kbuild: re-implement Makefile.headersinst without recursion

Since commit fcc8487d477a ("uapi: export all headers under uapi
directories"), the headers in uapi directories are all exported by
default although exceptional cases are still allowed by the syntax
'no-export-headers'.

The traditional directory descending has been kept (in a somewhat
hacky way), but it is actually unneeded.

Get rid of it to simplify the code.

Also, handle files one by one instead of the previous per-directory
processing. This will emit much more log, but I like it.

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

1 files changed, 4 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 11445a7dd820..507ce2c92065 100644
--- a/Makefile
+++ b/Makefile
@@ -1194,13 +1194,13 @@ PHONY += headers
 headers: $(version_h) scripts_unifdef uapi-asm-generic archheaders archscripts
         $(if $(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/Kbuild),, \
           $(error Headers not exportable for the $(SRCARCH) architecture))
-        $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include
-        $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi dst=include
+        $(Q)$(MAKE) $(hdr-inst)=include/uapi
+        $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi
 
 PHONY += headers_check
 headers_check: headers
-        $(Q)$(MAKE) $(hdr-inst)=include/uapi dst=include HDRCHECK=1
-        $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi dst=include HDRCHECK=1
+        $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
+        $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARCH)/include/uapi HDRCHECK=1
 
 ifdef CONFIG_HEADERS_INSTALL
 prepare: headers