selftests/gpio: Use TEST_GEN_PROGS_EXTENDED

[ Upstream commit ff2c395 ]

Use TEST_GEN_PROGS_EXTENDED rather than TEST_PROGS_EXTENDED.

That tells the lib.mk logic that the files it references are to be
generated by the Makefile.

Having done that we don't need to override the all rule.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

tools/testing/selftests/gpio/Makefile

@@ -11,22 +11,20 @@ LDLIBS += $(VAR_LDLIBS)
 
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh
-TEST_PROGS_EXTENDED := gpio-mockup-chardev
+TEST_GEN_PROGS_EXTENDED := gpio-mockup-chardev
 
 GPIODIR := $(realpath ../../../gpio)
 GPIOOBJ := gpio-utils.o
 
-all: $(TEST_PROGS_EXTENDED)
-
 override define CLEAN
-	$(RM) $(TEST_PROGS_EXTENDED)
+	$(RM) $(TEST_GEN_PROGS_EXTENDED)
 	$(MAKE) -C $(GPIODIR) OUTPUT=$(GPIODIR)/ clean
 endef
 
 KSFT_KHDR_INSTALL := 1
 include ../lib.mk
 
-$(TEST_PROGS_EXTENDED): $(GPIODIR)/$(GPIOOBJ)
+$(TEST_GEN_PROGS_EXTENDED): $(GPIODIR)/$(GPIOOBJ)
 
 $(GPIODIR)/$(GPIOOBJ):
 	$(MAKE) OUTPUT=$(GPIODIR)/ -C $(GPIODIR)