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 v3 03/11] bpf: Add enum support to btf_ctx_access()
Date: Mon, 30 Dec 2019 22:20:44 -0800 [thread overview]
Message-ID: <20191231062044.281063-1-kafai@fb.com> (raw)
In-Reply-To: <20191231062037.280596-1-kafai@fb.com>
It allows bpf prog (e.g. tracing) to attach
to a kernel function that takes enum argument.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
---
kernel/bpf/btf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 497ecf62d79d..6a5ccb748a72 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -3677,7 +3677,7 @@ bool btf_ctx_access(int off, int size, enum bpf_access_type type,
/* skip modifiers */
while (btf_type_is_modifier(t))
t = btf_type_by_id(btf, t->type);
- if (btf_type_is_int(t))
+ if (btf_type_is_int(t) || btf_type_is_enum(t))
/* accessing a scalar */
return true;
if (!btf_type_is_ptr(t)) {
--
2.17.1
next prev parent reply other threads:[~2019-12-31 6:20 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-31 6:20 [PATCH bpf-next v3 00/11] Introduce BPF STRUCT_OPS Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 01/11] bpf: Save PTR_TO_BTF_ID register state when spilling to stack Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 02/11] bpf: Avoid storing modifier to info->btf_id Martin KaFai Lau
2019-12-31 6:20 ` Martin KaFai Lau [this message]
2019-12-31 6:20 ` [PATCH bpf-next v3 04/11] bpf: Support bitfield read access in btf_struct_access Martin KaFai Lau
2020-01-02 18:04 ` Yonghong Song
2019-12-31 6:20 ` [PATCH bpf-next v3 05/11] bpf: Introduce BPF_PROG_TYPE_STRUCT_OPS Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 06/11] bpf: Introduce BPF_MAP_TYPE_STRUCT_OPS Martin KaFai Lau
2020-01-02 18:33 ` Yonghong Song
2020-01-07 16:00 ` Daniel Borkmann
2020-01-07 18:55 ` Martin Lau
2020-01-07 21:44 ` Daniel Borkmann
2020-01-08 1:53 ` Martin Lau
2020-01-07 20:50 ` Daniel Borkmann
2020-01-07 20:51 ` Daniel Borkmann
2020-01-08 0:21 ` Daniel Borkmann
2020-01-08 1:52 ` Martin Lau
2020-01-08 16:53 ` Daniel Borkmann
2020-01-08 18:41 ` Martin Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 07/11] bpf: tcp: Support tcp_congestion_ops in bpf Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 08/11] bpf: Add BPF_FUNC_tcp_send_ack helper Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 09/11] bpf: Synch uapi bpf.h to tools/ Martin KaFai Lau
2019-12-31 6:20 ` [PATCH bpf-next v3 10/11] bpf: libbpf: Add STRUCT_OPS support Martin KaFai Lau
2019-12-31 6:21 ` [PATCH bpf-next v3 11/11] bpf: Add bpf_dctcp example Martin KaFai Lau
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191231062044.281063-1-kafai@fb.com \
--to=kafai@fb.com \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=kernel-team@fb.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).