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

[tip-bot for Ben Hutchings]

Commit-ID:  db8f7796c491a7b0a220a89a4abd9134f3906f43
Gitweb:     http://git.kernel.org/tip/db8f7796c491a7b0a220a89a4abd9134f3906f43
Author:     Ben Hutchings <ben@xxxxxxxxxxxxxxx>
AuthorDate: Thu, 25 May 2017 12:58:36 +0000
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: a.p.zijlstra@xxxxxxxxx
Link: http://lkml.kernel.org/r/20170525130005.5947-5-alexander.levin@xxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 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)