linux-kernel - Re: [PATCHv3 perf/core 2/7] tools lib bpf: use _

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Message-ID: <1d2b9c76-32cf-f810-22f2-00dc1c679260@huawei.com>
Date:   Fri, 9 Dec 2016 11:28:19 +0800
From:   "Wangnan (F)" <wangnan0@...wei.com>
To:     Joe Stringer <joe@....org>, <linux-kernel@...r.kernel.org>
CC:     <ast@...com>, <daniel@...earbox.net>, <acme@...nel.org>,
        <netdev@...r.kernel.org>
Subject: Re: [PATCHv3 perf/core 2/7] tools lib bpf: use __u32 from
 linux/types.h



On 2016/12/9 10:46, Joe Stringer wrote:
> Fixes the following issue when building without access to 'u32' type:
>
> ./tools/lib/bpf/bpf.h:27:23: error: unknown type name ‘u32’
>
> Signed-off-by: Joe Stringer <joe@....org>
> ---
> v3: Split from "tools lib bpf: Sync with samples/bpf/libbpf"
> ---
>   tools/lib/bpf/bpf.c | 4 ++--
>   tools/lib/bpf/bpf.h | 4 ++--
>   2 files changed, 4 insertions(+), 4 deletions(-)

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

> diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
> index 8143536b462a..89e8e8e5b60e 100644
> --- a/tools/lib/bpf/bpf.c
> +++ b/tools/lib/bpf/bpf.c
> @@ -70,7 +70,7 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size,
>   
>   int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
>   		     size_t insns_cnt, char *license,
> -		     u32 kern_version, char *log_buf, size_t log_buf_sz)
> +		     __u32 kern_version, char *log_buf, size_t log_buf_sz)
>   {
>   	int fd;
>   	union bpf_attr attr;
> @@ -98,7 +98,7 @@ int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
>   }
>   
>   int bpf_map_update_elem(int fd, void *key, void *value,
> -			u64 flags)
> +			__u64 flags)
>   {
>   	union bpf_attr attr;
>   
> diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
> index 253c3dbb06b4..61130170a6ad 100644
> --- a/tools/lib/bpf/bpf.h
> +++ b/tools/lib/bpf/bpf.h
> @@ -30,11 +30,11 @@ int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_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,
> -		     u32 kern_version, char *log_buf,
> +		     __u32 kern_version, char *log_buf,
>   		     size_t log_buf_sz);
>   
>   int bpf_map_update_elem(int fd, void *key, void *value,
> -			u64 flags);
> +			__u64 flags);
>   
>   int bpf_map_lookup_elem(int fd, void *key, void *value);
>   int bpf_map_delete_elem(int fd, void *key);