[tip:perf/core] perf tools: Remove unneccessary feature-dwarf warning

From: tip-bot for David Carrillo-Cisneros
Date: Wed Jan 18 2017 - 04:51:22 EST


Commit-ID: 2484c4c58fd1bc0d7711d294c530a1518da6a172
Gitweb: http://git.kernel.org/tip/2484c4c58fd1bc0d7711d294c530a1518da6a172
Author: David Carrillo-Cisneros <davidcc@xxxxxxxxxx>
AuthorDate: Thu, 12 Jan 2017 13:01:59 -0800
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 16 Jan 2017 14:59:15 -0300

perf tools: Remove unneccessary feature-dwarf warning

Don't warn for feature-dwarf==0 if user explicitily disabled DWARF by
using NO_DWARF=1.

Signed-off-by: David Carrillo-Cisneros <davidcc@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170112210159.76143-1-davidcc@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/Makefile.config | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 76c84f0..03cf947 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -291,8 +291,10 @@ else
endif
endif
ifneq ($(feature-dwarf), 1)
- msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
- NO_DWARF := 1
+ ifndef NO_DWARF
+ msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
+ NO_DWARF := 1
+ endif
else
ifneq ($(feature-dwarf_getlocations), 1)
msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);