liblockdep: Move dummy definition of prandom_u32() to fix missing declaration

debian/changelog

@@ -44,6 +44,8 @@ linux (4.7.2-1) UNRELEASED; urgency=medium
     - Enable EFI_SECURE_BOOT_SECURELEVEL
   * tcp: fix use after free in tcp_xmit_retransmit_queue() (CVE-2016-6828)
   * aacraid: Check size values after double-fetch from user (CVE-2016-6480)
+  * liblockdep: Move dummy definition of prandom_u32() to fix missing
+    declaration
 
   [ Martin Michlmayr ]
   * [armhf] Enable MMC_SDHCI_IPROC and HW_RANDOM_BCM2835 for BCM2835.

debian/patches/bugfix/all/liblockdep-fix-defined-but-not-used-warning-for-init.patch

@@ -16,13 +16,11 @@ Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
  tools/lib/lockdep/uinclude/linux/lockdep.h | 10 ----------
  2 files changed, 10 insertions(+), 10 deletions(-)
 
-diff --git a/tools/lib/lockdep/lockdep.c b/tools/lib/lockdep/lockdep.c
-index a0a2e3a266af..513140ea8a58 100644
 --- a/tools/lib/lockdep/lockdep.c
 +++ b/tools/lib/lockdep/lockdep.c
-@@ -5,4 +5,14 @@
- #define hlist_add_head_rcu		hlist_add_head
- #define hlist_del_rcu			hlist_del
+@@ -12,4 +12,14 @@ u32 prandom_u32(void)
+ 	abort();
+ }
  
 +static struct new_utsname *init_utsname(void)
 +{
@@ -35,8 +33,6 @@ index a0a2e3a266af..513140ea8a58 100644
 +}
 +
  #include "../../../kernel/locking/lockdep.c"
-diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/lib/lockdep/uinclude/linux/lockdep.h
-index d1079034a14d..c157242e0417 100644
 --- a/tools/lib/lockdep/uinclude/linux/lockdep.h
 +++ b/tools/lib/lockdep/uinclude/linux/lockdep.h
 @@ -44,16 +44,6 @@ static inline int debug_locks_off(void)

debian/patches/bugfix/all/liblockdep-fix-undefined-symbol-prandom_u32.patch

@@ -14,26 +14,21 @@ Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
  tools/lib/lockdep/common.c | 6 ++++++
  1 file changed, 6 insertions(+)
 
-diff --git a/tools/lib/lockdep/common.c b/tools/lib/lockdep/common.c
-index d1c89cc06f5f..405c17667c4d 100644
---- a/tools/lib/lockdep/common.c
-+++ b/tools/lib/lockdep/common.c
-@@ -1,5 +1,6 @@
- #include <stddef.h>
- #include <stdbool.h>
-+#include <stdlib.h>
- #include <linux/compiler.h>
+--- a/tools/lib/lockdep/lockdep.c
++++ b/tools/lib/lockdep/lockdep.c
+@@ -1,8 +1,15 @@
  #include <linux/lockdep.h>
- #include <unistd.h>
-@@ -10,6 +11,11 @@ static __thread struct task_struct current_obj;
- /* lockdep wants these */
- bool debug_locks = true;
- bool debug_locks_silent;
++#include <stdlib.h>
+ 
+ /* Trivial API wrappers, we don't (yet) have RCU in user-space: */
+ #define hlist_for_each_entry_rcu	hlist_for_each_entry
+ #define hlist_add_head_rcu		hlist_add_head
+ #define hlist_del_rcu			hlist_del
+ 
 +u32 prandom_u32(void)
 +{
 +	/* Used only by lock_pin_lock() which is dead code */
 +	abort();
 +}
- 
- __attribute__((destructor)) static void liblockdep_exit(void)
- {
++
+ #include "../../../kernel/locking/lockdep.c"