From aaa2e7ac80f679230faf28a8e12e8d68dbe977eb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 25 Dec 2016 01:22:09 -0500 Subject: add asm-generic/extable.h ... and make the users of generic uaccess.h use that. Signed-off-by: Al Viro --- arch/h8300/include/asm/Kbuild | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/h8300') diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild index 341740c3581c..f14e4e6ccbde 100644 --- a/arch/h8300/include/asm/Kbuild +++ b/arch/h8300/include/asm/Kbuild @@ -13,6 +13,7 @@ generic-y += dma.h generic-y += emergency-restart.h generic-y += errno.h generic-y += exec.h +generic-y += extable.h generic-y += fb.h generic-y += fcntl.h generic-y += ftrace.h -- cgit v1.2.3 From 3fb50075284433093eba7c43e75b16eaa36eeabd Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 28 Mar 2017 00:51:43 -0400 Subject: asm-generic/uaccess.h: don't mess with __copy_{to,from}_user only h8300 actually used those; might as well define them there. Signed-off-by: Al Viro --- arch/c6x/include/asm/uaccess.h | 3 -- arch/h8300/include/asm/Kbuild | 1 - arch/h8300/include/asm/uaccess.h | 52 +++++++++++++++++++++++++++++ arch/um/include/asm/uaccess.h | 2 -- arch/unicore32/include/asm/uaccess.h | 2 -- include/asm-generic/uaccess.h | 63 ------------------------------------ 6 files changed, 52 insertions(+), 71 deletions(-) create mode 100644 arch/h8300/include/asm/uaccess.h (limited to 'arch/h8300') diff --git a/arch/c6x/include/asm/uaccess.h b/arch/c6x/include/asm/uaccess.h index 453dd263bee3..79fb6f439c5c 100644 --- a/arch/c6x/include/asm/uaccess.h +++ b/arch/c6x/include/asm/uaccess.h @@ -94,9 +94,6 @@ static inline __must_check long __copy_to_user(void __user *to, return 0; } -#define __copy_to_user __copy_to_user -#define __copy_from_user __copy_from_user - extern int _access_ok(unsigned long addr, unsigned long size); #ifdef CONFIG_ACCESS_CHECK #define __access_ok _access_ok diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild index f14e4e6ccbde..757cdeb24e6e 100644 --- a/arch/h8300/include/asm/Kbuild +++ b/arch/h8300/include/asm/Kbuild @@ -69,7 +69,6 @@ generic-y += tlbflush.h generic-y += trace_clock.h generic-y += topology.h generic-y += types.h -generic-y += uaccess.h generic-y += ucontext.h generic-y += unaligned.h generic-y += vga.h diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h new file mode 100644 index 000000000000..c156a416a279 --- /dev/null +++ b/arch/h8300/include/asm/uaccess.h @@ -0,0 +1,52 @@ +#ifndef _ASM_UACCESS_H +#define _ASM_UACCESS_H + +#include + +static inline __must_check long __copy_from_user(void *to, + const void __user * from, unsigned long n) +{ + if (__builtin_constant_p(n)) { + switch(n) { + case 1: + *(u8 *)to = *(u8 __force *)from; + return 0; + case 2: + *(u16 *)to = *(u16 __force *)from; + return 0; + case 4: + *(u32 *)to = *(u32 __force *)from; + return 0; + } + } + + memcpy(to, (const void __force *)from, n); + return 0; +} + +static inline __must_check long __copy_to_user(void __user *to, + const void *from, unsigned long n) +{ + if (__builtin_constant_p(n)) { + switch(n) { + case 1: + *(u8 __force *)to = *(u8 *)from; + return 0; + case 2: + *(u16 __force *)to = *(u16 *)from; + return 0; + case 4: + *(u32 __force *)to = *(u32 *)from; + return 0; + default: + break; + } + } + + memcpy((void __force *)to, from, n); + return 0; +} + +#include + +#endif diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h index e992bb57da5a..9396c8a4e920 100644 --- a/arch/um/include/asm/uaccess.h +++ b/arch/um/include/asm/uaccess.h @@ -31,8 +31,6 @@ static inline int __access_ok(unsigned long addr, unsigned long size); /* Teach asm-generic/uaccess.h that we have C functions for these. */ #define __access_ok __access_ok #define __clear_user __clear_user -#define __copy_to_user __copy_to_user -#define __copy_from_user __copy_from_user #define __strnlen_user __strnlen_user #define __strncpy_from_user __strncpy_from_user #define __copy_to_user_inatomic __copy_to_user diff --git a/arch/unicore32/include/asm/uaccess.h b/arch/unicore32/include/asm/uaccess.h index 1196c88c2f9b..b2bcab69dfee 100644 --- a/arch/unicore32/include/asm/uaccess.h +++ b/arch/unicore32/include/asm/uaccess.h @@ -14,8 +14,6 @@ #include -#define __copy_from_user __copy_from_user -#define __copy_to_user __copy_to_user #define __strncpy_from_user __strncpy_from_user #define __strnlen_user __strnlen_user #define __clear_user __clear_user diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h index 4b4f4a7f22c6..b048246a606b 100644 --- a/include/asm-generic/uaccess.h +++ b/include/asm-generic/uaccess.h @@ -47,69 +47,6 @@ static inline int __access_ok(unsigned long addr, unsigned long size) } #endif -/* - * architectures with an MMU should override these two - */ -#ifndef __copy_from_user -static inline __must_check long __copy_from_user(void *to, - const void __user * from, unsigned long n) -{ - if (__builtin_constant_p(n)) { - switch(n) { - case 1: - *(u8 *)to = *(u8 __force *)from; - return 0; - case 2: - *(u16 *)to = *(u16 __force *)from; - return 0; - case 4: - *(u32 *)to = *(u32 __force *)from; - return 0; -#ifdef CONFIG_64BIT - case 8: - *(u64 *)to = *(u64 __force *)from; - return 0; -#endif - default: - break; - } - } - - memcpy(to, (const void __force *)from, n); - return 0; -} -#endif - -#ifndef __copy_to_user -static inline __must_check long __copy_to_user(void __user *to, - const void *from, unsigned long n) -{ - if (__builtin_constant_p(n)) { - switch(n) { - case 1: - *(u8 __force *)to = *(u8 *)from; - return 0; - case 2: - *(u16 __force *)to = *(u16 *)from; - return 0; - case 4: - *(u32 __force *)to = *(u32 *)from; - return 0; -#ifdef CONFIG_64BIT - case 8: - *(u64 __force *)to = *(u64 *)from; - return 0; -#endif - default: - break; - } - } - - memcpy((void __force *)to, from, n); - return 0; -} -#endif - /* * These are the main single-value transfer routines. They automatically * use the right size if we just have the right pointer type. -- cgit v1.2.3 From 33ab2da801debd947bf0f36848d2b9ea20fad835 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 28 Mar 2017 01:22:03 -0400 Subject: 8300: switch to RAW_COPY_USER Signed-off-by: Al Viro --- arch/h8300/Kconfig | 1 + arch/h8300/include/asm/uaccess.h | 10 ++++++---- 2 files changed, 7 insertions(+), 4 deletions(-) (limited to 'arch/h8300') diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 3ae852507e57..473883417004 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -22,6 +22,7 @@ config H8300 select HAVE_ARCH_KGDB select HAVE_ARCH_HASH select CPU_NO_EFFICIENT_FFS + select ARCH_HAS_RAW_COPY_USER config RWSEM_GENERIC_SPINLOCK def_bool y diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h index c156a416a279..6f6144a240ce 100644 --- a/arch/h8300/include/asm/uaccess.h +++ b/arch/h8300/include/asm/uaccess.h @@ -3,8 +3,8 @@ #include -static inline __must_check long __copy_from_user(void *to, - const void __user * from, unsigned long n) +static inline __must_check unsigned long +raw_copy_from_user(void *to, const void __user * from, unsigned long n) { if (__builtin_constant_p(n)) { switch(n) { @@ -24,8 +24,8 @@ static inline __must_check long __copy_from_user(void *to, return 0; } -static inline __must_check long __copy_to_user(void __user *to, - const void *from, unsigned long n) +static inline __must_check unsigned long +raw_copy_to_user(void __user *to, const void *from, unsigned long n) { if (__builtin_constant_p(n)) { switch(n) { @@ -46,6 +46,8 @@ static inline __must_check long __copy_to_user(void __user *to, memcpy((void __force *)to, from, n); return 0; } +#define INLINE_COPY_FROM_USER +#define INLINE_COPY_TO_USER #include -- cgit v1.2.3 From 701cac61d0250912b89cbc28589969530179099a Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 5 Apr 2017 19:15:53 -0400 Subject: CONFIG_ARCH_HAS_RAW_COPY_USER is unconditional now all architectures converted Signed-off-by: Al Viro --- arch/Kconfig | 3 --- arch/alpha/Kconfig | 1 - arch/arc/Kconfig | 1 - arch/arm/Kconfig | 1 - arch/arm64/Kconfig | 1 - arch/avr32/Kconfig | 1 - arch/blackfin/Kconfig | 1 - arch/c6x/Kconfig | 1 - arch/cris/Kconfig | 1 - arch/frv/Kconfig | 1 - arch/h8300/Kconfig | 1 - arch/hexagon/Kconfig | 1 - arch/ia64/Kconfig | 1 - arch/m32r/Kconfig | 1 - arch/m68k/Kconfig | 1 - arch/metag/Kconfig | 1 - arch/microblaze/Kconfig | 1 - arch/mips/Kconfig | 1 - arch/mn10300/Kconfig | 1 - arch/nios2/Kconfig | 1 - arch/openrisc/Kconfig | 1 - arch/parisc/Kconfig | 1 - arch/powerpc/Kconfig | 1 - arch/s390/Kconfig | 1 - arch/score/Kconfig | 1 - arch/sh/Kconfig | 1 - arch/sparc/Kconfig | 1 - arch/tile/Kconfig | 1 - arch/um/Kconfig.common | 1 - arch/unicore32/Kconfig | 1 - arch/x86/Kconfig | 1 - arch/xtensa/Kconfig | 1 - include/asm-generic/uaccess.h | 41 ----------------------------------------- include/linux/uaccess.h | 7 ++----- lib/Makefile | 4 +--- 35 files changed, 3 insertions(+), 83 deletions(-) (limited to 'arch/h8300') diff --git a/arch/Kconfig b/arch/Kconfig index 315d37626ddc..cd211a14a88f 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -847,7 +847,4 @@ config STRICT_MODULE_RWX config ARCH_WANT_RELAX_ORDER bool -config ARCH_HAS_RAW_COPY_USER - bool - source "kernel/gcov/Kconfig" diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 1be5f61dc630..0e49d39ea74a 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -26,7 +26,6 @@ config ALPHA select ODD_RT_SIGACTION select OLD_SIGSUSPEND select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67 - select ARCH_HAS_RAW_COPY_USER help The Alpha is a 64-bit general-purpose processor designed and marketed by the Digital Equipment Corporation of blessed memory, diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 7e213ff4f01f..c9f30f4763ab 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -44,7 +44,6 @@ config ARC select HAVE_GENERIC_DMA_COHERENT select HAVE_KERNEL_GZIP select HAVE_KERNEL_LZMA - select ARCH_HAS_RAW_COPY_USER config MIGHT_HAVE_PCI bool diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 6fab7f34739c..0d4e71b42c77 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -96,7 +96,6 @@ config ARM select PERF_USE_VMALLOC select RTC_LIB select SYS_SUPPORTS_APM_EMULATION - select ARCH_HAS_RAW_COPY_USER # Above selects are sorted alphabetically; please add new ones # according to that. Thanks. help diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 3c833ff3303c..3741859765cf 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -115,7 +115,6 @@ config ARM64 select SPARSE_IRQ select SYSCTL_EXCEPTION_TRACE select THREAD_INFO_IN_TASK - select ARCH_HAS_RAW_COPY_USER help ARM 64-bit (AArch64) Linux support. diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 8c349f2a9ebb..7e75d45e20cd 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -19,7 +19,6 @@ config AVR32 select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA select HAVE_NMI - select ARCH_HAS_RAW_COPY_USER help AVR32 is a high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 919dad1436f7..3c1bd640042a 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -41,7 +41,6 @@ config BLACKFIN select MODULES_USE_ELF_RELA select HAVE_DEBUG_STACKOVERFLOW select HAVE_NMI - select ARCH_HAS_RAW_COPY_USER config GENERIC_CSUM def_bool y diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig index 3c7bd9a29f90..5aa8ea8bad2d 100644 --- a/arch/c6x/Kconfig +++ b/arch/c6x/Kconfig @@ -18,7 +18,6 @@ config C6X select GENERIC_CLOCKEVENTS select MODULES_USE_ELF_RELA select ARCH_NO_COHERENT_DMA_MMAP - select ARCH_HAS_RAW_COPY_USER config MMU def_bool n diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 36f94c45e3f9..71b758dc3a96 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -71,7 +71,6 @@ config CRIS select GENERIC_SCHED_CLOCK if ETRAX_ARCH_V32 select HAVE_DEBUG_BUGVERBOSE if ETRAX_ARCH_V32 select HAVE_NMI - select ARCH_HAS_RAW_COPY_USER config HZ int diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index e489fef111dd..eefd9a4ed156 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -16,7 +16,6 @@ config FRV select OLD_SIGACTION select HAVE_DEBUG_STACKOVERFLOW select ARCH_NO_COHERENT_DMA_MMAP - select ARCH_HAS_RAW_COPY_USER config ZONE_DMA bool diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig index 473883417004..3ae852507e57 100644 --- a/arch/h8300/Kconfig +++ b/arch/h8300/Kconfig @@ -22,7 +22,6 @@ config H8300 select HAVE_ARCH_KGDB select HAVE_ARCH_HASH select CPU_NO_EFFICIENT_FFS - select ARCH_HAS_RAW_COPY_USER config RWSEM_GENERIC_SPINLOCK def_bool y diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 0c536a83ea71..1941e4baaee6 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -26,7 +26,6 @@ config HEXAGON select GENERIC_CLOCKEVENTS_BROADCAST select MODULES_USE_ELF_RELA select GENERIC_CPU_DEVICES - select ARCH_HAS_RAW_COPY_USER ---help--- Qualcomm Hexagon is a processor architecture designed for high performance and low power across a wide variety of applications. diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 0ed0e44856b2..18ca6a9ce566 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -53,7 +53,6 @@ config IA64 select ARCH_USE_CMPXCHG_LOCKREF select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_HARDENED_USERCOPY - select ARCH_HAS_RAW_COPY_USER default y help The Itanium Processor Family is Intel's 64-bit successor to diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig index b3e82bdd6db0..95474460b367 100644 --- a/arch/m32r/Kconfig +++ b/arch/m32r/Kconfig @@ -19,7 +19,6 @@ config M32R select HAVE_DEBUG_STACKOVERFLOW select CPU_NO_EFFICIENT_FFS select DMA_NOOP_OPS - select ARCH_HAS_RAW_COPY_USER config SBUS bool diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 7d345758ea16..d140206d5d29 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -22,7 +22,6 @@ config M68K select MODULES_USE_ELF_RELA select OLD_SIGSUSPEND3 select OLD_SIGACTION - select ARCH_HAS_RAW_COPY_USER config RWSEM_GENERIC_SPINLOCK bool diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig index ecce0c5ec8e8..5b7a45d99cfb 100644 --- a/arch/metag/Kconfig +++ b/arch/metag/Kconfig @@ -1,6 +1,5 @@ config METAG def_bool y - select ARCH_HAS_RAW_COPY_USER select EMBEDDED select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 1aff3658a104..85885a501dce 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -34,7 +34,6 @@ config MICROBLAZE select TRACING_SUPPORT select VIRT_TO_BUS select CPU_NO_EFFICIENT_FFS - select ARCH_HAS_RAW_COPY_USER config SWAP def_bool n diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index aff5633bfe4d..a008a9f03072 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -69,7 +69,6 @@ config MIPS select HAVE_EXIT_THREAD select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_ARCH_HARDENED_USERCOPY - select ARCH_HAS_RAW_COPY_USER menu "Machine selection" diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index a96f3dcb0119..38e3494bfb63 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -16,7 +16,6 @@ config MN10300 select OLD_SIGACTION select HAVE_DEBUG_STACKOVERFLOW select ARCH_NO_COHERENT_DMA_MMAP - select ARCH_HAS_RAW_COPY_USER config AM33_2 def_bool n diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig index 45b4727e3136..51a56c8b04b4 100644 --- a/arch/nios2/Kconfig +++ b/arch/nios2/Kconfig @@ -16,7 +16,6 @@ config NIOS2 select SPARSE_IRQ select USB_ARCH_HAS_HCD if USB_SUPPORT select CPU_NO_EFFICIENT_FFS - select ARCH_HAS_RAW_COPY_USER config GENERIC_CSUM def_bool y diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index 38954181fa96..1e95920b0737 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -28,7 +28,6 @@ config OPENRISC select OR1K_PIC select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1 select NO_BOOTMEM - select ARCH_HAS_RAW_COPY_USER config MMU def_bool y diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 15b7b279a169..ad294b3fb90b 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -41,7 +41,6 @@ config PARISC select GENERIC_CLOCKEVENTS select ARCH_NO_COHERENT_DMA_MMAP select CPU_NO_EFFICIENT_FFS - select ARCH_HAS_RAW_COPY_USER help The PA-RISC microprocessor is designed by Hewlett-Packard and used diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 839f08887269..97a8bc8a095c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -87,7 +87,6 @@ config PPC select ARCH_HAS_DMA_SET_COHERENT_MASK select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_GCOV_PROFILE_ALL - select ARCH_HAS_RAW_COPY_USER select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE select ARCH_HAS_SG_CHAIN select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 0724dbf2d8f8..a2dcef0aacc7 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -178,7 +178,6 @@ config S390 select ARCH_HAS_SCALED_CPUTIME select VIRT_TO_BUS select HAVE_NMI - select ARCH_HAS_RAW_COPY_USER config SCHED_OMIT_FRAME_POINTER diff --git a/arch/score/Kconfig b/arch/score/Kconfig index 4d241cfedc3b..507d63181389 100644 --- a/arch/score/Kconfig +++ b/arch/score/Kconfig @@ -15,7 +15,6 @@ config SCORE select MODULES_USE_ELF_REL select CLONE_BACKWARDS select CPU_NO_EFFICIENT_FFS - select ARCH_HAS_RAW_COPY_USER choice prompt "System type" diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index c689645eb8b7..ee086958b2b2 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -48,7 +48,6 @@ config SUPERH select HAVE_ARCH_AUDITSYSCALL select HAVE_FUTEX_CMPXCHG if FUTEX select HAVE_NMI - select ARCH_HAS_RAW_COPY_USER help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 68353048f24e..68ac5c7cd982 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -45,7 +45,6 @@ config SPARC select HAVE_ARCH_HARDENED_USERCOPY select PROVE_LOCKING_SMALL if PROVE_LOCKING select ARCH_WANT_RELAX_ORDER - select ARCH_HAS_RAW_COPY_USER config SPARC32 def_bool !64BIT diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 27808d86eb57..4583c0320059 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -33,7 +33,6 @@ config TILE select USER_STACKTRACE_SUPPORT select USE_PMC if PERF_EVENTS select VIRT_TO_BUS - select ARCH_HAS_RAW_COPY_USER config MMU def_bool y diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index e13f763849b1..fd443852103c 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -13,7 +13,6 @@ config UML select GENERIC_CLOCKEVENTS select HAVE_GCC_PLUGINS select TTY # Needed for line.c - select ARCH_HAS_RAW_COPY_USER config MMU bool diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 319519eaed24..0769066929c6 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -18,7 +18,6 @@ config UNICORE32 select ARCH_WANT_FRAME_POINTERS select GENERIC_IOMAP select MODULES_USE_ELF_REL - select ARCH_HAS_RAW_COPY_USER help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 5f59fc388063..cc98d5a294ee 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -175,7 +175,6 @@ config X86 select USER_STACKTRACE_SUPPORT select VIRT_TO_BUS select X86_FEATURE_NAMES if PROC_FS - select ARCH_HAS_RAW_COPY_USER config INSTRUCTION_DECODER def_bool y diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 043d37d45919..f4126cf997a4 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -29,7 +29,6 @@ config XTENSA select NO_BOOTMEM select PERF_USE_VMALLOC select VIRT_TO_BUS - select ARCH_HAS_RAW_COPY_USER help Xtensa processors are 32-bit RISC machines designed by Tensilica primarily for embedded systems. These processors are both diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h index d65c311eb128..bbe4bb438e39 100644 --- a/include/asm-generic/uaccess.h +++ b/include/asm-generic/uaccess.h @@ -86,11 +86,7 @@ static inline int __access_ok(unsigned long addr, unsigned long size) static inline int __put_user_fn(size_t size, void __user *ptr, void *x) { -#ifdef CONFIG_ARCH_HAS_RAW_COPY_USER return unlikely(raw_copy_to_user(ptr, x, size)) ? -EFAULT : 0; -#else - return unlikely(__copy_to_user(ptr, x, size)) ? -EFAULT : 0; -#endif } #define __put_user_fn(sz, u, k) __put_user_fn(sz, u, k) @@ -151,11 +147,7 @@ extern int __put_user_bad(void) __attribute__((noreturn)); #ifndef __get_user_fn static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) { -#ifdef CONFIG_ARCH_HAS_RAW_COPY_USER return unlikely(raw_copy_from_user(x, ptr, size)) ? -EFAULT : 0; -#else - return unlikely(__copy_from_user(x, ptr, size)) ? -EFAULT : 0; -#endif } #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k) @@ -164,39 +156,6 @@ static inline int __get_user_fn(size_t size, const void __user *ptr, void *x) extern int __get_user_bad(void) __attribute__((noreturn)); -#ifndef CONFIG_ARCH_HAS_RAW_COPY_USER - -#ifndef __copy_from_user_inatomic -#define __copy_from_user_inatomic __copy_from_user -#endif - -#ifndef __copy_to_user_inatomic -#define __copy_to_user_inatomic __copy_to_user -#endif - -static inline long copy_from_user(void *to, - const void __user * from, unsigned long n) -{ - unsigned long res = n; - might_fault(); - if (likely(access_ok(VERIFY_READ, from, n))) - res = __copy_from_user(to, from, n); - if (unlikely(res)) - memset(to + (n - res), 0, res); - return res; -} - -static inline long copy_to_user(void __user *to, - const void *from, unsigned long n) -{ - might_fault(); - if (access_ok(VERIFY_WRITE, to, n)) - return __copy_to_user(to, from, n); - else - return n; -} -#endif - /* * Copy a null terminated string from userspace. */ diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 7fc2104b88bc..e0cbfb09e60f 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -12,12 +12,10 @@ #include -#ifdef CONFIG_ARCH_HAS_RAW_COPY_USER /* * Architectures should provide two primitives (raw_copy_{to,from}_user()) - * select ARCH_HAS_RAW_COPY_FROM_USER and get rid of their private instances - * of copy_{to,from}_user() and __copy_{to,from}_user{,_inatomic}(). Once - * all of them switch, this part of linux/uaccess.h will become unconditional. + * and get rid of their private instances of copy_{to,from}_user() and + * __copy_{to,from}_user{,_inatomic}(). * * raw_copy_{to,from}_user(to, from, size) should copy up to size bytes and * return the amount left to copy. They should assume that access_ok() has @@ -196,7 +194,6 @@ copy_in_user(void __user *to, const void *from, unsigned long n) return n; } #endif -#endif static __always_inline void pagefault_disabled_inc(void) { diff --git a/lib/Makefile b/lib/Makefile index 7d875c389172..b47cf97e1e68 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -41,7 +41,7 @@ obj-y += bcd.o div64.o sort.o parser.o debug_locks.o random32.o \ gcd.o lcm.o list_sort.o uuid.o flex_array.o iov_iter.o clz_ctz.o \ bsearch.o find_bit.o llist.o memweight.o kfifo.o \ percpu-refcount.o percpu_ida.o rhashtable.o reciprocal_div.o \ - once.o refcount.o + once.o refcount.o usercopy.o obj-y += string_helpers.o obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o obj-y += hexdump.o @@ -242,5 +242,3 @@ UBSAN_SANITIZE_ubsan.o := n obj-$(CONFIG_SBITMAP) += sbitmap.o obj-$(CONFIG_PARMAN) += parman.o - -obj-$(CONFIG_ARCH_HAS_RAW_COPY_USER) += usercopy.o -- cgit v1.2.3