[PATCH bpf-next] bpf: Remove redundant assignment to meta.seq in __task_seq_show()

From: Yuntao Wang
Date: Sun Apr 10 2022 - 02:14:29 EST


The seq argument is assigned to meta.seq twice, the second one is
redundant, remove it.

This patch also removes a redundant space in bpf_iter_link_attach().

Signed-off-by: Yuntao Wang <ytcoode@xxxxxxxxx>
---
kernel/bpf/bpf_iter.c | 2 +-
kernel/bpf/task_iter.c | 1 -
2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/bpf/bpf_iter.c b/kernel/bpf/bpf_iter.c
index dea920b3b840..d5d96ceca105 100644
--- a/kernel/bpf/bpf_iter.c
+++ b/kernel/bpf/bpf_iter.c
@@ -545,7 +545,7 @@ int bpf_iter_link_attach(const union bpf_attr *attr, bpfptr_t uattr,
bpf_link_init(&link->link, BPF_LINK_TYPE_ITER, &bpf_iter_link_lops, prog);
link->tinfo = tinfo;

- err = bpf_link_prime(&link->link, &link_primer);
+ err = bpf_link_prime(&link->link, &link_primer);
if (err) {
kfree(link);
return err;
diff --git a/kernel/bpf/task_iter.c b/kernel/bpf/task_iter.c
index d94696198ef8..8c921799def4 100644
--- a/kernel/bpf/task_iter.c
+++ b/kernel/bpf/task_iter.c
@@ -99,7 +99,6 @@ static int __task_seq_show(struct seq_file *seq, struct task_struct *task,
if (!prog)
return 0;

- meta.seq = seq;
ctx.meta = &meta;
ctx.task = task;
return bpf_iter_run_prog(prog, &ctx);
--
2.35.1