From: John Fastabend <john.fastabend@gmail.com>
To: Martin KaFai Lau <kafai@fb.com>, bpf@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
kernel-team@fb.com, Lorenz Bauer <lmb@cloudflare.com>,
netdev@vger.kernel.org
Subject: RE: [PATCH v4 bpf-next 01/13] bpf: Move the PTR_TO_BTF_ID check to check_reg_type()
Date: Fri, 25 Sep 2020 06:36:31 -0700 [thread overview]
Message-ID: <5f6df25f4265_835ea20842@john-XPS-13-9370.notmuch> (raw)
In-Reply-To: <20200925000344.3854828-1-kafai@fb.com>
Martin KaFai Lau wrote:
> check_reg_type() checks whether a reg can be used as an arg of a
> func_proto. For PTR_TO_BTF_ID, the check is actually not
> completely done until the reg->btf_id is pointing to a
> kernel struct that is acceptable by the func_proto.
>
> Thus, this patch moves the btf_id check into check_reg_type().
> "arg_type" and "arg_btf_id" are passed to check_reg_type() instead of
> "compatible". The compatible_reg_types[] usage is localized in
> check_reg_type() now.
>
> The "if (!btf_id) verbose(...); " is also removed since it won't happen.
>
> Signed-off-by: Martin KaFai Lau <kafai@fb.com>
> ---
Acked-by: John Fastabend <john.fastabend@gmail.com>
next prev parent reply other threads:[~2020-09-25 13:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 0:03 [PATCH v4 bpf-next 00/13] bpf: Enable bpf_skc_to_* sock casting helper to networking prog type Martin KaFai Lau
2020-09-25 0:03 ` [PATCH v4 bpf-next 01/13] bpf: Move the PTR_TO_BTF_ID check to check_reg_type() Martin KaFai Lau
2020-09-25 8:22 ` Lorenz Bauer
2020-09-25 13:36 ` John Fastabend [this message]
2020-09-25 0:03 ` [PATCH v4 bpf-next 02/13] bpf: Enable bpf_skc_to_* sock casting helper to networking prog type Martin KaFai Lau
2020-09-25 8:26 ` Lorenz Bauer
2020-09-25 13:18 ` Martin KaFai Lau
2020-09-25 13:50 ` Lorenz Bauer
2020-09-25 15:47 ` Alexei Starovoitov
2020-09-25 14:21 ` John Fastabend
2020-09-25 0:03 ` [PATCH v4 bpf-next 03/13] bpf: Change bpf_sk_release and bpf_sk_*cgroup_id to accept ARG_PTR_TO_BTF_ID_SOCK_COMMON Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 04/13] bpf: Change bpf_sk_storage_*() " Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 05/13] bpf: Change bpf_tcp_*_syncookie " Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 06/13] bpf: Change bpf_sk_assign " Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 07/13] bpf: selftest: Add ref_tracking verifier test for bpf_skc casting Martin KaFai Lau
2020-09-25 8:30 ` Lorenz Bauer
2020-09-25 0:04 ` [PATCH v4 bpf-next 08/13] bpf: selftest: Move sock_fields test into test_progs Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 09/13] bpf: selftest: Adapt sock_fields test to use skel and global variables Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 10/13] bpf: selftest: Use network_helpers in the sock_fields test Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 11/13] bpf: selftest: Use bpf_skc_to_tcp_sock() " Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 12/13] bpf: selftest: Remove enum tcp_ca_state from bpf_tcp_helpers.h Martin KaFai Lau
2020-09-25 0:04 ` [PATCH v4 bpf-next 13/13] bpf: selftest: Add test_btf_skc_cls_ingress Martin KaFai Lau
2020-09-25 16:24 ` John Fastabend
2020-09-25 17:58 ` Martin KaFai Lau
2020-09-25 9:40 ` [PATCH v4 bpf-next 00/13] bpf: Enable bpf_skc_to_* sock casting helper to networking prog type Lorenz Bauer
2020-09-25 23:22 ` Alexei Starovoitov
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