From be3d72a2896cb24090f268dce4aa8a304d40bc23 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 21 Jan 2022 11:09:57 +0100 Subject: bpf: move user_size out of bpf_test_init Rely on data_size_in in bpf_test_init routine signature. This is a preliminary patch to introduce xdp frags selftest Acked-by: Toke Hoiland-Jorgensen Acked-by: John Fastabend Signed-off-by: Lorenzo Bianconi Link: https://lore.kernel.org/r/6b48d38ed3d60240d7d6bb15e6fa7fabfac8dfb2.1642758637.git.lorenzo@kernel.org Signed-off-by: Alexei Starovoitov --- net/bpf/test_run.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'net/bpf') diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 3a5bf8ad834d..67f7c7d75944 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -367,11 +367,10 @@ BTF_SET_START(test_sk_ret_null_kfunc_ids) BTF_ID(func, bpf_kfunc_call_test_acquire) BTF_SET_END(test_sk_ret_null_kfunc_ids) -static void *bpf_test_init(const union bpf_attr *kattr, u32 size, - u32 headroom, u32 tailroom) +static void *bpf_test_init(const union bpf_attr *kattr, u32 user_size, + u32 size, u32 headroom, u32 tailroom) { void __user *data_in = u64_to_user_ptr(kattr->test.data_in); - u32 user_size = kattr->test.data_size_in; void *data; if (size < ETH_HLEN || size > PAGE_SIZE - headroom - tailroom) @@ -699,7 +698,8 @@ int bpf_prog_test_run_skb(struct bpf_prog *prog, const union bpf_attr *kattr, if (kattr->test.flags || kattr->test.cpu) return -EINVAL; - data = bpf_test_init(kattr, size, NET_SKB_PAD + NET_IP_ALIGN, + data = bpf_test_init(kattr, kattr->test.data_size_in, + size, NET_SKB_PAD + NET_IP_ALIGN, SKB_DATA_ALIGN(sizeof(struct skb_shared_info))); if (IS_ERR(data)) return PTR_ERR(data); @@ -908,7 +908,8 @@ int bpf_prog_test_run_xdp(struct bpf_prog *prog, const union bpf_attr *kattr, /* XDP have extra tailroom as (most) drivers use full page */ max_data_sz = 4096 - headroom - tailroom; - data = bpf_test_init(kattr, max_data_sz, headroom, tailroom); + data = bpf_test_init(kattr, kattr->test.data_size_in, + max_data_sz, headroom, tailroom); if (IS_ERR(data)) { ret = PTR_ERR(data); goto free_ctx; @@ -994,7 +995,7 @@ int bpf_prog_test_run_flow_dissector(struct bpf_prog *prog, if (size < ETH_HLEN) return -EINVAL; - data = bpf_test_init(kattr, size, 0, 0); + data = bpf_test_init(kattr, kattr->test.data_size_in, size, 0, 0); if (IS_ERR(data)) return PTR_ERR(data); -- cgit v1.2.3-58-ga151