Merge tag 'linux-kselftest-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This update to Kselftest consists of fixes, cleanups, and SPDX license
  additions"

* tag 'linux-kselftest-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: vm: update .gitignore with missing generated file
  selftests/x86: Add <test_name>{,_32,_64} targets
  selftests: Fix loss of test output in run_kselftests.sh
  selftest: ftrace: Fix to add 256 kprobe events correctly
  selftest: ftrace: Fix to pick text symbols for kprobes
  selftests: media_tests: Add SPDX license identifier
  selftests: kselftest.h: Add SPDX license identifier
  selftests: kselftest_install.sh: Add SPDX license identifier
  selftests: gen_kselftest_tar.h: Add SPDX license identifier
  selftests: media_tests: Fix Makefile 'clean' target warning
  tools/testing: Fix trailing semicolon
  kselftest: fix OOM in memory compaction test
  selftests: seccomp: fix compile error seccomp_bpf

tools/testing/selftests/Makefile

@@ -116,8 +116,15 @@ ifdef INSTALL_PATH
 
 	@# Ask all targets to emit their test scripts
 	echo "#!/bin/sh" > $(ALL_SCRIPT)
-	echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
+	echo "BASE_DIR=\$$(realpath \$$(dirname \$$0))" >> $(ALL_SCRIPT)
+	echo "cd \$$BASE_DIR" >> $(ALL_SCRIPT)
 	echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
+	echo "if [ \"\$$1\" = \"--summary\" ]; then" >> $(ALL_SCRIPT)
+	echo "  OUTPUT=\$$BASE_DIR/output.log" >> $(ALL_SCRIPT)
+	echo "  cat /dev/null > \$$OUTPUT" >> $(ALL_SCRIPT)
+	echo "else" >> $(ALL_SCRIPT)
+	echo "  OUTPUT=/dev/stdout" >> $(ALL_SCRIPT)
+	echo "fi" >> $(ALL_SCRIPT)
 
 	for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\

tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc

@@ -12,9 +12,24 @@ case `uname -m` in
   *) OFFS=0;;
 esac
 
-echo "Setup up to 256 kprobes"
-grep t /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
-head -n 256 | while read i; do echo p ${i}+${OFFS} ; done > kprobe_events ||:
+if [ -d events/kprobes ]; then
+  echo 0 > events/kprobes/enable
+  echo > kprobe_events
+fi
+
+N=0
+echo "Setup up kprobes on first available 256 text symbols"
+grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
+while read i; do
+  echo p ${i}+${OFFS} >> kprobe_events && N=$((N+1)) ||:
+  test $N -eq 256 && break
+done
+
+L=`wc -l kprobe_events`
+if [ $L -ne $N ]; then
+  echo "The number of kprobes events ($L) is not $N"
+  exit_fail
+fi
 
 echo 1 > events/kprobes/enable
 echo 0 > events/kprobes/enable

tools/testing/selftests/gen_kselftest_tar.sh

@@ -1,13 +1,11 @@
 #!/bin/bash
 #
+# SPDX-License-Identifier: GPL-2.0
 # gen_kselftest_tar
 # Generate kselftest tarball
 # Author: Shuah Khan <shuahkh@osg.samsung.com>
 # Copyright (C) 2015 Samsung Electronics Co., Ltd.
 
-# This software may be freely redistributed under the terms of the GNU
-# General Public License (GPLv2).
-
 # main
 main()
 {

tools/testing/selftests/kselftest.h

@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kselftest.h:	kselftest framework return codes to include from
  *		selftests.
@@ -5,7 +6,6 @@
  * Copyright (c) 2014 Shuah Khan <shuahkh@osg.samsung.com>
  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
  *
- * This file is released under the GPLv2.
  */
 #ifndef __KSELFTEST_H
 #define __KSELFTEST_H

tools/testing/selftests/kselftest_install.sh

@@ -1,13 +1,11 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Kselftest Install
 # Install kselftest tests
 # Author: Shuah Khan <shuahkh@osg.samsung.com>
 # Copyright (C) 2015 Samsung Electronics Co., Ltd.
 
-# This software may be freely redistributed under the terms of the GNU
-# General Public License (GPLv2).
-
 install_loc=`pwd`
 
 main()

tools/testing/selftests/lib.mk

@@ -77,7 +77,7 @@ endif
 define EMIT_TESTS
 	@for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 		BASENAME_TEST=`basename $$TEST`;	\
-		echo "(./$$BASENAME_TEST > /tmp/$$BASENAME_TEST 2>&1 && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
+		echo "(./$$BASENAME_TEST >> \$$OUTPUT 2>&1 && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
 	done;
 endef
 

tools/testing/selftests/media_tests/Makefile

@@ -1,8 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-TEST_PROGS := media_device_test media_device_open video_device_test
-all: $(TEST_PROGS)
+TEST_GEN_PROGS := media_device_test media_device_open video_device_test
+all: $(TEST_GEN_PROGS)
 
 include ../lib.mk
-
-clean:
-	rm -fr media_device_test media_device_open video_device_test

tools/testing/selftests/media_tests/media_device_open.c

@@ -1,10 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+
 /*
  * media_device_open.c - Media Controller Device Open Test
  *
  * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
  *
- * This file is released under the GPLv2.
  */
 
 /*

tools/testing/selftests/media_tests/media_device_test.c

@@ -1,10 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+
 /*
  * media_device_test.c - Media Controller Device ioctl loop Test
  *
  * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
  *
- * This file is released under the GPLv2.
  */
 
 /*

tools/testing/selftests/media_tests/video_device_test.c

@@ -1,10 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+
 /*
  * video_device_test - Video Device Test
  *
  * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
  * Copyright (c) 2016 Samsung Electronics Co., Ltd.
  *
- * This file is released under the GPLv2.
  */
 
 /*

tools/testing/selftests/nsfs/pidns.c

@@ -70,7 +70,7 @@ int main(int argc, char *argv[])
 			return pr_err("NS_GET_PARENT returned a wrong namespace");
 
 		if (ioctl(pns, NS_GET_PARENT) >= 0 || errno != EPERM)
-			return pr_err("Don't get EPERM");;
+			return pr_err("Don't get EPERM");
 	}
 
 	kill(pid, SIGKILL);

tools/testing/selftests/seccomp/seccomp_bpf.c

@@ -1717,7 +1717,7 @@ void tracer_ptrace(struct __test_metadata *_metadata, pid_t tracee,
 
 	if (nr == __NR_getpid)
 		change_syscall(_metadata, tracee, __NR_getppid);
-	if (nr == __NR_open)
+	if (nr == __NR_openat)
 		change_syscall(_metadata, tracee, -1);
 }
 
@@ -1792,7 +1792,7 @@ TEST_F(TRACE_syscall, ptrace_syscall_dropped)
 					   true);
 
 	/* Tracer should skip the open syscall, resulting in EPERM. */
-	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_open));
+	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_openat));
 }
 
 TEST_F(TRACE_syscall, syscall_allowed)

tools/testing/selftests/vm/.gitignore

@@ -10,3 +10,4 @@ userfaultfd
 mlock-intersect-test
 mlock-random-test
 virtual_address_range
+gup_benchmark

tools/testing/selftests/vm/compaction_test.c

@@ -137,6 +137,8 @@ int check_compaction(unsigned long mem_free, unsigned int hugepage_size)
 	printf("No of huge pages allocated = %d\n",
 	       (atoi(nr_hugepages)));
 
+	lseek(fd, 0, SEEK_SET);
+
 	if (write(fd, initial_nr_hugepages, strlen(initial_nr_hugepages))
 	    != strlen(initial_nr_hugepages)) {
 		perror("Failed to write value to /proc/sys/vm/nr_hugepages\n");

tools/testing/selftests/x86/Makefile

@@ -27,14 +27,26 @@ UNAME_M := $(shell uname -m)
 CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
 CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c)
 
+define gen-target-rule-32
+$(1) $(1)_32: $(OUTPUT)/$(1)_32
+.PHONY: $(1) $(1)_32
+endef
+
+define gen-target-rule-64
+$(1) $(1)_64: $(OUTPUT)/$(1)_64
+.PHONY: $(1) $(1)_64
+endef
+
 ifeq ($(CAN_BUILD_I386),1)
 all: all_32
 TEST_PROGS += $(BINARIES_32)
+$(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t))))
 endif
 
 ifeq ($(CAN_BUILD_X86_64),1)
 all: all_64
 TEST_PROGS += $(BINARIES_64)
+$(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t))))
 endif
 
 all_32: $(BINARIES_32)