diff -Naur linux-5.9.orig/Makefile linux-5.9/Makefile
--- linux-5.9.orig/Makefile	2020-10-17 11:53:33.379114870 +0300
+++ linux-5.9/Makefile	2020-10-17 11:53:34.941114897 +0300
@@ -1178,8 +1178,7 @@
 # Carefully list dependencies so we do not try to build scripts twice
 # in parallel
 PHONY += scripts
-scripts: scripts_basic scripts_dtc
-	$(Q)$(MAKE) $(build)=$(@)
+scripts:
 
 # Things we need to do before we recursively start building the kernel
 # or the modules are listed in "prepare".
@@ -1198,7 +1197,7 @@
 	$(Q)$(MAKE) $(build)=.
 
 # All the preparing..
-prepare: prepare0 prepare-objtool prepare-resolve_btfids
+prepare:
 
 # Support for using generic headers in asm-generic
 asm-generic := -f $(srctree)/scripts/Makefile.asm-generic obj
@@ -1462,15 +1461,8 @@
 	       modules.builtin modules.builtin.modinfo modules.nsdeps
 
 # Directories & files removed with 'make mrproper'
-MRPROPER_FILES += include/config include/generated          \
-		  arch/$(SRCARCH)/include/generated .tmp_objdiff \
-		  debian snap tar-install \
-		  .config .config.old .version \
-		  Module.symvers \
-		  signing_key.pem signing_key.priv signing_key.x509	\
-		  x509.genkey extra_certificates signing_key.x509.keyid	\
-		  signing_key.x509.signer vmlinux-gdb.py \
-		  *.spec
+MRPROPER_DIRS  += ""
+MRPROPER_FILES += ""
 
 # Directories & files removed with 'make distclean'
 DISTCLEAN_FILES += tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
@@ -1490,13 +1482,10 @@
 # mrproper - Delete all generated files, including .config
 #
 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
-mrproper-dirs      := $(addprefix _mrproper_,scripts)
 
-PHONY += $(mrproper-dirs) mrproper
-$(mrproper-dirs):
-	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
+PHONY += mrproper
 
-mrproper: clean $(mrproper-dirs)
+mrproper: clean
 	$(call cmd,rmfiles)
 
 # distclean
diff -Naur linux-5.9.orig/scripts/kconfig/Makefile linux-5.9/scripts/kconfig/Makefile
--- linux-5.9.orig/scripts/kconfig/Makefile	2020-10-17 11:53:33.021114863 +0300
+++ linux-5.9/scripts/kconfig/Makefile	2020-10-17 11:53:34.941114897 +0300
@@ -20,19 +20,14 @@
 unexport CONFIG_
 
 xconfig: $(obj)/qconf
-	$< $(silent) $(Kconfig)
 
 gconfig: $(obj)/gconf
-	$< $(silent) $(Kconfig)
 
 menuconfig: $(obj)/mconf
-	$< $(silent) $(Kconfig)
 
 config: $(obj)/conf
-	$< $(silent) --oldaskconfig $(Kconfig)
 
 nconfig: $(obj)/nconf
-	$< $(silent) $(Kconfig)
 
 build_menuconfig: $(obj)/mconf
 
@@ -48,11 +43,9 @@
 		cmp -s .tmp.config .config ||			\
 		(mv -f .config .config.old.1;			\
 		 mv -f .tmp.config .config;			\
-		 $< $(silent) --oldconfig $(Kconfig);		\
 		 mv -f .config.old.1 .config.old)		\
 	else							\
 		mv -f .tmp.config .config;			\
-		$< $(silent) --oldconfig $(Kconfig);		\
 	fi
 	$(Q)rm -f .tmp.config
 
@@ -68,24 +61,14 @@
 PHONY += $(simple-targets)
 
 $(simple-targets): $(obj)/conf
-	$< $(silent) --$@ $(Kconfig)
 
 PHONY += savedefconfig defconfig
 
 savedefconfig: $(obj)/conf
-	$< $(silent) --$@=defconfig $(Kconfig)
 
 defconfig: $(obj)/conf
-ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
-	@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
-	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
-else
-	@$(kecho) "*** Default configuration is based on target '$(KBUILD_DEFCONFIG)'"
-	$(Q)$(MAKE) -f $(srctree)/Makefile $(KBUILD_DEFCONFIG)
-endif
 
 %_defconfig: $(obj)/conf
-	$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
 
 configfiles=$(wildcard $(srctree)/kernel/configs/$@ $(srctree)/arch/$(SRCARCH)/configs/$@)