linux-kernel - Re: [PATCH net-next v5 04/11] bpf: Use bpf_load

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Date:   Fri, 10 Feb 2017 10:25:58 +0800
From:   "Wangnan (F)" <wangnan0@...wei.com>
To:     Mickaël Salaün <mic@...ikod.net>,
        <linux-kernel@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        "David S . Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH net-next v5 04/11] bpf: Use bpf_load_program() from the
 library



On 2017/2/10 7:21, Mickaël Salaün wrote:
> Replace bpf_prog_load() with bpf_load_program() calls.
>
> Signed-off-by: Mickaël Salaün <mic@...ikod.net>
> Cc: Alexei Starovoitov <ast@...com>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Cc: Shuah Khan <shuah@...nel.org>
> ---
>   tools/lib/bpf/bpf.c                         |  6 +++---
>   tools/lib/bpf/bpf.h                         |  4 ++--
>   tools/testing/selftests/bpf/Makefile        |  4 +++-
>   tools/testing/selftests/bpf/bpf_sys.h       | 21 ---------------------
>   tools/testing/selftests/bpf/test_tag.c      |  6 ++++--
>   tools/testing/selftests/bpf/test_verifier.c |  8 +++++---
>   6 files changed, 17 insertions(+), 32 deletions(-)
>
> diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
> index 3ddb58a36d3c..58ce252073fa 100644
> --- a/tools/lib/bpf/bpf.c
> +++ b/tools/lib/bpf/bpf.c
> @@ -42,7 +42,7 @@
>   # endif
>   #endif
>   
> -static __u64 ptr_to_u64(void *ptr)
> +static __u64 ptr_to_u64(const void *ptr)
>   {
>   	return (__u64) (unsigned long) ptr;
>   }
> @@ -69,8 +69,8 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size,
>   	return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
>   }
>   
> -int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
> -		     size_t insns_cnt, char *license,
> +int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
> +		     size_t insns_cnt, const char *license,
>   		     __u32 kern_version, char *log_buf, size_t log_buf_sz)
>   {
>   	int fd;
> diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
> index a2f9853dd882..bc959a2de023 100644
> --- a/tools/lib/bpf/bpf.h
> +++ b/tools/lib/bpf/bpf.h
> @@ -28,8 +28,8 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
>   
>   /* Recommend log buffer size */
>   #define BPF_LOG_BUF_SIZE 65536
> -int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
> -		     size_t insns_cnt, char *license,
> +int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
> +		     size_t insns_cnt, const char *license,
>   		     __u32 kern_version, char *log_buf,
>   		     size_t log_buf_sz);
>   

For libbpf changes:

Acked-by Wang Nan <wangnan0@...wei.com>

Thank you.