Re: [PATCH 04/10] certs: refactor file cleaning

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On Mon, Dec 13, 2021 at 04:29:35AM +0900, Masahiro Yamada wrote:
> 'make clean' removes files listed in 'targets'. It is redundant to
> specify both 'targets' and 'clean-files'.
> 
> Move 'targets' assignments out of the ifeq-conditionals so
> scripts/Makefile.clean can see them.
> 
> One effective change is that certs/certs/signing_key.x509 is now
> deleted by 'make clean' instead of 'make mrproper. This certificate
> is embedded in the kernel. It is not used in any way by external
> module builds.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> ---

Reviewed-by: Nicolas Schier <n.schier@xxxxxx>
> 
>  Makefile       | 2 +-
>  certs/Makefile | 9 +++++----
>  2 files changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 0a6ecc8bb2d2..4e8ac0730f51 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1503,7 +1503,7 @@ MRPROPER_FILES += include/config include/generated          \
>  		  debian snap tar-install \
>  		  .config .config.old .version \
>  		  Module.symvers \
> -		  certs/signing_key.pem certs/signing_key.x509 \
> +		  certs/signing_key.pem \
>  		  certs/x509.genkey \
>  		  vmlinux-gdb.py \
>  		  *.spec
> diff --git a/certs/Makefile b/certs/Makefile
> index e7d6ee183496..0dc523e8ca7c 100644
> --- a/certs/Makefile
> +++ b/certs/Makefile
> @@ -22,12 +22,11 @@ $(eval $(call config_filename,SYSTEM_TRUSTED_KEYS))
>  # GCC doesn't include .incbin files in -MD generated dependencies (PR#66871)
>  $(obj)/system_certificates.o: $(obj)/x509_certificate_list
>  
> -targets += x509_certificate_list
>  $(obj)/x509_certificate_list: scripts/extract-cert $(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(SYSTEM_TRUSTED_KEYS_FILENAME) FORCE
>  	$(call if_changed,extract_certs,$(SYSTEM_TRUSTED_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_TRUSTED_KEYS))
>  endif # CONFIG_SYSTEM_TRUSTED_KEYRING
>  
> -clean-files := x509_certificate_list .x509.list x509_revocation_list
> +targets += x509_certificate_list
>  
>  ifeq ($(CONFIG_MODULE_SIG),y)
>  	SIGN_KEY = y
> @@ -84,18 +83,20 @@ endif
>  # GCC PR#66871 again.
>  $(obj)/system_certificates.o: $(obj)/signing_key.x509
>  
> -targets += signing_key.x509
>  $(obj)/signing_key.x509: scripts/extract-cert $(X509_DEP) FORCE
>  	$(call if_changed,extract_certs,$(MODULE_SIG_KEY_SRCPREFIX)$(CONFIG_MODULE_SIG_KEY))
>  endif # CONFIG_MODULE_SIG
>  
> +targets += signing_key.x509
> +
>  ifeq ($(CONFIG_SYSTEM_REVOCATION_LIST),y)
>  
>  $(eval $(call config_filename,SYSTEM_REVOCATION_KEYS))
>  
>  $(obj)/revocation_certificates.o: $(obj)/x509_revocation_list
>  
> -targets += x509_revocation_list
>  $(obj)/x509_revocation_list: scripts/extract-cert $(SYSTEM_REVOCATION_KEYS_SRCPREFIX)$(SYSTEM_REVOCATION_KEYS_FILENAME) FORCE
>  	$(call if_changed,extract_certs,$(SYSTEM_REVOCATION_KEYS_SRCPREFIX)$(CONFIG_SYSTEM_REVOCATION_KEYS))
>  endif
> +
> +targets += x509_revocation_list
> -- 
> 2.32.0
> 



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