Fix build warning in pthread_rwlock_*

  Hi,

The first argument of elision_adapt and that of ELISION_*LOCK have
different signs since __elision_rwcount is singned char and the
argument of elision_adapt is uint8_t.  Modified elision_adapt to
accept int8_t instead of uint8_t.

Siddhesh

	* sysdeps/x86/nptl/elide.h (elision_adapt): Make first
	argument type int8_t.
  

Ping!

On Thu, Jun 19, 2014 at 10:21:38PM +0530, Siddhesh Poyarekar wrote:
> Hi,
> 
> The first argument of elision_adapt and that of ELISION_*LOCK have
> different signs since __elision_rwcount is singned char and the
> argument of elision_adapt is uint8_t.  Modified elision_adapt to
> accept int8_t instead of uint8_t.
> 
> Siddhesh
> 
> 	* sysdeps/x86/nptl/elide.h (elision_adapt): Make first
> 	argument type int8_t.
> 
> diff --git a/sysdeps/x86/nptl/elide.h b/sysdeps/x86/nptl/elide.h
> index 19f27e5..3979146 100644
> --- a/sysdeps/x86/nptl/elide.h
> +++ b/sysdeps/x86/nptl/elide.h
> @@ -26,7 +26,7 @@
>  /* Adapt elision with ADAPT_COUNT and STATUS and decide retries.  */
>  
>  static inline bool
> -elision_adapt(uint8_t *adapt_count, unsigned int status)
> +elision_adapt(int8_t *adapt_count, unsigned int status)
>  {
>    if (status & _XABORT_RETRY)
>      return false;
  

On 19 June 2014 17:51, Siddhesh Poyarekar <siddhesh@redhat.com> wrote:
> Hi,
>
> The first argument of elision_adapt and that of ELISION_*LOCK have
> different signs since __elision_rwcount is singned char and the
> argument of elision_adapt is uint8_t.  Modified elision_adapt to
> accept int8_t instead of uint8_t.
>
> Siddhesh
>
>         * sysdeps/x86/nptl/elide.h (elision_adapt): Make first
>         argument type int8_t.

This looks ok to me, although I don't have the hardware to test.

> diff --git a/sysdeps/x86/nptl/elide.h b/sysdeps/x86/nptl/elide.h
> index 19f27e5..3979146 100644
> --- a/sysdeps/x86/nptl/elide.h
> +++ b/sysdeps/x86/nptl/elide.h
> @@ -26,7 +26,7 @@
>  /* Adapt elision with ADAPT_COUNT and STATUS and decide retries.  */
>
>  static inline bool
> -elision_adapt(uint8_t *adapt_count, unsigned int status)
> +elision_adapt(int8_t *adapt_count, unsigned int status)
>  {
>    if (status & _XABORT_RETRY)
>      return false;
  

Siddhesh Poyarekar <siddhesh@redhat.com> writes:

> The first argument of elision_adapt and that of ELISION_*LOCK have
> different signs since __elision_rwcount is singned char and the

__elision_rwcount doesn't exist.

> argument of elision_adapt is uint8_t.  Modified elision_adapt to
> accept int8_t instead of uint8_t.

Make it signed char.

Andreas.
  

Yes, please.  I've also noticed that the elision code seems to have a lot
of little style violations (missing space before paren and the like) that
people didn't catch in review.  It could all use going over for clean
source and clean builds.