[glibc] nptl: Remove unnecessary forwarding of pthread_cond_clockwait from libc

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4a8f6d3155e60c19158208ee14022f04c8b0334d

commit 4a8f6d3155e60c19158208ee14022f04c8b0334d
Author: Mike Crowe <mac@mcrowe.com>
Date:   Wed Jul 17 14:51:08 2019 -0300

    nptl: Remove unnecessary forwarding of pthread_cond_clockwait from libc
    
    In afe4de7d283ebd88157126c5494ce1796194c16e, I added forwarding functions
    from libc to libpthread for __pthread_cond_clockwait and
    pthread_cond_clockwait to mirror those for pthread_cond_timedwait. These
    are unnecessary[1], since these functions aren't (yet) being called from
    within libc itself. Let's remove them.
    
          * nptl/forward.c: Remove unnecessary __pthread_cond_clockwait and
    	pthread_cond_clockwait forwarding functions.  There are no internal
    	users, so it is unnecessary to expose these functions in libc.so.
    	* sysdeps/nptl/pthread-functions.h (pthread_functions): Remove
    	unnecessary ptr___pthread_cond_clockwait member.
    	* nptl/nptl-init.c (pthread_functions): Remove assignment of
    	removed member.
    
    Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
    
    [1] https://sourceware.org/ml/libc-alpha/2017-10/msg00082.html

Diff:
---
 ChangeLog                        | 10 ++++++++++
 nptl/forward.c                   |  5 -----
 nptl/nptl-init.c                 |  1 -
 sysdeps/nptl/pthread-functions.h |  4 ----
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 2851b39..0f10e41 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2019-07-18  Mike Crowe  <mac@mcrowe.com>
+
+	* nptl/forward.c: Remove unnecessary __pthread_cond_clockwait and
+	pthread_cond_clockwait forwarding functions.  There are no internal
+	users, so it is unnecessary to expose these functions in libc.so.
+	* sysdeps/nptl/pthread-functions.h (pthread_functions): Remove
+	unnecessary ptr___pthread_cond_clockwait member.
+	* nptl/nptl-init.c (pthread_functions): Remove assignment of
+	removed member.
+
 2019-07-17  Rafal Luzynski  <digitalfreak@lingonborough.com>
 
 	[BZ #21897]
diff --git a/nptl/forward.c b/nptl/forward.c
index 50f358f..ed1e7d0 100644
--- a/nptl/forward.c
+++ b/nptl/forward.c
@@ -164,11 +164,6 @@ FORWARD (__pthread_cond_timedwait,
 	  const struct timespec *abstime), (cond, mutex, abstime), 0)
 versioned_symbol (libc, __pthread_cond_timedwait, pthread_cond_timedwait,
 		  GLIBC_2_3_2);
-FORWARD (__pthread_cond_clockwait,
-	 (pthread_cond_t *cond, pthread_mutex_t *mutex, clockid_t clockid,
-	  const struct timespec *abstime), (cond, mutex, clockid, abstime),
-	 0)
-weak_alias (__pthread_cond_clockwait, pthread_cond_clockwait);
 
 
 FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
index 9c2a3d7..73935f8 100644
--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@@ -95,7 +95,6 @@ static const struct pthread_functions pthread_functions =
     .ptr___pthread_cond_signal = __pthread_cond_signal,
     .ptr___pthread_cond_wait = __pthread_cond_wait,
     .ptr___pthread_cond_timedwait = __pthread_cond_timedwait,
-    .ptr___pthread_cond_clockwait = __pthread_cond_clockwait,
 # if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_3_2)
     .ptr___pthread_cond_broadcast_2_0 = __pthread_cond_broadcast_2_0,
     .ptr___pthread_cond_destroy_2_0 = __pthread_cond_destroy_2_0,
diff --git a/sysdeps/nptl/pthread-functions.h b/sysdeps/nptl/pthread-functions.h
index cfa9660..cd5e94d 100644
--- a/sysdeps/nptl/pthread-functions.h
+++ b/sysdeps/nptl/pthread-functions.h
@@ -55,10 +55,6 @@ struct pthread_functions
   int (*ptr___pthread_cond_wait) (pthread_cond_t *, pthread_mutex_t *);
   int (*ptr___pthread_cond_timedwait) (pthread_cond_t *, pthread_mutex_t *,
 				       const struct timespec *);
-  int (*ptr___pthread_cond_clockwait) (pthread_cond_t *,
-				       pthread_mutex_t *,
-				       clockid_t,
-				       const struct timespec *);
   int (*ptr___pthread_cond_broadcast_2_0) (pthread_cond_2_0_t *);
   int (*ptr___pthread_cond_destroy_2_0) (pthread_cond_2_0_t *);
   int (*ptr___pthread_cond_init_2_0) (pthread_cond_2_0_t *,