[PATCH 3/8] crypto: simplify $(srctree)/ handling and remove config_filename macro

[Sascha Hauer <s.hauer@pengutronix.de>]

The config_filename macro has been dropped from mainline in
b8c96a6b466c ("certs: simplify $(srctree)/ handling and remove
config_filename macro"). Adopt the mechanism it has been replaced with
for barebox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 crypto/Makefile        | 12 ++++++++---
 scripts/Kbuild.include | 49 ------------------------------------------
 2 files changed, 9 insertions(+), 52 deletions(-)

diff --git a/crypto/Makefile b/crypto/Makefile
index be0f79d4e3..7e67f58bc7 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -25,7 +25,13 @@ extra-$(CONFIG_CRYPTO_RSA_BUILTIN_KEYS) += rsa-keys.h
 ifdef CONFIG_CRYPTO_RSA_BUILTIN_KEYS
 
 $(obj)/rsa.o: $(obj)/rsa-keys.h
-$(eval $(call config_filename,CRYPTO_RSA_KEY))
-$(obj)/rsa-keys.h: FORCE
-	$(call cmd,rsa_keys,$(CONFIG_CRYPTO_RSA_KEY_NAME_HINT):$(CRYPTO_RSA_KEY_SRCPREFIX)$(CRYPTO_RSA_KEY_FILENAME))
+
+CONFIG_CRYPTO_RSA_KEY := $(CONFIG_CRYPTO_RSA_KEY:"%"=%)
+
+ifneq ($(filter-out pkcs11:%, $(CONFIG_CRYPTO_RSA_KEY)),)
+RSA_DEP := $(CONFIG_CRYPTO_RSA_KEY)
+endif
+
+$(obj)/rsa-keys.h: $(RSA_DEP) FORCE
+	$(call cmd,rsa_keys,$(CONFIG_CRYPTO_RSA_KEY_NAME_HINT):$(if $(RSA_DEP),$<,$(CONFIG_CRYPTO_RSA_KEY)))
 endif
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index ab092e455c..eeb459f8fa 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -262,55 +262,6 @@ why =                                                                        \
 echo-why = $(call escsq, $(strip $(why)))
 endif
 
-###############################################################################
-#
-# When a Kconfig string contains a filename, it is suitable for
-# passing to shell commands. It is surrounded by double-quotes, and
-# any double-quotes or backslashes within it are escaped by
-# backslashes.
-#
-# This is no use for dependencies or $(wildcard). We need to strip the
-# surrounding quotes and the escaping from quotes and backslashes, and
-# we *do* need to escape any spaces in the string. So, for example:
-#
-# Usage: $(eval $(call config_filename,FOO))
-#
-# Defines FOO_FILENAME based on the contents of the CONFIG_FOO option,
-# transformed as described above to be suitable for use within the
-# makefile.
-#
-# Also, if the filename is a relative filename and exists in the source
-# tree but not the build tree, define FOO_SRCPREFIX as $(srctree)/ to
-# be prefixed to *both* command invocation and dependencies.
-#
-# Note: We also print the filenames in the quiet_cmd_foo text, and
-# perhaps ought to have a version specially escaped for that purpose.
-# But it's only cosmetic, and $(patsubst "%",%,$(CONFIG_FOO)) is good
-# enough.  It'll strip the quotes in the common case where there's no
-# space and it's a simple filename, and it'll retain the quotes when
-# there's a space. There are some esoteric cases in which it'll print
-# the wrong thing, but we don't really care. The actual dependencies
-# and commands *do* get it right, with various combinations of single
-# and double quotes, backslashes and spaces in the filenames.
-#
-###############################################################################
-#
-define config_filename
-ifneq ($$(CONFIG_$(1)),"")
-$(1)_FILENAME := $$(subst \\,\,$$(subst \$$(quote),$$(quote),$$(subst $$(space_escape),\$$(space),$$(patsubst "%",%,$$(subst $$(space),$$(space_escape),$$(CONFIG_$(1)))))))
-ifneq ($$(patsubst /%,%,$$(firstword $$($(1)_FILENAME))),$$(firstword $$($(1)_FILENAME)))
-else
-ifeq ($$(wildcard $$($(1)_FILENAME)),)
-ifneq ($$(wildcard $$(srctree)/$$($(1)_FILENAME)),)
-$(1)_SRCPREFIX := $(srctree)/
-endif
-endif
-endif
-endif
-endef
-#
-###############################################################################
-
 # delete partially updated (i.e. corrupted) files on error
 .DELETE_ON_ERROR:
 
-- 
2.30.2


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