um: include/asm/arch link creation change

Hi,

current um code does not create a proper include/asm/arch link. when I bisected it I can see this was introduced by following patch:

commit fcbaa088fc8625381bd1096bc2eedc4f58a1572c

Author: Jeff Dike <[email protected]>
Date:   Wed Nov 14 16:58:42 2007 -0800

uml: fix symlink loops

symlinks to directories in the non-O= case were lacking -n, which meant that, when the link already existed, a new link pointing at itself was created in the target directory.

index 768a5d1..31999bc 100644
@@ -168,7 +168,7 @@ ifneq ($(KBUILD_SRC),)
        $(Q)mkdir -p $(objtree)/include/asm-um
        $(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
 else
-       $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(HEADER_ARCH) arch
+       $(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(SUBARCH) arch
 endif
 

snip

it works for me to use the HEADER_ARCH instead of the SUBARCH

---
 arch/um/Makefile |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

index 31999bc..ba6813a 100644
@@ -168,7 +168,7 @@ ifneq ($(KBUILD_SRC),)
 	$(Q)mkdir -p $(objtree)/include/asm-um
 	$(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
 else
-	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(SUBARCH) arch
+	$(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(HEADER_ARCH) arch
 endif
 
 $(objtree)/$(ARCH_DIR)/include:

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Thanks - this is already in -mm, it just needs to get to mainline.

Jeff

Work email - jdike at linux dot intel dot com

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