[PATCH v2] perf tools: exclude the include/perf/ directory

[Donglin Peng]

Commit 3af1dfdd51e0 ("perf build: Move perf_dlfilters.h in the
source tree") moved perf_dlfilters.h to the include/perf/ directory
while include/perf is ignored because it has 'perf' in the name.
Newly created files in the include/perf/ directory will be ignored.

Can check:

Before:
$ touch tools/perf/include/perf/junk
$ git status | grep junk
$ git check-ignore -v tools/perf/include/perf/junk
tools/perf/.gitignore:6:perf    tools/perf/include/perf/junk

After:
$ git status | grep junk
tools/perf/include/perf/junk
$ git check-ignore -v tools/perf/include/perf/junk

Add !include/perf/ to perf's .gitignore file.

Fixes: 3af1dfdd51e0 ("perf build: Move perf_dlfilters.h in the source tree")
Signed-off-by: Donglin Peng <dolinux.peng@xxxxxxxxx>
Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
---
Changes in v2:
- add 'Fixes:' tag in commit message
- make commit message more clearer
---
 tools/perf/.gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index a653311d9693..fd7a6ff9e7aa 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -4,6 +4,7 @@ PERF-GUI-VARS
 PERF-VERSION-FILE
 FEATURE-DUMP
 perf
+!include/perf/
 perf-read-vdso32
 perf-read-vdsox32
 perf-help
-- 
2.25.1