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,
sdf@google.com, yonghong.song@linux.dev
Cc: sinquersw@gmail.com, kuifeng@meta.com,
Kui-Feng Lee <thinker.li@gmail.com>
Subject: [RFC bpf-next v2 3/6] bpf: rename bpf_copy_to_user().
Date: Thu, 10 Aug 2023 21:31:24 -0700 [thread overview]
Message-ID: <20230811043127.1318152-4-thinker.li@gmail.com> (raw)
In-Reply-To: <20230811043127.1318152-1-thinker.li@gmail.com>
From: Kui-Feng Lee <thinker.li@gmail.com>
Rename bpf_copy_to_user() to avoid confliction with the BPF kfunc.
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
---
kernel/bpf/syscall.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 7f4e8c357a6a..81b6e60cc030 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -3297,8 +3297,8 @@ static void bpf_raw_tp_link_show_fdinfo(const struct bpf_link *link,
raw_tp_link->btp->tp->name);
}
-static int bpf_copy_to_user(char __user *ubuf, const char *buf, u32 ulen,
- u32 len)
+static int _bpf_copy_to_user(char __user *ubuf, const char *buf, u32 ulen,
+ u32 len)
{
if (ulen >= len + 1) {
if (copy_to_user(ubuf, buf, len + 1))
@@ -3334,7 +3334,7 @@ static int bpf_raw_tp_link_fill_link_info(const struct bpf_link *link,
if (!ubuf)
return 0;
- return bpf_copy_to_user(ubuf, tp_name, ulen, tp_len);
+ return _bpf_copy_to_user(ubuf, tp_name, ulen, tp_len);
}
static const struct bpf_link_ops bpf_raw_tp_link_lops = {
@@ -3388,7 +3388,7 @@ static int bpf_perf_link_fill_common(const struct perf_event *event,
if (buf) {
len = strlen(buf);
- err = bpf_copy_to_user(uname, buf, ulen, len);
+ err = _bpf_copy_to_user(uname, buf, ulen, len);
if (err)
return err;
} else {
--
2.34.1
next prev parent reply other threads:[~2023-08-11 4:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-11 4:31 [RFC bpf-next v2 0/6] Sleepable BPF programs on cgroup {get,set}sockopt thinker.li
2023-08-11 4:31 ` [RFC bpf-next v2 1/6] bpf: enable sleepable BPF programs attached to cgroup/{get,set}sockopt thinker.li
2023-08-11 23:01 ` Stanislav Fomichev
2023-08-11 23:17 ` Kui-Feng Lee
2023-08-11 23:22 ` Kui-Feng Lee
2023-08-11 4:31 ` [RFC bpf-next v2 2/6] bpf: Prevent BPF programs from access the buffer pointed by user_optval thinker.li
2023-08-11 6:27 ` Yonghong Song
2023-08-11 16:01 ` Kui-Feng Lee
2023-08-11 4:31 ` thinker.li [this message]
2023-08-11 4:31 ` [RFC bpf-next v2 4/6] bpf: Provide bpf_copy_from_user() and bpf_copy_to_user() thinker.li
2023-08-11 23:05 ` Stanislav Fomichev
2023-08-11 23:27 ` Kui-Feng Lee
2023-08-11 23:31 ` Kui-Feng Lee
2023-08-14 17:07 ` Stanislav Fomichev
2023-08-14 19:20 ` Kui-Feng Lee
2023-08-14 20:16 ` Stanislav Fomichev
2023-08-11 4:31 ` [RFC bpf-next v2 5/6] bpf: Add a new dynptr type for CGRUP_SOCKOPT thinker.li
2023-08-11 4:31 ` [RFC bpf-next v2 6/6] bpf: Add test cases for sleepable BPF programs of the CGROUP_SOCKOPT type thinker.li
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