linux-kernel - [tip:locking/core] tools/lib/lockdep: Enable -Wall by default

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Date:   Mon, 5 Jun 2017 02:02:52 -0700
From:   tip-bot for Ben Hutchings <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, tglx@...utronix.de,
        peterz@...radead.org, mingo@...nel.org, hpa@...or.com,
        torvalds@...ux-foundation.org, sasha.levin@...cle.com,
        ben@...adent.org.uk
Subject: [tip:locking/core] tools/lib/lockdep: Enable -Wall by default

Commit-ID:  db8f7796c491a7b0a220a89a4abd9134f3906f43
Gitweb:     http://git.kernel.org/tip/db8f7796c491a7b0a220a89a4abd9134f3906f43
Author:     Ben Hutchings <ben@...adent.org.uk>
AuthorDate: Thu, 25 May 2017 12:58:36 +0000
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Mon, 5 Jun 2017 09:28:04 +0200

tools/lib/lockdep: Enable -Wall by default

Regressions in liblockdep may be missed because it doesn't enable
warnings.

Adding -Wall immediately introduces a lot of warnings, but those will
be fixed by the following commits.

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/20170525130005.5947-5-alexander.levin@verizon.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 tools/lib/lockdep/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 3bc0ef9..98d8a5ae 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -79,6 +79,7 @@ INCLUDES = -I. -I./uinclude -I./include -I../../include $(CONFIG_INCLUDES)
 # Set compile option CFLAGS if not set elsewhere
 CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
 CFLAGS += -fPIC
+CFLAGS += -Wall
 
 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)