 flags, + struct bpf_tramp_links *tlinks, void *func_addr) +{ + struct bpf_tramp_image im; + struct rv_jit_context ctx; + int ret; + + ctx.ninsns = 0; + ctx.insns = NULL; + ctx.ro_insns = NULL; + ret = __arch_prepare_bpf_trampoline(&im, m, tlinks, func_addr, flags, &ctx); + + return ret < 0 ? ret : ninsns_rvoff(ctx.ninsns); +} + int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, void *image_end, const struct btf_func_model *m, u32 flags, struct bpf_tramp_links *tlinks, @@ -1037,14 +1052,11 @@ int arch_prepare_bpf_trampoline(struct bpf_tramp_image *im, void *image, int ret; struct rv_jit_context ctx; - ctx.ninsns = 0; - ctx.insns = NULL; - ctx.ro_insns = NULL; - ret = __arch_prepare_bpf_trampoline(im, m, tlinks, func_addr, flags, &ctx); + ret = arch_bpf_trampoline_size(im, m, flags, tlinks, func_addr); if (ret < 0) return ret; - if (ninsns_rvoff(ret) > (long)image_end - (long)image) + if (ret > (long)image_end - (long)image) return -EFBIG; ctx.ninsns = 0; |