[PATCH 3/3] selftests: ignore output files and clean them in Makefile

[Li Zhijian <lizhijian@xxxxxxxxxxx>]

After `make run_tests`, the git status complains:
Untracked files:
    (use "git add <file>..." to include in what will be committed)
        cpufreq/cpufreq_selftest.dmesg_cpufreq.txt
        cpufreq/cpufreq_selftest.dmesg_full.txt
        cpufreq/cpufreq_selftest.txt
        zram/err.log

Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx>
---
 tools/testing/selftests/cpufreq/.gitignore | 1 +
 tools/testing/selftests/cpufreq/Makefile   | 1 +
 tools/testing/selftests/zram/.gitignore    | 1 +
 3 files changed, 3 insertions(+)
 create mode 100644 tools/testing/selftests/cpufreq/.gitignore
 create mode 100644 tools/testing/selftests/zram/.gitignore

diff --git a/tools/testing/selftests/cpufreq/.gitignore b/tools/testing/selftests/cpufreq/.gitignore
new file mode 100644
index 000000000000..f684d27f5d91
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/.gitignore
@@ -0,0 +1 @@
+cpufreq_selftest.*
diff --git a/tools/testing/selftests/cpufreq/Makefile b/tools/testing/selftests/cpufreq/Makefile
index c86ca8342222..9b2ccb10b0cf 100644
--- a/tools/testing/selftests/cpufreq/Makefile
+++ b/tools/testing/selftests/cpufreq/Makefile
@@ -3,6 +3,7 @@ all:
 
 TEST_PROGS := main.sh
 TEST_FILES := cpu.sh cpufreq.sh governor.sh module.sh special-tests.sh
+EXTRA_CLEAN := cpufreq_selftest.dmesg_cpufreq.txt cpufreq_selftest.dmesg_full.txt cpufreq_selftest.txt
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/zram/.gitignore b/tools/testing/selftests/zram/.gitignore
new file mode 100644
index 000000000000..b4a2cb6fafa6
--- /dev/null
+++ b/tools/testing/selftests/zram/.gitignore
@@ -0,0 +1 @@
+err.log
-- 
2.44.0