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Date: Mon, 28 Sep 2015 05:11:26 -0000 From: Cam Hutchison <camh@...a.net> To: linux-kernel@...r.kernel.org Subject: Re: [PATCH] kselftest: replace $(RM) with rm -f command Mathieu Desnoyers <mathieu.desnoyers@...icios.com> writes: >----- On Sep 27, 2015, at 10:10 PM, Wang Long long.wanglong@...wei.com wrote: >> Some test's Makefile using "$(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. >"$(RM)" is clearly defined as a Makefile implicit variable >which defaults to "rm -f". >Ref. https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html >Leaving it as a variable is more flexible because then the >default behavior can be overridden if need be, which is >not the case of a hardcoded "rm -f". And you're also possibly less likely to get errors like below... >Following your line of argumentation, we should then >invoke "gcc" directly in every Makefile because it is >less magic than "$(CC)". This makes no sense. >Thanks, >Mathieu >> >> Signed-off-by: Wang Long <long.wanglong@...wei.com> >> --- >> 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 s/rn/rm/ >> 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 >-- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@...r.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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