[Qemu-devel] [PATCH] configure: Remove unused CONFIG_SIGEV_THREAD_ID switch

[Qemu-devel] [PATCH] configure: Remove unused CONFIG_SIGEV_THREAD_ID switch

[Thomas Huth]

The CONFIG_SIGEV_THREAD_ID switch is unused since the related code
has been removed by commit 6d327171551a12b937c5718073b9848d0274c74d
("aio / timers: Remove alarm timers"), so it can safely be removed
nowadays.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 configure | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/configure b/configure
index 8c2f90b..469aa45 100755
--- a/configure
+++ b/configure
@@ -4178,24 +4178,6 @@ if compile_prog "" "" ; then
 fi
 
 ##########################################
-# check if we have usable SIGEV_THREAD_ID
-
-sigev_thread_id=no
-cat > $TMPC << EOF
-#include <signal.h>
-int main(void) {
-  struct sigevent ev;
-  ev.sigev_notify = SIGEV_THREAD_ID;
-  ev._sigev_un._tid = 0;
-  asm volatile("" : : "g"(&ev));
-  return 0;
-}
-EOF
-if compile_prog "" "" ; then
-    sigev_thread_id=yes
-fi
-
-##########################################
 # check if trace backend exists
 
 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
@@ -4862,7 +4844,6 @@ echo "preadv support    $preadv"
 echo "fdatasync         $fdatasync"
 echo "madvise           $madvise"
 echo "posix_madvise     $posix_madvise"
-echo "sigev_thread_id   $sigev_thread_id"
 echo "uuid support      $uuid"
 echo "libcap-ng support $cap_ng"
 echo "vhost-net support $vhost_net"
@@ -5277,9 +5258,6 @@ fi
 if test "$posix_madvise" = "yes" ; then
   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
 fi
-if test "$sigev_thread_id" = "yes" ; then
-  echo "CONFIG_SIGEV_THREAD_ID=y" >> $config_host_mak
-fi
 
 if test "$spice" = "yes" ; then
   echo "CONFIG_SPICE=y" >> $config_host_mak
-- 
1.8.3.1

Re: [Qemu-devel] [PATCH] configure: Remove unused CONFIG_SIGEV_THREAD_ID switch

[Paolo Bonzini]

On 10/06/2016 17:04, Thomas Huth wrote:
> The CONFIG_SIGEV_THREAD_ID switch is unused since the related code
> has been removed by commit 6d327171551a12b937c5718073b9848d0274c74d
> ("aio / timers: Remove alarm timers"), so it can safely be removed
> nowadays.

Queued, thanks.

Paolo

> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  configure | 22 ----------------------
>  1 file changed, 22 deletions(-)
> 
> diff --git a/configure b/configure
> index 8c2f90b..469aa45 100755
> --- a/configure
> +++ b/configure
> @@ -4178,24 +4178,6 @@ if compile_prog "" "" ; then
>  fi
>  
>  ##########################################
> -# check if we have usable SIGEV_THREAD_ID
> -
> -sigev_thread_id=no
> -cat > $TMPC << EOF
> -#include <signal.h>
> -int main(void) {
> -  struct sigevent ev;
> -  ev.sigev_notify = SIGEV_THREAD_ID;
> -  ev._sigev_un._tid = 0;
> -  asm volatile("" : : "g"(&ev));
> -  return 0;
> -}
> -EOF
> -if compile_prog "" "" ; then
> -    sigev_thread_id=yes
> -fi
> -
> -##########################################
>  # check if trace backend exists
>  
>  $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
> @@ -4862,7 +4844,6 @@ echo "preadv support    $preadv"
>  echo "fdatasync         $fdatasync"
>  echo "madvise           $madvise"
>  echo "posix_madvise     $posix_madvise"
> -echo "sigev_thread_id   $sigev_thread_id"
>  echo "uuid support      $uuid"
>  echo "libcap-ng support $cap_ng"
>  echo "vhost-net support $vhost_net"
> @@ -5277,9 +5258,6 @@ fi
>  if test "$posix_madvise" = "yes" ; then
>    echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
>  fi
> -if test "$sigev_thread_id" = "yes" ; then
> -  echo "CONFIG_SIGEV_THREAD_ID=y" >> $config_host_mak
> -fi
>  
>  if test "$spice" = "yes" ; then
>    echo "CONFIG_SPICE=y" >> $config_host_mak
>