linux-kernel - Re: [PATCH v6 4/6] selftests/resctrl: Make resctrl

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Date:   Fri, 18 Mar 2022 15:55:34 -0700
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     Shaopeng Tan <tan.shaopeng@...fujitsu.com>
Cc:     Reinette Chatre <reinette.chatre@...el.com>,
        Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v6 4/6] selftests/resctrl: Make resctrl_tests run using
 kselftest framework

On Fri, Mar 18, 2022 at 04:58:05PM +0900, Shaopeng Tan wrote:
> In kselftest framework, all tests can be build/run at a time,
					s/build/built/
> and a sub test also can be build/run individually. As follows:
			    s/build/built/
> $ make kselftest-all TARGETS=resctrl
> $ make -C tools/testing/selftests run_tests
> $ make -C tools/testing/selftests TARGETS=resctrl run_tests
> 
> However, resctrl_tests cannot be run using kselftest framework,
> users have to change directory to tools/testing/selftests/resctrl/,
> run "make" to build executable file "resctrl_tests",
> and run "sudo ./resctrl_tests" to execute the test.
> 
> To build/run resctrl_tests using kselftest framework.
> Modify tools/testing/selftests/Makefile
> and tools/testing/selftests/resctrl/Makefile.
> 
> Even after this change, users can still build/run resctrl_tests
> without using framework as before.
> 
> Signed-off-by: Shaopeng Tan <tan.shaopeng@...fujitsu.com>
> ---
>  tools/testing/selftests/Makefile         |  1 +
>  tools/testing/selftests/resctrl/Makefile | 17 ++++-------------
>  2 files changed, 5 insertions(+), 13 deletions(-)
> 
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index d08fe4cfe811..6138354b3760 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -52,6 +52,7 @@ TARGETS += proc
>  TARGETS += pstore
>  TARGETS += ptrace
>  TARGETS += openat2
> +TARGETS += resctrl
>  TARGETS += rlimits
>  TARGETS += rseq
>  TARGETS += rtc
> diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile
> index 6bcee2ec91a9..bee5fa8f1ac9 100644
> --- a/tools/testing/selftests/resctrl/Makefile
> +++ b/tools/testing/selftests/resctrl/Makefile
> @@ -1,17 +1,8 @@
> -CC = $(CROSS_COMPILE)gcc
>  CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2
> -SRCS=$(wildcard *.c)
> -OBJS=$(SRCS:.c=.o)
> +CFLAGS += $(KHDR_INCLUDES)
>  
> -all: resctrl_tests
> +TEST_GEN_PROGS := resctrl_tests
>  
> -$(OBJS): $(SRCS)
> -	$(CC) $(CFLAGS) -c $(SRCS)
> +include ../lib.mk
>  
> -resctrl_tests: $(OBJS)
> -	$(CC) $(CFLAGS) -o $@ $^
> -
> -.PHONY: clean
> -
> -clean:
> -	$(RM) $(OBJS) resctrl_tests
> +$(OUTPUT)/resctrl_tests: $(wildcard *.c)
> -- 
> 2.27.0
> 

Reviewed-by: Fenghua Yu <fenghua.yu@...el.com>

Thanks.

-Fenghua