HAVE_ARCH_HARDENED_USERCOPY is unconditional now

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/arm/Kconfig

@@ -41,7 +41,6 @@ config ARM
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU
 	select HAVE_ARCH_MMAP_RND_BITS if MMU

arch/arm64/Kconfig

@@ -60,7 +60,6 @@ config ARM64
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_BITREVERSE
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select HAVE_ARCH_HUGE_VMAP
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP && !(ARM64_16K_PAGES && ARM64_VA_BITS_48)

arch/ia64/Kconfig

@@ -52,7 +52,6 @@ config IA64
 	select MODULES_USE_ELF_RELA
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select HAVE_ARCH_AUDITSYSCALL
-	select HAVE_ARCH_HARDENED_USERCOPY
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to

arch/mips/Kconfig

@@ -68,7 +68,6 @@ config MIPS
 	select HANDLE_DOMAIN_IRQ
 	select HAVE_EXIT_THREAD
 	select HAVE_REGS_AND_STACK_ACCESS_API
-	select HAVE_ARCH_HARDENED_USERCOPY
 
 menu "Machine selection"
 

arch/parisc/Kconfig

@@ -26,7 +26,6 @@ config PARISC
 	select SYSCTL_ARCH_UNALIGN_ALLOW
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_MOD_ARCH_SPECIFIC
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select VIRT_TO_BUS
 	select MODULES_USE_ELF_RELA
 	select CLONE_BACKWARDS

arch/powerpc/Kconfig

@@ -117,7 +117,6 @@ config PPC
 	select GENERIC_STRNLEN_USER
 	select GENERIC_TIME_VSYSCALL_OLD
 	select HAVE_ARCH_AUDITSYSCALL
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_SECCOMP_FILTER

arch/s390/Kconfig

@@ -124,7 +124,6 @@ config S390
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_EARLY_PFN_TO_NID
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select HAVE_ARCH_JUMP_LABEL
 	select CPU_NO_EFFICIENT_FFS if !HAVE_MARCH_Z9_109_FEATURES
 	select HAVE_ARCH_SECCOMP_FILTER

arch/sparc/Kconfig

@@ -42,7 +42,6 @@ config SPARC
 	select OLD_SIGSUSPEND
 	select ARCH_HAS_SG_CHAIN
 	select CPU_NO_EFFICIENT_FFS
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select PROVE_LOCKING_SMALL if PROVE_LOCKING
 	select ARCH_WANT_RELAX_ORDER
 

arch/x86/Kconfig

@@ -98,7 +98,6 @@ config X86
 	select HAVE_ACPI_APEI_NMI		if ACPI
 	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB
 	select HAVE_ARCH_AUDITSYSCALL
-	select HAVE_ARCH_HARDENED_USERCOPY
 	select HAVE_ARCH_HUGE_VMAP		if X86_64 || X86_PAE
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_ARCH_KASAN			if X86_64 && SPARSEMEM_VMEMMAP

security/Kconfig

@@ -125,17 +125,8 @@ config HAVE_HARDENED_USERCOPY_ALLOCATOR
 	  validating memory ranges against heap object sizes in
 	  support of CONFIG_HARDENED_USERCOPY.
 
-config HAVE_ARCH_HARDENED_USERCOPY
-	bool
-	help
-	  The architecture supports CONFIG_HARDENED_USERCOPY by
-	  calling check_object_size() just before performing the
-	  userspace copies in the low level implementation of
-	  copy_to_user() and copy_from_user().
-
 config HARDENED_USERCOPY
 	bool "Harden memory copies between kernel and userspace"
-	depends on HAVE_ARCH_HARDENED_USERCOPY
 	depends on HAVE_HARDENED_USERCOPY_ALLOCATOR
 	select BUG
 	help