linux-kernel - [tip:locking/core] tools/lib/lockdep: Fix compilation for 4.11

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Date:   Mon, 5 Jun 2017 02:07:25 -0700
From:   "tip-bot for Levin, Alexander (Sasha Levin)" <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     torvalds@...ux-foundation.org, peterz@...radead.org,
        alexander.levin@...izon.com, hpa@...or.com, tglx@...utronix.de,
        mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip:locking/core] tools/lib/lockdep: Fix compilation for 4.11

Commit-ID:  6c8e6483850e7a7e44fd584790969c308887c468
Gitweb:     http://git.kernel.org/tip/6c8e6483850e7a7e44fd584790969c308887c468
Author:     Levin, Alexander (Sasha Levin) <alexander.levin@...izon.com>
AuthorDate: Thu, 25 May 2017 12:58:47 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 5 Jun 2017 09:28:09 +0200

tools/lib/lockdep: Fix compilation for 4.11

 - More rcu stubs
 - New dummy headers due to sched header split
 - jhash2 included in due to kernel lockdep inclusion and usage

Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: a.p.zijlstra@...llo.nl
Cc: ben@...adent.org.uk
Link: http://lkml.kernel.org/r/20170525130005.5947-13-alexander.levin@verizon.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/include/linux/bitops.h                               | 10 ++++++++++
 {include => tools/include}/linux/jhash.h                   |  0
 {include => tools/include}/linux/unaligned/packed_struct.h |  0
 tools/lib/lockdep/uinclude/linux/bitops.h                  |  3 ---
 tools/lib/lockdep/uinclude/linux/compiler.h                |  2 ++
 tools/lib/lockdep/uinclude/linux/kernel.h                  |  2 ++
 tools/lib/lockdep/uinclude/linux/rcu.h                     |  2 ++
 7 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
index 1aecad3..969db19 100644
--- a/tools/include/linux/bitops.h
+++ b/tools/include/linux/bitops.h
@@ -61,4 +61,14 @@ static inline unsigned fls_long(unsigned long l)
 	return fls64(l);
 }
 
+/**
+ * rol32 - rotate a 32-bit value left
+ * @word: value to rotate
+ * @shift: bits to roll
+ */
+static inline __u32 rol32(__u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
 #endif
diff --git a/include/linux/jhash.h b/tools/include/linux/jhash.h
similarity index 100%
copy from include/linux/jhash.h
copy to tools/include/linux/jhash.h
diff --git a/include/linux/unaligned/packed_struct.h b/tools/include/linux/unaligned/packed_struct.h
similarity index 100%
copy from include/linux/unaligned/packed_struct.h
copy to tools/include/linux/unaligned/packed_struct.h
diff --git a/tools/lib/lockdep/uinclude/linux/bitops.h b/tools/lib/lockdep/uinclude/linux/bitops.h
deleted file mode 100644
index fab00ff..0000000
--- a/tools/lib/lockdep/uinclude/linux/bitops.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-/* empty file */
-
diff --git a/tools/lib/lockdep/uinclude/linux/compiler.h b/tools/lib/lockdep/uinclude/linux/compiler.h
index fd3e56a..fba5e02 100644
--- a/tools/lib/lockdep/uinclude/linux/compiler.h
+++ b/tools/lib/lockdep/uinclude/linux/compiler.h
@@ -7,4 +7,6 @@
 #define WRITE_ONCE(x, val) x=(val)
 #define RCU_INIT_POINTER(p, v) p=(v)
 
+#define __packed	__attribute__((packed))
+
 #endif
diff --git a/tools/lib/lockdep/uinclude/linux/kernel.h b/tools/lib/lockdep/uinclude/linux/kernel.h
index 021cff4..faa98cc 100644
--- a/tools/lib/lockdep/uinclude/linux/kernel.h
+++ b/tools/lib/lockdep/uinclude/linux/kernel.h
@@ -52,4 +52,6 @@ static inline int lockdep_warn(int condition)
 #define _THIS_IP_ ({ __label__ __here; __here: (unsigned long)&&__here; })
 #endif
 
+#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
+
 #endif
diff --git a/tools/lib/lockdep/uinclude/linux/rcu.h b/tools/lib/lockdep/uinclude/linux/rcu.h
index 042ee8e..6f03323 100644
--- a/tools/lib/lockdep/uinclude/linux/rcu.h
+++ b/tools/lib/lockdep/uinclude/linux/rcu.h
@@ -18,4 +18,6 @@ static inline bool rcu_is_watching(void)
 	return false;
 }
 
+#define rcu_assign_pointer(p, v) ((p) = (v))
+
 #endif