linux-kernel - Re: [PATCH bpf-next v2 6/8] bpf: Update selftests for local

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Date:   Wed, 4 Nov 2020 00:16:50 +0000
From:   Song Liu <songliubraving@...com>
To:     KP Singh <kpsingh@...omium.org>
CC:     open list <linux-kernel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin Lau <kafai@...com>, Paul Turner <pjt@...gle.com>,
        Jann Horn <jannh@...gle.com>, Hao Luo <haoluo@...gle.com>
Subject: Re: [PATCH bpf-next v2 6/8] bpf: Update selftests for local_storage
 to use vmlinux.h



> On Nov 3, 2020, at 7:31 AM, KP Singh <kpsingh@...omium.org> wrote:
> 
> From: KP Singh <kpsingh@...gle.com>
> 
> With the fixing of BTF pruning of embedded types being fixed, the test
> can be simplified to use vmlinux.h
> 
> Signed-off-by: KP Singh <kpsingh@...gle.com>

Acked-by: Song Liu <songliubraving@...com>

> ---
> .../selftests/bpf/progs/local_storage.c       | 20 +------------------
> 1 file changed, 1 insertion(+), 19 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/progs/local_storage.c b/tools/testing/selftests/bpf/progs/local_storage.c
> index 09529e33be98..ef3822bc7542 100644
> --- a/tools/testing/selftests/bpf/progs/local_storage.c
> +++ b/tools/testing/selftests/bpf/progs/local_storage.c
> @@ -4,9 +4,8 @@
>  * Copyright 2020 Google LLC.
>  */
> 
> +#include "vmlinux.h"
> #include <errno.h>
> -#include <linux/bpf.h>
> -#include <stdbool.h>
> #include <bpf/bpf_helpers.h>
> #include <bpf/bpf_tracing.h>
> 
> @@ -36,23 +35,6 @@ struct {
> 	__type(value, struct dummy_storage);
> } sk_storage_map SEC(".maps");
> 
> -/* TODO Use vmlinux.h once BTF pruning for embedded types is fixed.
> - */
> -struct sock {} __attribute__((preserve_access_index));
> -struct sockaddr {} __attribute__((preserve_access_index));
> -struct socket {
> -	struct sock *sk;
> -} __attribute__((preserve_access_index));
> -
> -struct inode {} __attribute__((preserve_access_index));
> -struct dentry {
> -	struct inode *d_inode;
> -} __attribute__((preserve_access_index));
> -struct file {
> -	struct inode *f_inode;
> -} __attribute__((preserve_access_index));
> -
> -
> SEC("lsm/inode_unlink")
> int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
> {
> -- 
> 2.29.1.341.ge80a0c044ae-goog
>