linux-kernel - [PATCH 03/27] kbuild: pass dst= to Makefile.headersinst from top Makefile

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Message-Id: <1497238041-7011-4-git-send-email-yamada.masahiro@socionext.com>
Date:   Mon, 12 Jun 2017 12:26:57 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-kbuild@...r.kernel.org,
        linux-arch <linux-arch@...r.kernel.org>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <mmarek@...e.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 03/27] kbuild: pass dst= to Makefile.headersinst from top Makefile

We can always pass dst= from the top Makefile.  This will simplify
the logic in Makefile.headersinst.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 Makefile                     | 4 ++--
 scripts/Makefile.headersinst | 7 ++-----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index 298a096863a9..1bb8c07db134 100644
--- a/Makefile
+++ b/Makefile
@@ -1162,7 +1162,7 @@ PHONY += headers_install
 headers_install: __headers
 	$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
 	  $(error Headers not exportable for the $(SRCARCH) architecture))
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst)
 
 PHONY += headers_check_all
@@ -1171,7 +1171,7 @@ headers_check_all: headers_install_all
 
 PHONY += headers_check
 headers_check: headers_install
-	$(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+	$(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
 	$(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi $(hdr-dst) HDRCHECK=1
 
 # ---------------------------------------------------------------------------
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index c801bc129635..b3135b76fac2 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -15,15 +15,13 @@ include scripts/Kbuild.include
 
 srcdir        := $(srctree)/$(obj)
 subdirs       := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
-# caller may set destination dir (when installing to asm/)
-_dst          := $(if $(dst),$(dst),$(obj))
 
 # Recursion
 __headers: $(subdirs)
 
 .PHONY: $(subdirs)
 $(subdirs):
-	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
+	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@
 
 # Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
 # We have only sub-directories there.
@@ -40,8 +38,7 @@ ifneq ($(wildcard $(old-kbuild-file)),)
 include $(old-kbuild-file)
 endif
 
-installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
-
+installdir    := $(INSTALL_HDR_PATH)/$(dst)
 gendir        := $(objtree)/$(subst include/,include/generated/,$(obj))
 header-files  := $(notdir $(wildcard $(srcdir)/*.h))
 header-files  += $(notdir $(wildcard $(srcdir)/*.agh))
-- 
2.7.4