Hi

On Wed, Sep 7, 2022 at 2:05 AM Arwed Meyer <arwed.me...@gmx.de> wrote:

> Make source buffers const for char be write functions.
> This allows using buffers returned by fifo as buf parameter and source
> buffer
> should not be changed by write functions anyway.
>
> Signed-off-by: Arwed Meyer <arwed.me...@gmx.de>
>

Reviewed-by: Marc-André Lureau <marcandre.lur...@redhat.com>

---
>  chardev/char.c          | 4 ++--
>  include/chardev/char.h  | 4 ++--
>  include/sysemu/replay.h | 2 +-
>  replay/replay-char.c    | 2 +-
>  stubs/replay-tools.c    | 2 +-
>  5 files changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/chardev/char.c b/chardev/char.c
> index 0169d8dde4..b005df3ccf 100644
> --- a/chardev/char.c
> +++ b/chardev/char.c
> @@ -193,7 +193,7 @@ int qemu_chr_be_can_write(Chardev *s)
>      return be->chr_can_read(be->opaque);
>  }
>
> -void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len)
> +void qemu_chr_be_write_impl(Chardev *s, const uint8_t *buf, int len)
>  {
>      CharBackend *be = s->be;
>
> @@ -202,7 +202,7 @@ void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf,
> int len)
>      }
>  }
>
> -void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len)
> +void qemu_chr_be_write(Chardev *s, const uint8_t *buf, int len)
>  {
>      if (qemu_chr_replay(s)) {
>          if (replay_mode == REPLAY_MODE_PLAY) {
> diff --git a/include/chardev/char.h b/include/chardev/char.h
> index a319b5fdff..44cd82e405 100644
> --- a/include/chardev/char.h
> +++ b/include/chardev/char.h
> @@ -186,7 +186,7 @@ int qemu_chr_be_can_write(Chardev *s);
>   * the caller should call @qemu_chr_be_can_write to determine how much
> data
>   * the front end can currently accept.
>   */
> -void qemu_chr_be_write(Chardev *s, uint8_t *buf, int len);
> +void qemu_chr_be_write(Chardev *s, const uint8_t *buf, int len);
>
>  /**
>   * qemu_chr_be_write_impl:
> @@ -195,7 +195,7 @@ void qemu_chr_be_write(Chardev *s, uint8_t *buf, int
> len);
>   *
>   * Implementation of back end writing. Used by replay module.
>   */
> -void qemu_chr_be_write_impl(Chardev *s, uint8_t *buf, int len);
> +void qemu_chr_be_write_impl(Chardev *s, const uint8_t *buf, int len);
>
>  /**
>   * qemu_chr_be_update_read_handlers:
> diff --git a/include/sysemu/replay.h b/include/sysemu/replay.h
> index 73dee9ccdf..7ec0882b50 100644
> --- a/include/sysemu/replay.h
> +++ b/include/sysemu/replay.h
> @@ -198,7 +198,7 @@ uint64_t blkreplay_next_id(void);
>  /*! Registers char driver to save it's events */
>  void replay_register_char_driver(struct Chardev *chr);
>  /*! Saves write to char device event to the log */
> -void replay_chr_be_write(struct Chardev *s, uint8_t *buf, int len);
> +void replay_chr_be_write(struct Chardev *s, const uint8_t *buf, int len);
>  /*! Writes char write return value to the replay log. */
>  void replay_char_write_event_save(int res, int offset);
>  /*! Reads char write return value from the replay log. */
> diff --git a/replay/replay-char.c b/replay/replay-char.c
> index d2025948cf..a31aded032 100644
> --- a/replay/replay-char.c
> +++ b/replay/replay-char.c
> @@ -48,7 +48,7 @@ void replay_register_char_driver(Chardev *chr)
>      char_drivers[drivers_count++] = chr;
>  }
>
> -void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
> +void replay_chr_be_write(Chardev *s, const uint8_t *buf, int len)
>  {
>      CharEvent *event = g_new0(CharEvent, 1);
>
> diff --git a/stubs/replay-tools.c b/stubs/replay-tools.c
> index f2e72bb225..3e8ca3212d 100644
> --- a/stubs/replay-tools.c
> +++ b/stubs/replay-tools.c
> @@ -53,7 +53,7 @@ void replay_register_char_driver(struct Chardev *chr)
>  {
>  }
>
> -void replay_chr_be_write(struct Chardev *s, uint8_t *buf, int len)
> +void replay_chr_be_write(struct Chardev *s, const uint8_t *buf, int len)
>  {
>      abort();
>  }
> --
> 2.34.1
>
>
>

-- 
Marc-André Lureau

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