Merge tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Change V=1 option to print both short log and full command log

 - Allow V=1 and V=2 to be combined as V=12

 - Make W=1 detect wrong .gitignore files

 - Tree-wide cleanups for unused command line arguments passed to Clang

 - Stop using -Qunused-arguments with Clang

 - Make scripts/setlocalversion handle only correct release tags instead
   of any arbitrary annotated tag

 - Create Debian and RPM source packages without cleaning the source
   tree

 - Various cleanups for packaging

* tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (74 commits)
  kbuild: rpm-pkg: remove unneeded KERNELRELEASE from modules/headers_install
  docs: kbuild: remove description of KBUILD_LDS_MODULE
  .gitattributes: use 'dts' diff driver for *.dtso files
  kbuild: deb-pkg: improve the usability of source package
  kbuild: deb-pkg: fix binary-arch and clean in debian/rules
  kbuild: tar-pkg: use tar rules in scripts/Makefile.package
  kbuild: make perf-tar*-src-pkg work without relying on git
  kbuild: deb-pkg: switch over to source format 3.0 (quilt)
  kbuild: deb-pkg: make .orig tarball a hard link if possible
  kbuild: deb-pkg: hide KDEB_SOURCENAME from Makefile
  kbuild: srcrpm-pkg: create source package without cleaning
  kbuild: rpm-pkg: build binary packages from source rpm
  kbuild: deb-pkg: create source package without cleaning
  kbuild: add a tool to list files ignored by git
  Documentation/llvm: add Chimera Linux, Google and Meta datacenters
  setlocalversion: use only the correct release tag for git-describe
  setlocalversion: clean up the construction of version output
  .gitignore: ignore *.cover and *.mbx
  kbuild: remove --include-dir MAKEFLAG from top Makefile
  kbuild: fix trivial typo in comment
  ...

32 files changed, 84 insertions, 118 deletions

diff --git a/arch/arm/mach-s3c/Makefile b/arch/arm/mach-s3c/Makefile
index 988c49672715..713827bef831 100644
--- a/arch/arm/mach-s3c/Makefile
+++ b/arch/arm/mach-s3c/Makefile
@@ -2,7 +2,7 @@
 #
 # Copyright 2009 Simtec Electronics
 
-include $(src)/Makefile.s3c64xx
+include $(srctree)/$(src)/Makefile.s3c64xx
 
 # Objects we always build independent of SoC choice
 
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index ae9ff07de4ab..d7e1cabee2ec 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -43,4 +43,4 @@ obj-$(CONFIG_ELF_CORE)		+= elfcore.o
 CFLAGS_traps.o  += -mfixed-range=f2-f5,f16-f31
 
 # The gate DSO image is built using a special linker script.
-include $(src)/Makefile.gate
+include $(srctree)/$(src)/Makefile.gate
diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild
index 9e8071f0e58f..af2967bffb73 100644
--- a/arch/mips/Kbuild
+++ b/arch/mips/Kbuild
@@ -7,7 +7,7 @@ subdir-ccflags-y := -Werror
 endif
 
 # platform specific definitions
-include arch/mips/Kbuild.platforms
+include $(srctree)/arch/mips/Kbuild.platforms
 obj-y := $(platform-y)
 
 # make clean traverses $(obj-) without having included .config, so
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 490dea07d4e0..04e46ec24319 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -95,7 +95,7 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
 # crossformat linking we rely on the elf2ecoff tool for format conversion.
 #
 cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe
-cflags-y			+= -msoft-float
+cflags-y			+= -msoft-float -Wa,-msoft-float
 LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib
 KBUILD_AFLAGS_MODULE		+= -mlong-calls
 KBUILD_CFLAGS_MODULE		+= -mlong-calls
@@ -104,15 +104,6 @@ ifeq ($(CONFIG_RELOCATABLE),y)
 LDFLAGS_vmlinux			+= --emit-relocs
 endif
 
-#
-# pass -msoft-float to GAS if it supports it.  However on newer binutils
-# (specifically newer than 2.24.51.20140728) we then also need to explicitly
-# set ".set hardfloat" in all files which manipulate floating point registers.
-#
-ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
-	cflags-y		+= -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
-endif
-
 cflags-y += -ffreestanding
 
 cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= -EB
@@ -152,7 +143,7 @@ cflags-y += -fno-stack-check
 #
 # Avoid this by explicitly disabling that assembler behaviour.
 #
-cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
+cflags-y += $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 
 #
 # CPU-dependent compiler/assembler options for optimization.
diff --git a/arch/mips/Makefile.postlink b/arch/mips/Makefile.postlink
index 4b1d3ba3a8a2..34e3bd71f3b0 100644
--- a/arch/mips/Makefile.postlink
+++ b/arch/mips/Makefile.postlink
@@ -10,7 +10,7 @@ PHONY := __archpost
 __archpost:
 
 -include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 CMD_LS3_LLSC = arch/mips/tools/loongson3-llsc-check
 quiet_cmd_ls3_llsc = LLSCCHK $@
diff --git a/arch/mips/include/asm/asmmacro-32.h b/arch/mips/include/asm/asmmacro-32.h
index 1c08c1f7903c..83a4940b7c89 100644
--- a/arch/mips/include/asm/asmmacro-32.h
+++ b/arch/mips/include/asm/asmmacro-32.h
@@ -15,7 +15,7 @@
 
 	.macro	fpu_save_single thread tmp=t0
 	.set push
-	SET_HARDFLOAT
+	.set hardfloat
 	cfc1	\tmp,  fcr31
 	s.d	$f0,  THREAD_FPR0(\thread)
 	s.d	$f2,  THREAD_FPR2(\thread)
@@ -39,7 +39,7 @@
 
 	.macro	fpu_restore_single thread tmp=t0
 	.set push
-	SET_HARDFLOAT
+	.set hardfloat
 	lw	\tmp, THREAD_FCR31(\thread)
 	l.d	$f0,  THREAD_FPR0(\thread)
 	l.d	$f2,  THREAD_FPR2(\thread)
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index ca83ada7015f..1c4438f3f2ab 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -83,7 +83,7 @@
 
 	.macro	fpu_save_16even thread tmp=t0
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	cfc1	\tmp, fcr31
 	sdc1	$f0,  THREAD_FPR0(\thread)
 	sdc1	$f2,  THREAD_FPR2(\thread)
@@ -109,7 +109,7 @@
 	.set	push
 	.set	mips64r2
 	.set	fp=64
-	SET_HARDFLOAT
+	.set	hardfloat
 	sdc1	$f1,  THREAD_FPR1(\thread)
 	sdc1	$f3,  THREAD_FPR3(\thread)
 	sdc1	$f5,  THREAD_FPR5(\thread)
@@ -142,7 +142,7 @@
 
 	.macro	fpu_restore_16even thread tmp=t0
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	lw	\tmp, THREAD_FCR31(\thread)
 	ldc1	$f0,  THREAD_FPR0(\thread)
 	ldc1	$f2,  THREAD_FPR2(\thread)
@@ -168,7 +168,7 @@
 	.set	push
 	.set	mips64r2
 	.set	fp=64
-	SET_HARDFLOAT
+	.set	hardfloat
 	ldc1	$f1,  THREAD_FPR1(\thread)
 	ldc1	$f3,  THREAD_FPR3(\thread)
 	ldc1	$f5,  THREAD_FPR5(\thread)
@@ -373,7 +373,7 @@
 	.macro	_cfcmsa	rd, cs
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	insn_if_mips 0x787e0059 | (\cs << 11)
 	insn32_if_mm 0x587e0056 | (\cs << 11)
 	move	\rd, $1
@@ -383,7 +383,7 @@
 	.macro	_ctcmsa	cd, rs
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	move	$1, \rs
 	insn_if_mips 0x783e0819 | (\cd << 6)
 	insn32_if_mm 0x583e0816 | (\cd << 6)
@@ -393,7 +393,7 @@
 	.macro	ld_b	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000820 | (\wd << 6)
 	insn32_if_mm 0x58000807 | (\wd << 6)
@@ -403,7 +403,7 @@
 	.macro	ld_h	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000821 | (\wd << 6)
 	insn32_if_mm 0x58000817 | (\wd << 6)
@@ -413,7 +413,7 @@
 	.macro	ld_w	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000822 | (\wd << 6)
 	insn32_if_mm 0x58000827 | (\wd << 6)
@@ -423,7 +423,7 @@
 	.macro	ld_d	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000823 | (\wd << 6)
 	insn32_if_mm 0x58000837 | (\wd << 6)
@@ -433,7 +433,7 @@
 	.macro	st_b	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000824 | (\wd << 6)
 	insn32_if_mm 0x5800080f | (\wd << 6)
@@ -443,7 +443,7 @@
 	.macro	st_h	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000825 | (\wd << 6)
 	insn32_if_mm 0x5800081f | (\wd << 6)
@@ -453,7 +453,7 @@
 	.macro	st_w	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000826 | (\wd << 6)
 	insn32_if_mm 0x5800082f | (\wd << 6)
@@ -463,7 +463,7 @@
 	.macro	st_d	wd, off, base
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	PTR_ADDU $1, \base, \off
 	insn_if_mips 0x78000827 | (\wd << 6)
 	insn32_if_mm 0x5800083f | (\wd << 6)
@@ -473,7 +473,7 @@
 	.macro	copy_s_w	ws, n
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	insn_if_mips 0x78b00059 | (\n << 16) | (\ws << 11)
 	insn32_if_mm 0x58b00056 | (\n << 16) | (\ws << 11)
 	.set	pop
@@ -482,7 +482,7 @@
 	.macro	copy_s_d	ws, n
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	insn_if_mips 0x78b80059 | (\n << 16) | (\ws << 11)
 	insn32_if_mm 0x58b80056 | (\n << 16) | (\ws << 11)
 	.set	pop
@@ -491,7 +491,7 @@
 	.macro	insert_w	wd, n
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	insn_if_mips 0x79300819 | (\n << 16) | (\wd << 6)
 	insn32_if_mm 0x59300816 | (\n << 16) | (\wd << 6)
 	.set	pop
@@ -500,7 +500,7 @@
 	.macro	insert_d	wd, n
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	insn_if_mips 0x79380819 | (\n << 16) | (\wd << 6)
 	insn32_if_mm 0x59380816 | (\n << 16) | (\wd << 6)
 	.set	pop
@@ -553,7 +553,7 @@
 	st_d	29, THREAD_FPR29 - FPR_BASE_OFFS, FPR_BASE
 	st_d	30, THREAD_FPR30 - FPR_BASE_OFFS, FPR_BASE
 	st_d	31, THREAD_FPR31 - FPR_BASE_OFFS, FPR_BASE
-	SET_HARDFLOAT
+	.set	hardfloat
 	_cfcmsa	$1, MSA_CSR
 	sw	$1, THREAD_MSA_CSR(\thread)
 	.set	pop
@@ -562,7 +562,7 @@
 	.macro	msa_restore_all	thread
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	lw	$1, THREAD_MSA_CSR(\thread)
 	_ctcmsa	MSA_CSR, $1
 #ifdef TOOLCHAIN_SUPPORTS_MSA
@@ -618,7 +618,7 @@
 	.macro	msa_init_all_upper
 	.set	push
 	.set	noat
-	SET_HARDFLOAT
+	.set	hardfloat
 	not	$1, zero
 	msa_init_upper	0
 	msa_init_upper	1
diff --git a/arch/mips/include/asm/fpregdef.h b/arch/mips/include/asm/fpregdef.h
index f184ba088532..429481f9028d 100644
--- a/arch/mips/include/asm/fpregdef.h
+++ b/arch/mips/include/asm/fpregdef.h
@@ -14,20 +14,6 @@
 
 #include <asm/sgidefs.h>
 
-/*
- * starting with binutils 2.24.51.20140729, MIPS binutils warn about mixing
- * hardfloat and softfloat object files.  The kernel build uses soft-float by
- * default, so we also need to pass -msoft-float along to GAS if it supports it.
- * But this in turn causes assembler errors in files which access hardfloat
- * registers.  We detect if GAS supports "-msoft-float" in the Makefile and
- * explicitly put ".set hardfloat" where floating point registers are touched.
- */
-#ifdef GAS_HAS_SET_HARDFLOAT
-#define SET_HARDFLOAT .set hardfloat
-#else
-#define SET_HARDFLOAT
-#endif
-
 #if _MIPS_SIM == _MIPS_SIM_ABI32
 
 /*
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 99eeafe6dcab..2d53704d9f24 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -2367,7 +2367,7 @@ do {									\
 /*
  * Macros to access the floating point coprocessor control registers
  */
-#define _read_32bit_cp1_register(source, gas_hardfloat)			\
+#define read_32bit_cp1_register(source)					\
 ({									\
 	unsigned int __res;						\
 									\
@@ -2377,36 +2377,24 @@ do {									\
 	"	# gas fails to assemble cfc1 for some archs,	\n"	\
 	"	# like Octeon.					\n"	\
 	"	.set	mips1					\n"	\
-	"	"STR(gas_hardfloat)"				\n"	\
+	"	.set hardfloat					\n"	\
 	"	cfc1	%0,"STR(source)"			\n"	\
 	"	.set	pop					\n"	\
 	: "=r" (__res));						\
 	__res;								\
 })
 
-#define _write_32bit_cp1_register(dest, val, gas_hardfloat)		\
+#define write_32bit_cp1_register(dest, val)				\
 do {									\
 	__asm__ __volatile__(						\
 	"	.set	push					\n"	\
 	"	.set	reorder					\n"	\
-	"	"STR(gas_hardfloat)"				\n"	\
+	"	.set hardfloat					\n"	\
 	"	ctc1	%0,"STR(dest)"				\n"	\
 	"	.set	pop					\n"	\
 	: : "r" (val));							\
 } while (0)
 
-#ifdef GAS_HAS_SET_HARDFLOAT
-#define read_32bit_cp1_register(source)					\
-	_read_32bit_cp1_register(source, .set hardfloat)
-#define write_32bit_cp1_register(dest, val)				\
-	_write_32bit_cp1_register(dest, val, .set hardfloat)
-#else
-#define read_32bit_cp1_register(source)					\
-	_read_32bit_cp1_register(source, )
-#define write_32bit_cp1_register(dest, val)				\
-	_write_32bit_cp1_register(dest, val, )
-#endif
-
 #ifdef TOOLCHAIN_SUPPORTS_DSP
 #define rddsp(mask)							\
 ({									\
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 3425df6019c0..b6de8e88c1bd 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -480,7 +480,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.set	push
 	/* gas fails to assemble cfc1 for some archs (octeon).*/ \
 	.set	mips1
-	SET_HARDFLOAT
+	.set	hardfloat
 	cfc1	a1, fcr31
 	.set	pop
 	.endm
diff --git a/arch/mips/kernel/r2300_fpu.S b/arch/mips/kernel/r2300_fpu.S
index 2748c55820c2..6c745aa9e825 100644
--- a/arch/mips/kernel/r2300_fpu.S
+++ b/arch/mips/kernel/r2300_fpu.S
@@ -64,7 +64,7 @@ LEAF(_restore_fp)
  */
 LEAF(_save_fp_context)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	li	v0, 0					# assume success
 	cfc1	t1, fcr31
 	EX2(s.d $f0, 0(a0))
@@ -98,7 +98,7 @@ LEAF(_save_fp_context)
  */
 LEAF(_restore_fp_context)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	li	v0, 0					# assume success
 	EX(lw t0, (a1))
 	EX2(l.d $f0, 0(a0))
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 2e687c60bc4f..4e8c98517d9d 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -26,7 +26,7 @@
 
 	.macro	EX insn, reg, src
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	.set	nomacro
 .ex\@:	\insn	\reg, \src
 	.set	pop
@@ -98,14 +98,14 @@ LEAF(_init_msa_upper)
  */
 LEAF(_save_fp_context)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	cfc1	t1, fcr31
 	.set	pop
 
 #if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPSR2) || \
     defined(CONFIG_CPU_MIPSR5) || defined(CONFIG_CPU_MIPSR6)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR5)
 	.set	mips32r2
 	.set	fp=64
@@ -135,7 +135,7 @@ LEAF(_save_fp_context)
 #endif
 
 	.set push
-	SET_HARDFLOAT
+	.set	hardfloat
 	/* Store the 16 even double precision registers */
 	EX	sdc1 $f0, 0(a0)
 	EX	sdc1 $f2, 16(a0)
@@ -173,7 +173,7 @@ LEAF(_restore_fp_context)
 #if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPSR2) || \
     defined(CONFIG_CPU_MIPSR5) || defined(CONFIG_CPU_MIPSR6)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR5)
 	.set	mips32r2
 	.set	fp=64
@@ -201,7 +201,7 @@ LEAF(_restore_fp_context)
 1:	.set pop
 #endif
 	.set push
-	SET_HARDFLOAT
+	.set hardfloat
 	EX	ldc1 $f0, 0(a0)
 	EX	ldc1 $f2, 16(a0)
 	EX	ldc1 $f4, 32(a0)
diff --git a/arch/mips/kvm/fpu.S b/arch/mips/kvm/fpu.S
index 16f17c6390dd..eb2e8cc3532f 100644
--- a/arch/mips/kvm/fpu.S
+++ b/arch/mips/kvm/fpu.S
@@ -22,7 +22,7 @@
 
 LEAF(__kvm_save_fpu)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	.set	fp=64
 	mfc0	t0, CP0_STATUS
 	sll     t0, t0, 5			# is Status.FR set?
@@ -66,7 +66,7 @@ LEAF(__kvm_save_fpu)
 
 LEAF(__kvm_restore_fpu)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	.set	fp=64
 	mfc0	t0, CP0_STATUS
 	sll     t0, t0, 5			# is Status.FR set?
@@ -110,7 +110,7 @@ LEAF(__kvm_restore_fpu)
 
 LEAF(__kvm_restore_fcsr)
 	.set	push
-	SET_HARDFLOAT
+	.set	hardfloat
 	lw	t0, VCPU_FCR31(a0)
 	/*
 	 * The ctc1 must stay at this offset in __kvm_restore_fcsr.
diff --git a/arch/mips/loongson2ef/Platform b/arch/mips/loongson2ef/Platform
index eebabf9df6ac..c6f7a4b95997 100644
--- a/arch/mips/loongson2ef/Platform
+++ b/arch/mips/loongson2ef/Platform
@@ -25,7 +25,7 @@ cflags-$(CONFIG_CPU_LOONGSON2F) += -march=loongson2f
 # binutils does not merge support for the flag then we can revisit & remove
 # this later - for now it ensures vendor toolchains don't cause problems.
 #
-cflags-$(CONFIG_CPU_LOONGSON2EF)	+= $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
+cflags-$(CONFIG_CPU_LOONGSON2EF)	+= $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 
 # Enable the workarounds for Loongson2f
 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 87d6ac27eebd..e91d7e91347d 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -90,7 +90,7 @@ aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
 
 ifeq ($(HAS_BIARCH),y)
 KBUILD_CFLAGS	+= -m$(BITS)
-KBUILD_AFLAGS	+= -m$(BITS) -Wl,-a$(BITS)
+KBUILD_AFLAGS	+= -m$(BITS)
 KBUILD_LDFLAGS	+= -m elf$(BITS)$(LDEMULATION)
 endif
 
diff --git a/arch/powerpc/Makefile.postlink b/arch/powerpc/Makefile.postlink
index a6c77f4d32b2..1f860b3c9bec 100644
--- a/arch/powerpc/Makefile.postlink
+++ b/arch/powerpc/Makefile.postlink
@@ -9,7 +9,7 @@ PHONY := __archpost
 __archpost:
 
 -include include/config/auto.conf
-include scripts/Kbuild.include
+include $(srctree)/scripts/Kbuild.include
 
 quiet_cmd_head_check = CHKHEAD $@
       cmd_head_check = $(CONFIG_SHELL) $(srctree)/arch/powerpc/tools/head_check.sh "$(NM)" "$@"
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index 311890d71c4c..5a319863f289 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -51,11 +51,10 @@ do
 	# a leading . on the name, so strip it off here.
 	UNDEF="${UNDEF#.}"
 
-	if [ $KBUILD_VERBOSE ]; then
-		if [ $KBUILD_VERBOSE -ne 0 ]; then
-			echo "Checking prom_init.o symbol '$UNDEF'"
-		fi
-	fi
+	case "$KBUILD_VERBOSE" in
+	*1*)
+		echo "Checking prom_init.o symbol '$UNDEF'" ;;
+	esac
 
 	OK=0
 	for WHITE in $WHITELIST
diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile
index 3a2f32929fcf..66f723f53be2 100644
--- a/arch/powerpc/kernel/vdso/Makefile
+++ b/arch/powerpc/kernel/vdso/Makefile
@@ -16,6 +16,11 @@ ifneq ($(c-gettimeofday-y),)
   CFLAGS_vgettimeofday-32.o += -ffreestanding -fasynchronous-unwind-tables
   CFLAGS_REMOVE_vgettimeofday-32.o = $(CC_FLAGS_FTRACE)
   CFLAGS_REMOVE_vgettimeofday-32.o += -mcmodel=medium -mabi=elfv1 -mabi=elfv2 -mcall-aixdesc
+  # This flag is supported by clang for 64-bit but not 32-bit so it will cause
+  # an unused command line flag warning for this file.
+  ifdef CONFIG_CC_IS_CLANG
+  CFLAGS_REMOVE_vgettimeofday-32.o += -fno-stack-clash-protection
+  endif
   CFLAGS_vgettimeofday-64.o += -include $(c-gettimeofday-y)
   CFLAGS_vgettimeofday-64.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
   CFLAGS_vgettimeofday-64.o += $(call cc-option, -fno-stack-protector)
@@ -48,14 +53,18 @@ UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
 
-ccflags-y := -shared -fno-common -fno-builtin -nostdlib -Wl,--hash-style=both
-ccflags-$(CONFIG_LD_IS_LLD) += $(call cc-option,--ld-path=$(LD),-fuse-ld=lld)
+ccflags-y := -fno-common -fno-builtin
+ldflags-y := -Wl,--hash-style=both -nostdlib -shared -z noexecstack
+ldflags-$(CONFIG_LD_IS_LLD) += $(call cc-option,--ld-path=$(LD),-fuse-ld=lld)
+# Filter flags that clang will warn are unused for linking
+ldflags-y += $(filter-out $(CC_AUTO_VAR_INIT_ZERO_ENABLER) $(CC_FLAGS_FTRACE) -Wa$(comma)%, $(KBUILD_CFLAGS))
 
-CC32FLAGS := -Wl,-soname=linux-vdso32.so.1 -m32
-AS32FLAGS := -D__VDSO32__ -s
+CC32FLAGS := -m32
+LD32FLAGS := -Wl,-soname=linux-vdso32.so.1
+AS32FLAGS := -D__VDSO32__
 
-CC64FLAGS := -Wl,-soname=linux-vdso64.so.1
-AS64FLAGS := -D__VDSO64__ -s
+LD64FLAGS := -Wl,-soname=linux-vdso64.so.1
+AS64FLAGS := -D__VDSO64__
 
 targets += vdso32.lds
 CPPFLAGS_vdso32.lds += -P -C -Upowerpc
@@ -93,15 +102,15 @@ include/generated/vdso64-offsets.h: $(obj)/vdso64.so.dbg FORCE
 
 # actual build commands
 quiet_cmd_vdso32ld_and_check = VDSO32L $@
-      cmd_vdso32ld_and_check = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) -z noexecstack ; $(cmd_vdso_check)
+      cmd_vdso32ld_and_check = $(VDSOCC) $(ldflags-y) $(CC32FLAGS) $(LD32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^); $(cmd_vdso_check)
 quiet_cmd_vdso32as = VDSO32A $@
       cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) $(AS32FLAGS) -c -o $@ $<
 quiet_cmd_vdso32cc = VDSO32C $@
       cmd_vdso32cc = $(VDSOCC) $(c_flags) $(CC32FLAGS) -c -o $@ $<
 
 quiet_cmd_vdso64ld_and_check = VDSO64L $@
-      cmd_vdso64ld_and_check = $(VDSOCC) $(c_flags) $(CC64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) -z noexecstack ; $(cmd_vdso_check)
+      cmd_vdso64ld_and_check = $(VDSOCC) $(ldflags-y) $(LD64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^); $(cmd_vdso_check)
 quiet_cmd_vdso64as = VDSO64A $@
-      cmd_vdso64as = $(VDSOCC) $(a_flags) $(CC64FLAGS) $(AS64FLAGS) -c -o $@ $<
+      cmd_vdso64as = $(VDSOCC) $(a_flags) $(AS64FLAGS) -c -o $@ $<
 
 OBJECT_FILES_NON_STANDARD := y
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index 9e2b95a222a9..34f9542636e9 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -22,10 +22,10 @@ KBUILD_AFLAGS += -DBUILD_VDSO
 KBUILD_CFLAGS += -DBUILD_VDSO -DDISABLE_BRANCH_PROFILING
 
 KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS))
-KBUILD_AFLAGS_64 += -m64 -s
+KBUILD_AFLAGS_64 += -m64
 
 KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS))
-KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin
+KBUILD_CFLAGS_64 += -m64 -fPIC -fno-common -fno-builtin
 ldflags-y := -fPIC -shared -soname=linux-vdso64.so.1 \
 	     --hash-style=both --build-id=sha1 -T
 
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index d237bc6841cb..32573b4f9bd2 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -24,7 +24,7 @@ KCSAN_SANITIZE := n
 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
 KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
-KBUILD_CFLAGS += -c -MD -Os -m64 -msoft-float -fno-common
+KBUILD_CFLAGS += -Os -m64 -msoft-float -fno-common
 KBUILD_CFLAGS += -fno-stack-protector
 KBUILD_CFLAGS += $(CLANG_FLAGS)
 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index 591125c42d49..b5e29f99c02c 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -8,13 +8,6 @@
 OBJECTS := head_32.o misc.o cache.o piggy.o \
            ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o
 
-# These were previously generated files. When you are building the kernel
-# with O=, make sure to remove the stale files in the output tree. Otherwise,
-# the build system wrongly compiles the stale ones.
-ifdef building_out_of_srctree
-$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S))
-endif
-
 targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
            vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
 
diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index e1dc4292bd22..dee6f66353b3 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -72,4 +72,4 @@ CFLAGS_null.o = -DDEV_NULL=$(DEV_NULL_PATH)
 
 CFLAGS_xterm.o += '-DCONFIG_XTERM_CHAN_DEFAULT_EMULATOR="$(CONFIG_XTERM_CHAN_DEFAULT_EMULATOR)"'
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 1c2d4b29a3d4..811188be954c 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -29,7 +29,7 @@ obj-$(CONFIG_GENERIC_PCI_IOMAP) += ioport.o
 
 USER_OBJS := config.o
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
 
 targets := config.c config.tmp capflags.c
 
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile
index f3d494a4fd9b..f93972a25765 100644
--- a/arch/um/kernel/skas/Makefile
+++ b/arch/um/kernel/skas/Makefile
@@ -14,4 +14,4 @@ UNPROFILE_OBJS := clone.o
 
 KCOV_INSTRUMENT := n
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 77ac50baa3f8..544e0b344c75 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -18,4 +18,4 @@ USER_OBJS := $(user-objs-y) elf_aux.o execvp.o file.o helper.o irq.o \
 	main.o mem.o process.o registers.o sigio.o signal.o start_up.o time.o \
 	tty.o umid.o util.o
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/drivers/Makefile b/arch/um/os-Linux/drivers/Makefile
index d79e75f1b69a..cf2d75bb1884 100644
--- a/arch/um/os-Linux/drivers/Makefile
+++ b/arch/um/os-Linux/drivers/Makefile
@@ -10,4 +10,4 @@ obj-y =
 obj-$(CONFIG_UML_NET_ETHERTAP) += ethertap.o
 obj-$(CONFIG_UML_NET_TUNTAP) += tuntap.o
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/skas/Makefile b/arch/um/os-Linux/skas/Makefile
index c4566e788815..75f11989d2e9 100644
--- a/arch/um/os-Linux/skas/Makefile
+++ b/arch/um/os-Linux/skas/Makefile
@@ -7,4 +7,4 @@ obj-y := mem.o process.o
 
 USER_OBJS := $(obj-y)
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index b3c1ae084180..b89e2e0024c5 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -17,7 +17,7 @@ LDS_EXTRA		:= -Ui386
 export LDS_EXTRA
 
 # First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
-include arch/x86/Makefile_32.cpu
+include $(srctree)/arch/x86/Makefile_32.cpu
 
 # prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
 cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 1acff356d97a..6b6cfe607bdb 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -50,7 +50,7 @@ KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
 KBUILD_CFLAGS += -D__DISABLE_EXPORTS
 # Disable relocation relaxation in case the link is not PIE.
-KBUILD_CFLAGS += $(call as-option,-Wa$(comma)-mrelax-relocations=no)
+KBUILD_CFLAGS += $(call cc-option,-Wa$(comma)-mrelax-relocations=no)
 KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h
 
 # sev.c indirectly inludes inat-table.h which is generated during
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index bddfc9a46645..90e820ac9771 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 PHONY += posttest
 
-ifeq ($(KBUILD_VERBOSE),1)
+ifneq ($(findstring 1, $(KBUILD_VERBOSE)),)
   posttest_verbose = -v
 else
   posttest_verbose =
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile
index 3d5cd2e57820..ee89f6bb9242 100644
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -48,4 +48,4 @@ include/generated/user_constants.h: $(obj)/user-offsets.s FORCE
 UNPROFILE_OBJS := stub_segv.o
 CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/x86/um/os-Linux/Makefile b/arch/x86/um/os-Linux/Makefile
index 253bfb8cb702..ae169125d03f 100644
--- a/arch/x86/um/os-Linux/Makefile
+++ b/arch/x86/um/os-Linux/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_64BIT) += prctl.o
 
 USER_OBJS := $(obj-y)
 
-include arch/um/scripts/Makefile.rules
+include $(srctree)/arch/um/scripts/Makefile.rules