From: thinker.li@gmail.com
To: bpf@vger.kernel.org, ast@kernel.org, martin.lau@linux.dev,
song@kernel.org, kernel-team@meta.com, andrii@kernel.org,
davemarchevsky@meta.com, dvernet@meta.com
Cc: sinquersw@gmail.com, kuifeng@meta.com,
Kui-Feng Lee <thinker.li@gmail.com>
Subject: [RFC bpf-next v4 3/6] bpf: Remove an unnecessary check.
Date: Fri, 2 Feb 2024 14:05:13 -0800 [thread overview]
Message-ID: <20240202220516.1165466-4-thinker.li@gmail.com> (raw)
In-Reply-To: <20240202220516.1165466-1-thinker.li@gmail.com>
From: Kui-Feng Lee <thinker.li@gmail.com>
The "i" here is always equal to "btf_type_vlen(t)" since
the "for_each_member()" loop never breaks.
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
---
kernel/bpf/bpf_struct_ops.c | 21 +++++++++------------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index 0decd862dfe0..f98f580de77a 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -189,20 +189,17 @@ int bpf_struct_ops_desc_init(struct bpf_struct_ops_desc *st_ops_desc,
}
}
- if (i == btf_type_vlen(t)) {
- if (st_ops->init(btf)) {
- pr_warn("Error in init bpf_struct_ops %s\n",
- st_ops->name);
- return -EINVAL;
- } else {
- st_ops_desc->type_id = type_id;
- st_ops_desc->type = t;
- st_ops_desc->value_id = value_id;
- st_ops_desc->value_type = btf_type_by_id(btf,
- value_id);
- }
+ if (st_ops->init(btf)) {
+ pr_warn("Error in init bpf_struct_ops %s\n",
+ st_ops->name);
+ return -EINVAL;
}
+ st_ops_desc->type_id = type_id;
+ st_ops_desc->type = t;
+ st_ops_desc->value_id = value_id;
+ st_ops_desc->value_type = btf_type_by_id(btf, value_id);
+
return 0;
}
--
2.34.1
next prev parent reply other threads:[~2024-02-02 22:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-02 22:05 [RFC bpf-next v4 0/6] Support PTR_MAYBE_NULL for struct_ops arguments thinker.li
2024-02-02 22:05 ` [RFC bpf-next v4 1/6] bpf: Allow PTR_TO_BTF_ID even for pointers to int thinker.li
2024-02-02 22:05 ` [RFC bpf-next v4 2/6] bpf: Extend PTR_TO_BTF_ID to handle pointers to scalar and array types thinker.li
2024-02-03 0:52 ` Martin KaFai Lau
2024-02-03 1:03 ` Kui-Feng Lee
2024-02-02 22:05 ` thinker.li [this message]
2024-02-03 0:46 ` [RFC bpf-next v4 3/6] bpf: Remove an unnecessary check Martin KaFai Lau
2024-02-03 1:03 ` Kui-Feng Lee
2024-02-02 22:05 ` [RFC bpf-next v4 4/6] bpf: add btf pointer to struct bpf_ctx_arg_aux thinker.li
2024-02-02 22:05 ` [RFC bpf-next v4 5/6] bpf: Create argument information for nullable arguments thinker.li
2024-02-03 0:40 ` Martin KaFai Lau
2024-02-03 1:57 ` Kui-Feng Lee
2024-02-04 0:21 ` Kui-Feng Lee
2024-02-05 1:53 ` Kui-Feng Lee
2024-02-02 22:05 ` [RFC bpf-next v4 6/6] selftests/bpf: Test PTR_MAYBE_NULL arguments of struct_ops operators thinker.li
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