crypto: vmx - various build fixes

First up, clean up the generated .S files properly on a 'make clean'.
Secondly, force re-generation of these files when building for different
endian-ness than what was built previously. Finally, generate the new
files in the build tree, rather than the source tree.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
index de6e241b086668291e88c75d9ab7ef391648a895..55f7c392582f648cff1b7466350d4b5554efe00c 100644 (file)
--- a/drivers/crypto/vmx/Makefile
+++ b/drivers/crypto/vmx/Makefile
@@ -10,10 +10,12 @@ endif
 quiet_cmd_perl = PERL $@
       cmd_perl = $(PERL) $(<) $(TARGET) > $(@)
 
-$(src)/aesp8-ppc.S: $(src)/aesp8-ppc.pl
-       $(call cmd,perl)
+targets += aesp8-ppc.S ghashp8-ppc.S
+
+$(obj)/aesp8-ppc.S: $(src)/aesp8-ppc.pl FORCE
+       $(call if_changed,perl)
   
-$(src)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl
-       $(call cmd,perl)
+$(obj)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl FORCE
+       $(call if_changed,perl)
 
-.PRECIOUS: $(obj)/aesp8-ppc.S $(obj)/ghashp8-ppc.S
+clean-files := aesp8-ppc.S ghashp8-ppc.S