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Re: [Xen-devel] [PATCH for-4.5] libxl: expose #define to 4.5 and above



On Wed, 2014-12-03 at 10:41 +0000, Wei Liu wrote:
> In e3abab74 (libxl: un-constify return value of libxl_basename), the
> macro was exposed to releases < 4.5. However only new code is able to
> make use of that macro so it should be exposed to releases >= 4.5.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

Konrad, given that the original patch is in 4.5 (as of yesterday) we
should obviously take this one too.

> ---
>  tools/libxl/libxl.h       |    6 +++---
>  tools/libxl/libxl_utils.c |    2 +-
>  tools/libxl/libxl_utils.h |    2 +-
>  3 files changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
> index 291c190..0a123f1 100644
> --- a/tools/libxl/libxl.h
> +++ b/tools/libxl/libxl.h
> @@ -478,13 +478,13 @@ typedef struct libxl__ctx libxl_ctx;
>  #endif
>  
>  /*
> - * LIBXL_HAVE_CONST_LIBXL_BASENAME_RETURN_VALUE
> + * LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE
>   *
>   * The return value of libxl_basename is malloc'ed but the erroneously
>   * marked as "const" in releases before 4.5.
>   */
> -#if defined(LIBXL_API_VERSION) && LIBXL_API_VERSION < 0x040500
> -#define LIBXL_HAVE_CONST_LIBXL_BASENAME_RETURN_VALUE 1
> +#if !defined(LIBXL_API_VERSION) || LIBXL_API_VERSION >= 0x040500
> +#define LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE 1
>  #endif
>  
>  /*
> diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
> index 22119fc..7095b58 100644
> --- a/tools/libxl/libxl_utils.c
> +++ b/tools/libxl/libxl_utils.c
> @@ -19,7 +19,7 @@
>  
>  #include "libxl_internal.h"
>  
> -#ifdef LIBXL_HAVE_CONST_LIBXL_BASENAME_RETURN_VALUE
> +#ifndef LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE
>  const
>  #endif
>  char *libxl_basename(const char *name)
> diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
> index 8277eb9..acacdd9 100644
> --- a/tools/libxl/libxl_utils.h
> +++ b/tools/libxl/libxl_utils.h
> @@ -18,7 +18,7 @@
>  
>  #include "libxl.h"
>  
> -#ifdef LIBXL_HAVE_CONST_LIBXL_BASENAME_RETURN_VALUE
> +#ifndef LIBXL_HAVE_NONCONST_LIBXL_BASENAME_RETURN_VALUE
>  const
>  #endif
>  char *libxl_basename(const char *name); /* returns string from strdup */



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