From 683f91a287c25ee3175013a69fb36925dd656fea Mon Sep 17 00:00:00 2001
From: Marek Kulik <mkulik@redhat.com>
Date: Wed, 25 Aug 2021 09:15:24 +0200
Subject: [PATCH 01/10] Fix mysql_setpermission hostname logic

Changes:
- Don't include port in connection parameters with 'localhost' hostname

More info:
The hostname, if not specified or specified as '' or 'localhost', will default
to a MySQL server running on the local machine using the default for the UNIX socket.
To connect to a MySQL server on the local machine via TCP, you must specify the
loopback IP address (127.0.0.1) as the host.

Reported issue: https://bugzilla.redhat.com/show_bug.cgi?id=1976224
---
 scripts/mysql_setpermission.sh | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/mysql_setpermission.sh b/scripts/mysql_setpermission.sh
index 71462d28622..01b3d5e7e90 100644
--- a/scripts/mysql_setpermission.sh
+++ b/scripts/mysql_setpermission.sh
@@ -52,6 +52,7 @@ use strict;
 use vars qw($dbh $sth $hostname $opt_user $opt_password $opt_help $opt_host
 	    $opt_socket $opt_port $host $version);
 
+my $sqlport = "";
 my $sqlhost = "";
 my $user = "";
 
@@ -84,9 +85,13 @@ if ($opt_password eq '')
   print "\n";
 }
 
+# Using port argument with 'localhost' will cause an error
+if ($sqlhost ne "localhost") {
+  $sqlport = ":port=$opt_port";
+}
 
 # make the connection to MariaDB
-$dbh= DBI->connect("DBI:mysql:mysql:host=$sqlhost:port=$opt_port:mysql_socket=$opt_socket",$opt_user,$opt_password, {PrintError => 0}) ||
+$dbh= DBI->connect("DBI:mysql:mysql:host=$sqlhost$sqlport:mysql_socket=$opt_socket",$opt_user,$opt_password, {PrintError => 0}) ||
   die("Can't make a connection to the mysql server.\n The error: $DBI::errstr");
 
 # the start of the program

From c45aeeab38125e59c84c2d7a78e8465e0964e5b5 Mon Sep 17 00:00:00 2001
From: Marek Kulik <mkulik@redhat.com>
Date: Wed, 25 Aug 2021 09:18:29 +0200
Subject: [PATCH 02/10] Remove FLUSH PRIVILEGES from mysql_setpermission

FLUSH PRIVILEGES hasn't been needed for very many years.
---
 scripts/mysql_setpermission.sh | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/mysql_setpermission.sh b/scripts/mysql_setpermission.sh
index 01b3d5e7e90..7c0ef575db7 100644
--- a/scripts/mysql_setpermission.sh
+++ b/scripts/mysql_setpermission.sh
@@ -283,7 +283,6 @@ sub addall {
        $sth = $dbh->do("REVOKE ALL ON $db.* FROM \'$user\'\@\'$host\'") || die $dbh->errstr;
     }
     }
-  $dbh->do("FLUSH PRIVILEGES") || print STDERR "Can't flush privileges\n";
   print "Everything is inserted and mysql privileges have been reloaded.\n\n";
 }
 

From c9851d35adb1675ce204b2c77ac57da9023792ac Mon Sep 17 00:00:00 2001
From: Michael Widenius <monty@mariadb.org>
Date: Wed, 25 Aug 2021 22:12:15 +0300
Subject: [PATCH 03/10] Fixed failing maria.repair test

Backported patch from MariaDB 10.6
The issue was that the using session_mem_used to break a test does not
guarantee where the test breaks, which gives different results
depending on the environment or how MariaDB is compield.
---
 mysql-test/suite/maria/repair.result | 7 -------
 mysql-test/suite/maria/repair.test   | 2 ++
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/mysql-test/suite/maria/repair.result b/mysql-test/suite/maria/repair.result
index 296f251aa36..722d9f28712 100644
--- a/mysql-test/suite/maria/repair.result
+++ b/mysql-test/suite/maria/repair.result
@@ -29,12 +29,5 @@ CREATE TABLE t1 (i INT) ENGINE=Aria;
 INSERT INTO t1 VALUES (1);
 SET max_session_mem_used=50000;
 REPAIR LOCAL TABLE t1 USE_FRM;
-Table	Op	Msg_type	Msg_text
-t1	repair	error	Failed to open partially repaired table
-Warnings:
-Error	1290	The MariaDB server is running with the --max-thread-mem-used=50000 option so it cannot execute this statement
 REPAIR LOCAL TABLE t1;
-Table	Op	Msg_type	Msg_text
-test.t1	repair	Error	The MariaDB server is running with the --max-thread-mem-used=50000 option so it cannot execute this statement
-test.t1	repair	error	Corrupt
 DROP TABLE t1;
diff --git a/mysql-test/suite/maria/repair.test b/mysql-test/suite/maria/repair.test
index 13165269b76..571f861c512 100644
--- a/mysql-test/suite/maria/repair.test
+++ b/mysql-test/suite/maria/repair.test
@@ -36,6 +36,8 @@ DROP TABLE t1;
 CREATE TABLE t1 (i INT) ENGINE=Aria;
 INSERT INTO t1 VALUES (1);
 SET max_session_mem_used=50000;
+--disable_result_log
 REPAIR LOCAL TABLE t1 USE_FRM;
 REPAIR LOCAL TABLE t1;
+--enable_result_log
 DROP TABLE t1;

From b378ddb3d3c3af75195d328018259369671bb029 Mon Sep 17 00:00:00 2001
From: Michael Widenius <monty@mariadb.org>
Date: Wed, 25 Aug 2021 22:16:19 +0300
Subject: [PATCH 04/10] MDEV 22785 Crash with prepared statements and NEXTVAL()

The problem was that a PREARE followed by a non prepared statement
using DEFAULT NEXT_VALUE() could change table->next_local to point to
a not persitent memory aria. The next EXECUTE would then try to use
the wrong pointer, which could cause a crash.
Fixed by reseting the pointer to it's old value when doing EXECUTE.
---
 BUILD/SETUP.sh                               |  2 +-
 mysql-test/suite/sql_sequence/default.result | 10 ++++++++++
 mysql-test/suite/sql_sequence/default.test   | 12 ++++++++++++
 sql/sql_base.cc                              | 20 +++++++++++++++-----
 4 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/BUILD/SETUP.sh b/BUILD/SETUP.sh
index 8a7238c359f..bbf3aba1438 100755
--- a/BUILD/SETUP.sh
+++ b/BUILD/SETUP.sh
@@ -211,7 +211,7 @@ fi
 
 max_no_embedded_configs="$SSL_LIBRARY --with-plugins=max"
 max_no_qc_configs="$SSL_LIBRARY --with-plugins=max --without-query-cache"
-max_configs="$SSL_LIBRARY --with-plugins=max --with-embedded-server --with-libevent --without-plugin=plugin_file_key_management --with-plugin-rocksdb=dynamic --with-plugin-test_sql_discovery=DYNAMIC"
+max_configs="$SSL_LIBRARY --with-plugins=max --with-embedded-server --with-libevent --without-plugin=plugin_file_key_management --with-plugin-rocksdb=dynamic --without-plugin-tokudb --with-plugin-test_sql_discovery=DYNAMIC"
 all_configs="$SSL_LIBRARY --with-plugins=max --with-embedded-server --with-innodb_plugin --with-libevent"
 
 #
diff --git a/mysql-test/suite/sql_sequence/default.result b/mysql-test/suite/sql_sequence/default.result
index 37d536d9020..2f048c9e4e2 100644
--- a/mysql-test/suite/sql_sequence/default.result
+++ b/mysql-test/suite/sql_sequence/default.result
@@ -185,3 +185,13 @@ ALTER TABLE t1 add column d int default next value for s_not_exits;
 ERROR 42S02: Table 'test.s_not_exits' doesn't exist
 drop table t1;
 drop sequence s1;
+#
+# MDEV 22785 Crash with prepared statements and NEXTVAL()
+#
+CREATE SEQUENCE s;
+CREATE TABLE t1 (id int NOT NULL DEFAULT NEXTVAL(s), PRIMARY KEY (id));
+PREPARE stmt FROM " INSERT INTO t1 () values ()";
+INSERT INTO t1 () values ();
+EXECUTE stmt;
+DROP TABLE t1;
+DROP SEQUENCE s;
diff --git a/mysql-test/suite/sql_sequence/default.test b/mysql-test/suite/sql_sequence/default.test
index 017165c1a80..e7c13211013 100644
--- a/mysql-test/suite/sql_sequence/default.test
+++ b/mysql-test/suite/sql_sequence/default.test
@@ -123,3 +123,15 @@ ALTER TABLE t1 add column c int;
 ALTER TABLE t1 add column d int default next value for s_not_exits;
 drop table t1;
 drop sequence s1;
+
+--echo #
+--echo # MDEV 22785 Crash with prepared statements and NEXTVAL()
+--echo #
+CREATE SEQUENCE s;
+CREATE TABLE t1 (id int NOT NULL DEFAULT NEXTVAL(s), PRIMARY KEY (id));
+PREPARE stmt FROM " INSERT INTO t1 () values ()";
+INSERT INTO t1 () values ();
+EXECUTE stmt;
+# Cleanup
+DROP TABLE t1;
+DROP SEQUENCE s;
diff --git a/sql/sql_base.cc b/sql/sql_base.cc
index 2b06cf27d9b..f5eb0857d54 100644
--- a/sql/sql_base.cc
+++ b/sql/sql_base.cc
@@ -4450,13 +4450,13 @@ bool table_already_fk_prelocked(TABLE_LIST *tl, LEX_CSTRING *db,
 }
 
 
-static bool internal_table_exists(TABLE_LIST *global_list,
-                                  const char *table_name)
+static TABLE_LIST *internal_table_exists(TABLE_LIST *global_list,
+                                         const char *table_name)
 {
   do
   {
     if (global_list->table_name.str == table_name)
-      return 1;
+      return global_list;
   } while ((global_list= global_list->next_global));
   return 0;
 }
@@ -4471,13 +4471,23 @@ add_internal_tables(THD *thd, Query_tables_list *prelocking_ctx,
 
   do
   {
+    TABLE_LIST *tmp __attribute__((unused));
     DBUG_PRINT("info", ("table name: %s", tables->table_name.str));
     /*
       Skip table if already in the list. Can happen with prepared statements
     */
-    if (tables->next_local &&
-        internal_table_exists(global_table_list, tables->table_name.str))
+    if ((tmp= internal_table_exists(global_table_list,
+                                    tables->table_name.str)))
+    {
+      /*
+        Use the original value for the next local, used by the
+        original prepared statement. We cannot trust the original
+        next_local value as it may have been changed by a previous
+        statement using the same table.
+      */
+      tables->next_local= tmp;
       continue;
+    }
 
     TABLE_LIST *tl= (TABLE_LIST *) thd->alloc(sizeof(TABLE_LIST));
     if (!tl)

From 228630f61ac10240c367176601bd05bdb20ea8e0 Mon Sep 17 00:00:00 2001
From: Daniel Black <daniel@mariadb.org>
Date: Wed, 25 Aug 2021 16:53:39 +1000
Subject: [PATCH 05/10] rocksdb: disable on arm64 except for Linux

Thanks to Theodore Brockman on Zulip for noticing
on an OSX ARM64 and testing this patch.

Per https://github.com/google/cpu_features/pull/150/files
CMAKE_SYSTEM_PROCESSOR is arm64 on Apple.

Without this, compulation error:

[ 80%] Building CXX object storage/rocksdb/CMakeFiles/rocksdblib.dir/rocksdb/util/crc32c.cc.o
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:500:18: error: use of undeclared identifier 'isSSE42'
  has_fast_crc = isSSE42();
                 ^
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:1230:7: error: use of undeclared identifier 'isSSE42'
  if (isSSE42()) {
      ^
/mariadb/storage/rocksdb/rocksdb/util/crc32c.cc:1231:9: error: use of undeclared identifier 'isPCLMULQDQ'
    if (isPCLMULQDQ()) {
        ^

This can be reverted when the RocksDB submodule is updated.

https://github.com/facebook/rocksdb/commit/ee4bd4780b321ddb5f92a0f4eb956f2a2ebd60dc
---
 storage/rocksdb/CMakeLists.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/storage/rocksdb/CMakeLists.txt b/storage/rocksdb/CMakeLists.txt
index e2b0d9df547..1db314b93db 100644
--- a/storage/rocksdb/CMakeLists.txt
+++ b/storage/rocksdb/CMakeLists.txt
@@ -44,6 +44,15 @@ IF (WIN32 AND CMAKE_SIZEOF_VOID_P EQUAL 4)
   SKIP_ROCKSDB_PLUGIN("32-Bit Windows are temporarily disabled")
 ENDIF()
 
+#
+# Also, disable on ARM64 when not Linux
+# Requires submodule update to v6.16.3
+# containing commit https://github.com/facebook/rocksdb/commit/ee4bd4780b321ddb5f92a0f4eb956f2a2ebd60dc
+#
+IF(CMAKE_SYSTEM_PROCESSOR MATCHES "(arm64|aarch64)" AND NOT CMAKE_SYSTEM_NAME STREQUAL "Linux")
+  SKIP_ROCKSDB_PLUGIN("ARM64 disabled on all except Linux")
+ENDIF()
+
 # This plugin needs recent C++ compilers (it is using C++11 features)
 # Skip build for the old compilers
 SET(CXX11_FLAGS)

From fe2a7048e7c7345f0e011ef800346d744402bb2d Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Thu, 26 Aug 2021 15:13:48 +0200
Subject: [PATCH 06/10] typo fixed

---
 extra/mariabackup/xtrabackup.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extra/mariabackup/xtrabackup.cc b/extra/mariabackup/xtrabackup.cc
index 6f4ad7d9e17..12cfdb6c284 100644
--- a/extra/mariabackup/xtrabackup.cc
+++ b/extra/mariabackup/xtrabackup.cc
@@ -3405,7 +3405,7 @@ static void xb_load_single_table_tablespace(const char *dirname,
 	delete file;
 
 	if (err != DB_SUCCESS && xtrabackup_backup && !is_empty_file) {
-		die("Failed to not validate first page of the file %s, error %d",name, (int)err);
+		die("Failed to validate first page of the file %s, error %d",name, (int)err);
 	}
 
 	ut_free(name);

From 600e4949062e848e035e2649792a8fed963e6a91 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Sun, 29 Aug 2021 09:33:00 +0200
Subject: [PATCH 07/10] mtr: fix the check where a combination is pre-selected

if all options from a combination from the combinations file are already
present in the server's list of options, then don't try to run tests
in other combinations from this file.

old behavior was: if at least one option from a combination is
already present in the list...
---
 mysql-test/lib/My/Options.pm | 22 +++++++---------------
 mysql-test/lib/mtr_cases.pm  |  6 ++++--
 2 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/mysql-test/lib/My/Options.pm b/mysql-test/lib/My/Options.pm
index 6e0efe862e7..5827e0666a6 100644
--- a/mysql-test/lib/My/Options.pm
+++ b/mysql-test/lib/My/Options.pm
@@ -140,24 +140,16 @@ sub diff {
 }
 
 
-sub is_set {
-  my ($opts, $set_opts)= @_;
+sub is_subset {
+  my ($set, $subset)= @_;
+  my %cache = map { _split_option($_) } @$set;
 
-  foreach my $opt (@$opts){
-
-    my ($opt_name1, $value1)= _split_option($opt);
-
-    foreach my $set_opt (@$set_opts){
-      my ($opt_name2, $value2)= _split_option($set_opt);
-
-      if ($opt_name1 eq $opt_name2 and $value1 eq $value2){
-	# Option already set
-	return 1;
-      }
-    }
+  for (@$subset){
+    my ($name, $value)= _split_option($_);
+    return 0 unless exists $cache{$name} and $cache{$name} eq $value;
   }
 
-  return 0;
+  return 1;
 }
 
 
diff --git a/mysql-test/lib/mtr_cases.pm b/mysql-test/lib/mtr_cases.pm
index 8c94c281edf..27803ff1d85 100644
--- a/mysql-test/lib/mtr_cases.pm
+++ b/mysql-test/lib/mtr_cases.pm
@@ -623,8 +623,10 @@ sub make_combinations($$@)
   {
     # Skip all other combinations if the values they change
     # are already fixed in master_opt or slave_opt
-    if (My::Options::is_set($test->{master_opt}, $comb->{comb_opt}) &&
-        My::Options::is_set($test->{slave_opt}, $comb->{comb_opt}) ){
+    # (empty combinations are not considered a subset of anything)
+    if (@{$comb->{comb_opt}} &&
+        My::Options::is_subset($test->{master_opt}, $comb->{comb_opt}) &&
+        My::Options::is_subset($test->{slave_opt}, $comb->{comb_opt}) ){
 
       $test_combs->{$comb->{name}} = 2;
 

From 969edf02c5ba7cfef1dbf6f8257b79745205dd0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marko=20M=C3=A4kel=C3=A4?= <marko.makela@mariadb.com>
Date: Mon, 30 Aug 2021 11:10:43 +0300
Subject: [PATCH 08/10] Update libmariadb

---
 libmariadb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libmariadb b/libmariadb
index 0cc16f18c1d..42cb1e442c4 160000
--- a/libmariadb
+++ b/libmariadb
@@ -1 +1 @@
-Subproject commit 0cc16f18c1d87bbe6e360eaf578fcedeb9479114
+Subproject commit 42cb1e442c43902e2866bea38d15f2ed1f5d38b3

From fda704c82c982c554ca0f0d28cb08ca972c4ddd9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marko=20M=C3=A4kel=C3=A4?= <marko.makela@mariadb.com>
Date: Mon, 30 Aug 2021 11:52:59 +0300
Subject: [PATCH 09/10] Fix GCC 11 -Wmaybe-uninitialized for PLUGIN_PERFSCHEMA

init_mutex_v1_t: Stop lying that the mutex parameter is const.
GCC 11.2.0 assumes that it is and could complain about any mysql_mutex_t
being uninitialized even after mysql_mutex_init() as long as
PLUGIN_PERFSCHEMA is enabled.

init_rwlock_v1_t, init_cond_v1_t: Remove untruthful const qualifiers.

Note: init_socket_v1_t is expecting that the socket fd has already
been created before PSI_SOCKET_CALL(init_socket), and therefore that
parameter really is being treated as a pointer to const.
---
 include/mysql/psi/psi.h           | 6 +++---
 include/mysql/psi/psi_abi_v1.h.pp | 6 +++---
 mysys/psi_noop.c                  | 6 +++---
 storage/perfschema/pfs.cc         | 6 +++---
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/mysql/psi/psi.h b/include/mysql/psi/psi.h
index 3f7b04b0841..4fa9c3842a8 100644
--- a/include/mysql/psi/psi.h
+++ b/include/mysql/psi/psi.h
@@ -1134,7 +1134,7 @@ typedef void (*register_socket_v1_t)
   @return an instrumented mutex
 */
 typedef struct PSI_mutex* (*init_mutex_v1_t)
-  (PSI_mutex_key key, const void *identity);
+  (PSI_mutex_key key, void *identity);
 
 /**
   Mutex instrumentation destruction API.
@@ -1149,7 +1149,7 @@ typedef void (*destroy_mutex_v1_t)(struct PSI_mutex *mutex);
   @return an instrumented rwlock
 */
 typedef struct PSI_rwlock* (*init_rwlock_v1_t)
-  (PSI_rwlock_key key, const void *identity);
+  (PSI_rwlock_key key, void *identity);
 
 /**
   Rwlock instrumentation destruction API.
@@ -1164,7 +1164,7 @@ typedef void (*destroy_rwlock_v1_t)(struct PSI_rwlock *rwlock);
   @return an instrumented cond
 */
 typedef struct PSI_cond* (*init_cond_v1_t)
-  (PSI_cond_key key, const void *identity);
+  (PSI_cond_key key, void *identity);
 
 /**
   Cond instrumentation destruction API.
diff --git a/include/mysql/psi/psi_abi_v1.h.pp b/include/mysql/psi/psi_abi_v1.h.pp
index 17ac0271da2..162c5bcccd1 100644
--- a/include/mysql/psi/psi_abi_v1.h.pp
+++ b/include/mysql/psi/psi_abi_v1.h.pp
@@ -300,13 +300,13 @@ typedef void (*register_statement_v1_t)
 typedef void (*register_socket_v1_t)
   (const char *category, struct PSI_socket_info_v1 *info, int count);
 typedef struct PSI_mutex* (*init_mutex_v1_t)
-  (PSI_mutex_key key, const void *identity);
+  (PSI_mutex_key key, void *identity);
 typedef void (*destroy_mutex_v1_t)(struct PSI_mutex *mutex);
 typedef struct PSI_rwlock* (*init_rwlock_v1_t)
-  (PSI_rwlock_key key, const void *identity);
+  (PSI_rwlock_key key, void *identity);
 typedef void (*destroy_rwlock_v1_t)(struct PSI_rwlock *rwlock);
 typedef struct PSI_cond* (*init_cond_v1_t)
-  (PSI_cond_key key, const void *identity);
+  (PSI_cond_key key, void *identity);
 typedef void (*destroy_cond_v1_t)(struct PSI_cond *cond);
 typedef struct PSI_socket* (*init_socket_v1_t)
   (PSI_socket_key key, const my_socket *fd,
diff --git a/mysys/psi_noop.c b/mysys/psi_noop.c
index 1cf544be0e1..b20aae84849 100644
--- a/mysys/psi_noop.c
+++ b/mysys/psi_noop.c
@@ -86,7 +86,7 @@ static void register_socket_noop(const char *category NNN,
 }
 
 static PSI_mutex*
-init_mutex_noop(PSI_mutex_key key NNN, const void *identity NNN)
+init_mutex_noop(PSI_mutex_key key NNN, void *identity NNN)
 {
   return NULL;
 }
@@ -97,7 +97,7 @@ static void destroy_mutex_noop(PSI_mutex* mutex NNN)
 }
 
 static PSI_rwlock*
-init_rwlock_noop(PSI_rwlock_key key NNN, const void *identity NNN)
+init_rwlock_noop(PSI_rwlock_key key NNN, void *identity NNN)
 {
   return NULL;
 }
@@ -108,7 +108,7 @@ static void destroy_rwlock_noop(PSI_rwlock* rwlock NNN)
 }
 
 static PSI_cond*
-init_cond_noop(PSI_cond_key key NNN, const void *identity NNN)
+init_cond_noop(PSI_cond_key key NNN, void *identity NNN)
 {
   return NULL;
 }
diff --git a/storage/perfschema/pfs.cc b/storage/perfschema/pfs.cc
index dbad7e966a5..2a484bea7f2 100644
--- a/storage/perfschema/pfs.cc
+++ b/storage/perfschema/pfs.cc
@@ -1496,7 +1496,7 @@ static void register_socket_v1(const char *category,
   @sa PSI_v1::init_mutex.
 */
 static PSI_mutex*
-init_mutex_v1(PSI_mutex_key key, const void *identity)
+init_mutex_v1(PSI_mutex_key key, void *identity)
 {
   INIT_BODY_V1(mutex, key, identity);
 }
@@ -1519,7 +1519,7 @@ static void destroy_mutex_v1(PSI_mutex* mutex)
   @sa PSI_v1::init_rwlock.
 */
 static PSI_rwlock*
-init_rwlock_v1(PSI_rwlock_key key, const void *identity)
+init_rwlock_v1(PSI_rwlock_key key, void *identity)
 {
   INIT_BODY_V1(rwlock, key, identity);
 }
@@ -1542,7 +1542,7 @@ static void destroy_rwlock_v1(PSI_rwlock* rwlock)
   @sa PSI_v1::init_cond.
 */
 static PSI_cond*
-init_cond_v1(PSI_cond_key key, const void *identity)
+init_cond_v1(PSI_cond_key key, void *identity)
 {
   INIT_BODY_V1(cond, key, identity);
 }

From ceb40ef45b735f7e35aa87306b220a8493f4d754 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marko=20M=C3=A4kel=C3=A4?= <marko.makela@mariadb.com>
Date: Mon, 30 Aug 2021 14:26:27 +0300
Subject: [PATCH 10/10] MDEV-26504 THD::copy_db_to() fails to return true if
 THD::db is null

THD::copy_db_to(): Always return true if the output parameter
was left uninitialized. This fixes a regression that was caused
by commit 7d0d934ca642e485b2c008727dc20c83e26cce10 (MDEV-16473).

MariaDB Server 10.3 and later were unaffected by this bug
thanks to commit a7e352b54ddfaf91c92951d605cb02a4ffd2676b.

Possibly this bug only affects mysql_list_fields()
in the Embedded Server (libmysqld).

This bug was found by GCC 11.2.0 in CMAKE_BUILD_TYPE=RelWithDebInfo.
---
 sql/sql_class.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sql/sql_class.h b/sql/sql_class.h
index 50ab3c56ca9..5f871f9caf6 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -4003,10 +4003,8 @@ public:
         for any CTE references.
       */
       if (!lex->with_cte_resolution)
-      {
         my_message(ER_NO_DB_ERROR, ER(ER_NO_DB_ERROR), MYF(0));
-        return TRUE;
-      }
+      return TRUE;
     }
     else
     {