Re: [PATCH 6/6] hw/net/can: Make CanBusClientInfo::can_receive() return a boolean

[Alistair Francis]

On Thu, Mar 5, 2020 at 9:59 AM Philippe Mathieu-Daudé <address@hidden> wrote:
>
> The CanBusClientInfo::can_receive handler return whether the
> device can or can not receive new frames. Make it obvious by
> returning a boolean type.
>
> Signed-off-by: Philippe Mathieu-Daudé <address@hidden>

Reviewed-by: Alistair Francis <address@hidden>

Alistair

> ---
>  hw/net/can/can_sja1000.h | 2 +-
>  include/net/can_emu.h    | 2 +-
>  hw/net/can/can_sja1000.c | 8 ++++----
>  net/can/can_socketcan.c  | 4 ++--
>  4 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/hw/net/can/can_sja1000.h b/hw/net/can/can_sja1000.h
> index 220a622087..7ca9cd681e 100644
> --- a/hw/net/can/can_sja1000.h
> +++ b/hw/net/can/can_sja1000.h
> @@ -137,7 +137,7 @@ void can_sja_disconnect(CanSJA1000State *s);
>
>  int can_sja_init(CanSJA1000State *s, qemu_irq irq);
>
> -int can_sja_can_receive(CanBusClientState *client);
> +bool can_sja_can_receive(CanBusClientState *client);
>
>  ssize_t can_sja_receive(CanBusClientState *client,
>                          const qemu_can_frame *frames, size_t frames_cnt);
> diff --git a/include/net/can_emu.h b/include/net/can_emu.h
> index d4fc51b57d..fce9770928 100644
> --- a/include/net/can_emu.h
> +++ b/include/net/can_emu.h
> @@ -83,7 +83,7 @@ typedef struct CanBusClientState CanBusClientState;
>  typedef struct CanBusState CanBusState;
>
>  typedef struct CanBusClientInfo {
> -    int (*can_receive)(CanBusClientState *);
> +    bool (*can_receive)(CanBusClientState *);
>      ssize_t (*receive)(CanBusClientState *,
>          const struct qemu_can_frame *frames, size_t frames_cnt);
>  } CanBusClientInfo;
> diff --git a/hw/net/can/can_sja1000.c b/hw/net/can/can_sja1000.c
> index 39c78faf9b..ea915a023a 100644
> --- a/hw/net/can/can_sja1000.c
> +++ b/hw/net/can/can_sja1000.c
> @@ -733,21 +733,21 @@ uint64_t can_sja_mem_read(CanSJA1000State *s, hwaddr 
> addr, unsigned size)
>      return temp;
>  }
>
> -int can_sja_can_receive(CanBusClientState *client)
> +bool can_sja_can_receive(CanBusClientState *client)
>  {
>      CanSJA1000State *s = container_of(client, CanSJA1000State, bus_client);
>
>      if (s->clock & 0x80) { /* PeliCAN Mode */
>          if (s->mode & 0x01) { /* reset mode. */
> -            return 0;
> +            return false;
>          }
>      } else { /* BasicCAN mode */
>          if (s->control & 0x01) {
> -            return 0;
> +            return false;
>          }
>      }
>
> -    return 1; /* always return 1, when operation mode */
> +    return true; /* always return true, when operation mode */
>  }
>
>  ssize_t can_sja_receive(CanBusClientState *client, const qemu_can_frame 
> *frames,
> diff --git a/net/can/can_socketcan.c b/net/can/can_socketcan.c
> index 29bfacd4f8..807f31fcde 100644
> --- a/net/can/can_socketcan.c
> +++ b/net/can/can_socketcan.c
> @@ -110,9 +110,9 @@ static void can_host_socketcan_read(void *opaque)
>      }
>  }
>
> -static int can_host_socketcan_can_receive(CanBusClientState *client)
> +static bool can_host_socketcan_can_receive(CanBusClientState *client)
>  {
> -    return 1;
> +    return true;
>  }
>
>  static ssize_t can_host_socketcan_receive(CanBusClientState *client,
> --
> 2.21.1
>
>