On 9 December 2014 at 09:44, Maxim Uvarov <[email protected]> wrote:
> Use helper function to get socket fd and add locks.
>
> Signed-off-by: Maxim Uvarov <[email protected]>
> Reviewed-by: Stuart Haslam <[email protected]>

Reviewed-by: Victor Kamensky <[email protected]>

> ---
>  platform/linux-generic/odp_packet_io.c | 34 
> ++++++++++++++++++++++++----------
>  1 file changed, 24 insertions(+), 10 deletions(-)
>
> diff --git a/platform/linux-generic/odp_packet_io.c 
> b/platform/linux-generic/odp_packet_io.c
> index 3b7869f..c50e76a 100644
> --- a/platform/linux-generic/odp_packet_io.c
> +++ b/platform/linux-generic/odp_packet_io.c
> @@ -551,20 +551,27 @@ int odp_pktio_set_mtu(odp_pktio_t id, int mtu)
>                 return -1;
>         }
>
> -       if (entry->s.pkt_sock_mmap.sockfd)
> -               sockfd = entry->s.pkt_sock_mmap.sockfd;
> -       else
> -               sockfd = entry->s.pkt_sock.sockfd;
> +       lock_entry(entry);
>
> -       strncpy(ifr.ifr_name, entry->s.name, IFNAMSIZ);
> +       if (odp_unlikely(is_free(entry))) {
> +               unlock_entry(entry);
> +               ODP_DBG("already freed pktio\n");
> +               return -1;
> +       }
> +
> +       sockfd = sockfd_from_pktio_entry(entry);
> +       strncpy(ifr.ifr_name, entry->s.name, IFNAMSIZ - 1);
> +       ifr.ifr_name[IFNAMSIZ - 1] = 0;
>         ifr.ifr_mtu = mtu;
>
>         ret = ioctl(sockfd, SIOCSIFMTU, (caddr_t)&ifr);
>         if (ret < 0) {
>                 ODP_DBG("ioctl SIOCSIFMTU error\n");
> +               unlock_entry(entry);
>                 return -1;
>         }
>
> +       unlock_entry(entry);
>         return 0;
>  }
>
> @@ -581,19 +588,26 @@ int odp_pktio_mtu(odp_pktio_t id)
>                 return -1;
>         }
>
> -       if (entry->s.pkt_sock_mmap.sockfd)
> -               sockfd = entry->s.pkt_sock_mmap.sockfd;
> -       else
> -               sockfd = entry->s.pkt_sock.sockfd;
> +       lock_entry(entry);
>
> -       strncpy(ifr.ifr_name, entry->s.name, IFNAMSIZ);
> +       if (odp_unlikely(is_free(entry))) {
> +               unlock_entry(entry);
> +               ODP_DBG("already freed pktio\n");
> +               return -1;
> +       }
> +
> +       sockfd = sockfd_from_pktio_entry(entry);
> +       strncpy(ifr.ifr_name, entry->s.name, IFNAMSIZ - 1);
> +       ifr.ifr_name[IFNAMSIZ - 1] = 0;
>
>         ret = ioctl(sockfd, SIOCGIFMTU, &ifr);
>         if (ret < 0) {
>                 ODP_DBG("ioctl SIOCGIFMTU error\n");
> +               unlock_entry(entry);
>                 return -1;
>         }
>
> +       unlock_entry(entry);
>         return ifr.ifr_mtu;
>  }
>
> --
> 1.8.5.1.163.gd7aced9
>
>
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