linux-kernel - [tip:locking/core] tools/lib/lockdep: Fix 'defined but not used' warning for init

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Date:   Mon, 5 Jun 2017 02:04:38 -0700
From:   tip-bot for Ben Hutchings <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, hpa@...or.com, ben@...adent.org.uk,
        peterz@...radead.org, linux-kernel@...r.kernel.org,
        mingo@...nel.org, sasha.levin@...cle.com,
        torvalds@...ux-foundation.org
Subject: [tip:locking/core] tools/lib/lockdep: Fix 'defined but not used'
 warning for init_utsname()

Commit-ID:  1baa75406ecc2d77c9e6ecf45a707838a5bf7f29
Gitweb:     http://git.kernel.org/tip/1baa75406ecc2d77c9e6ecf45a707838a5bf7f29
Author:     Ben Hutchings <ben@...adent.org.uk>
AuthorDate: Thu, 25 May 2017 12:58:39 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 5 Jun 2017 09:28:06 +0200

tools/lib/lockdep: Fix 'defined but not used' warning for init_utsname()

We define init_utsname() as static but not inline, resulting
in a warning for every source file that includes lockdep.h but
doesn't call it.

Since it is only used by lockdep.c, define it in there.

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Sasha Levin <sasha.levin@...cle.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
Link: http://lkml.kernel.org/r/20170525130005.5947-8-alexander.levin@verizon.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/lib/lockdep/lockdep.c                | 10 ++++++++++
 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 443acb1..209f967 100644
--- a/tools/lib/lockdep/lockdep.c
+++ b/tools/lib/lockdep/lockdep.c
@@ -12,4 +12,14 @@ u32 prandom_u32(void)
 	abort();
 }
 
+static struct new_utsname *init_utsname(void)
+{
+	static struct new_utsname n = (struct new_utsname) {
+		.release = "liblockdep",
+		.version = LIBLOCKDEP_VERSION,
+	};
+
+	return &n;
+}
+
 #include "../../../kernel/locking/lockdep.c"
diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/lib/lockdep/uinclude/linux/lockdep.h
index d107903..c157242 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)
 #define atomic_t unsigned long
 #define atomic_inc(x) ((*(x))++)
 
-static struct new_utsname *init_utsname(void)
-{
-	static struct new_utsname n = (struct new_utsname) {
-		.release = "liblockdep",
-		.version = LIBLOCKDEP_VERSION,
-	};
-
-	return &n;
-}
-
 #define print_tainted() ""
 #define static_obj(x) 1