From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: [PATCH] kselftest: replace $(RM) with rm -f command Date: Mon, 28 Sep 2015 03:16:53 +0000 (UTC) Message-ID: <1201012824.5792.1443410213729.JavaMail.zimbra@efficios.com> References: <20150925154415.GC38748@vmdeb7> <1443406217-137773-1-git-send-email-long.wanglong@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1443406217-137773-1-git-send-email-long.wanglong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Wang Long Cc: shuahkh-JPH+aEBZ4P+UEJcrhfAQsw@public.gmane.org, dvhart-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org, Michael Ellerman , keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org, luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org, wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org, Andrew Morton , gorcunov-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org, cov-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, bobby prani , tyler baker , Tim Bird , josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org, Andrea Arcangeli , andrej skvortzov , sjayaram-JqFfY2XvxFXQT0dZR+AlfA@public.gmane.org, treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, Ingo Molnar , naresh kamboju , alexey kodanev , linux-api , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, wanglong-m92B/FuLcaEcWVvVuXF20w@public.gmane.org List-Id: linux-api@vger.kernel.org ----- On Sep 27, 2015, at 10:10 PM, Wang Long long.wanglong-hv44wF8Li93QT0dZR+AlfA@public.gmane.org wrote: > Some test's Makefile using "$(RM)" while the other's > using "rm -f". It is better to use one of them in all > tests. I agree that this disparity appears to be unwanted. We should settle on one or the other. > > "rm -f" is better, because it is less magic, and everyone > konws what is does. "$(RM)" is clearly defined as a Makefile implicit variable which defaults to "rm -f". Ref. https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html Leaving it as a variable is more flexible because then the default behavior can be overridden if need be, which is not the case of a hardcoded "rm -f". Following your line of argumentation, we should then invoke "gcc" directly in every Makefile because it is less magic than "$(CC)". This makes no sense. Thanks, Mathieu > > Signed-off-by: Wang Long > --- > tools/testing/selftests/capabilities/Makefile | 2 +- > tools/testing/selftests/kcmp/Makefile | 2 +- > tools/testing/selftests/membarrier/Makefile | 2 +- > tools/testing/selftests/memfd/Makefile | 2 +- > tools/testing/selftests/net/Makefile | 2 +- > tools/testing/selftests/seccomp/Makefile | 2 +- > tools/testing/selftests/size/Makefile | 2 +- > tools/testing/selftests/vm/Makefile | 2 +- > tools/testing/selftests/x86/Makefile | 2 +- > tools/testing/selftests/zram/Makefile | 2 +- > 10 files changed, 10 insertions(+), 10 deletions(-) > > diff --git a/tools/testing/selftests/capabilities/Makefile > b/tools/testing/selftests/capabilities/Makefile > index 8c8f0c1..dcc1972 100644 > --- a/tools/testing/selftests/capabilities/Makefile > +++ b/tools/testing/selftests/capabilities/Makefile > @@ -12,7 +12,7 @@ CFLAGS := -O2 -g -std=gnu99 -Wall -lcap-ng > all: $(TARGETS) > > clean: > - $(RM) $(TARGETS) > + rm -f $(TARGETS) > > $(TARGETS): %: %.c > $(CC) -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl > diff --git a/tools/testing/selftests/kcmp/Makefile > b/tools/testing/selftests/kcmp/Makefile > index 2ae7450..2deaee0 100644 > --- a/tools/testing/selftests/kcmp/Makefile > +++ b/tools/testing/selftests/kcmp/Makefile > @@ -7,4 +7,4 @@ TEST_PROGS := kcmp_test > include ../lib.mk > > clean: > - $(RM) kcmp_test kcmp-test-file > + rn -f kcmp_test kcmp-test-file > diff --git a/tools/testing/selftests/membarrier/Makefile > b/tools/testing/selftests/membarrier/Makefile > index a1a9708..f23fc58 100644 > --- a/tools/testing/selftests/membarrier/Makefile > +++ b/tools/testing/selftests/membarrier/Makefile > @@ -7,4 +7,4 @@ all: $(TEST_PROGS) > include ../lib.mk > > clean: > - $(RM) $(TEST_PROGS) > + rm -f $(TEST_PROGS) > diff --git a/tools/testing/selftests/memfd/Makefile > b/tools/testing/selftests/memfd/Makefile > index 3e7eb79..068fa93 100644 > --- a/tools/testing/selftests/memfd/Makefile > +++ b/tools/testing/selftests/memfd/Makefile > @@ -19,4 +19,4 @@ run_fuse: build_fuse > @./run_fuse_test.sh || echo "fuse_test: [FAIL]" > > clean: > - $(RM) memfd_test fuse_test > + rm -f memfd_test fuse_test > diff --git a/tools/testing/selftests/net/Makefile > b/tools/testing/selftests/net/Makefile > index fac4782..ec7eaa4 100644 > --- a/tools/testing/selftests/net/Makefile > +++ b/tools/testing/selftests/net/Makefile > @@ -16,4 +16,4 @@ TEST_FILES := $(NET_PROGS) > include ../lib.mk > > clean: > - $(RM) $(NET_PROGS) > + rm -f $(NET_PROGS) > diff --git a/tools/testing/selftests/seccomp/Makefile > b/tools/testing/selftests/seccomp/Makefile > index 8401e87..c16072a 100644 > --- a/tools/testing/selftests/seccomp/Makefile > +++ b/tools/testing/selftests/seccomp/Makefile > @@ -7,4 +7,4 @@ all: $(TEST_PROGS) > include ../lib.mk > > clean: > - $(RM) $(TEST_PROGS) > + rm -f $(TEST_PROGS) > diff --git a/tools/testing/selftests/size/Makefile > b/tools/testing/selftests/size/Makefile > index bbd0b53..cefe914 100644 > --- a/tools/testing/selftests/size/Makefile > +++ b/tools/testing/selftests/size/Makefile > @@ -8,4 +8,4 @@ TEST_PROGS := get_size > include ../lib.mk > > clean: > - $(RM) get_size > + rm -f get_size > diff --git a/tools/testing/selftests/vm/Makefile > b/tools/testing/selftests/vm/Makefile > index 3c53cac..26663c7 100644 > --- a/tools/testing/selftests/vm/Makefile > +++ b/tools/testing/selftests/vm/Makefile > @@ -24,4 +24,4 @@ TEST_FILES := $(BINARIES) > include ../lib.mk > > clean: > - $(RM) $(BINARIES) > + rm -f $(BINARIES) > diff --git a/tools/testing/selftests/x86/Makefile > b/tools/testing/selftests/x86/Makefile > index 29089b2..48b2406 100644 > --- a/tools/testing/selftests/x86/Makefile > +++ b/tools/testing/selftests/x86/Makefile > @@ -32,7 +32,7 @@ all_32: $(BINARIES_32) > all_64: $(BINARIES_64) > > clean: > - $(RM) $(BINARIES_32) $(BINARIES_64) > + rm -f $(BINARIES_32) $(BINARIES_64) > > $(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c > $(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl > diff --git a/tools/testing/selftests/zram/Makefile > b/tools/testing/selftests/zram/Makefile > index 29d8034..e1591c8 100644 > --- a/tools/testing/selftests/zram/Makefile > +++ b/tools/testing/selftests/zram/Makefile > @@ -6,4 +6,4 @@ TEST_FILES := zram01.sh zram02.sh zram_lib.sh > include ../lib.mk > > clean: > - $(RM) err.log > + rm -f err.log > -- > 1.8.3.4 -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com