From: Martin KaFai Lau <kafai@fb.com>
To: <bpf@vger.kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
David Miller <davem@davemloft.net>, <kernel-team@fb.com>,
<netdev@vger.kernel.org>
Subject: [PATCH bpf-next v4 01/11] bpf: Save PTR_TO_BTF_ID register state when spilling to stack
Date: Wed, 8 Jan 2020 16:44:24 -0800 [thread overview]
Message-ID: <20200109004424.3894196-1-kafai@fb.com> (raw)
In-Reply-To: <20200109003453.3854769-1-kafai@fb.com>
This patch makes the verifier save the PTR_TO_BTF_ID register state when
spilling to the stack.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
---
kernel/bpf/verifier.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 6f63ae7a370c..d433d70022fd 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -1916,6 +1916,7 @@ static bool is_spillable_regtype(enum bpf_reg_type type)
case PTR_TO_TCP_SOCK:
case PTR_TO_TCP_SOCK_OR_NULL:
case PTR_TO_XDP_SOCK:
+ case PTR_TO_BTF_ID:
return true;
default:
return false;
--
2.17.1
next prev parent reply other threads:[~2020-01-09 0:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 0:34 [PATCH bpf-next v4 00/11] Introduce BPF STRUCT_OPS Martin KaFai Lau
2020-01-09 0:34 ` [PATCH bpf-next v4 01/11] bpf: Save PTR_TO_BTF_ID register state when spilling to stack Martin KaFai Lau
2020-01-09 0:34 ` [PATCH bpf-next v4 02/11] bpf: Avoid storing modifier to info->btf_id Martin KaFai Lau
2020-01-09 0:34 ` [PATCH bpf-next v4 03/11] bpf: Add enum support to btf_ctx_access() Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 04/11] bpf: Support bitfield read access in btf_struct_access Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 05/11] bpf: Introduce BPF_PROG_TYPE_STRUCT_OPS Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 06/11] bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 07/11] bpf: tcp: Support tcp_congestion_ops in bpf Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 08/11] bpf: Add BPF_FUNC_tcp_send_ack helper Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 09/11] bpf: Synch uapi bpf.h to tools/ Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 10/11] bpf: libbpf: Add STRUCT_OPS support Martin KaFai Lau
2020-01-09 0:35 ` [PATCH bpf-next v4 11/11] bpf: Add bpf_dctcp example Martin KaFai Lau
2020-01-09 0:44 ` Martin KaFai Lau [this message]
2020-01-09 1:06 ` [PATCH bpf-next v4 01/11] bpf: Save PTR_TO_BTF_ID register state when spilling to stack Arnaldo Carvalho de Melo
2020-01-09 5:47 ` Martin Lau
2020-01-09 13:23 ` Arnaldo Carvalho de Melo
2020-01-09 0:45 ` [PATCH bpf-next v4 08/11] bpf: Add BPF_FUNC_tcp_send_ack helper Martin KaFai Lau
2020-01-09 17:52 ` [PATCH bpf-next v4 00/11] Introduce BPF STRUCT_OPS Alexei Starovoitov
2020-01-09 22:36 ` Andrii Nakryiko
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