summaryrefslogtreecommitdiffstats
path: root/arch/mips
diff options
context:
space:
mode:
authorArnd Bergmann <arnd@arndb.de>2021-09-08 15:18:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-08 15:32:35 -0700
commita7a08b275a8bbade798c4bdaad07ade68fe7003c (patch)
tree25076445a217fe41316ba7c589bc126d3919ff42 /arch/mips
parent59ab844eed9c6b01d32dcb27b57accc23771b324 (diff)
downloadlinux-a7a08b275a8bbade798c4bdaad07ade68fe7003c.tar.bz2
arch: remove compat_alloc_user_space
All users of compat_alloc_user_space() and copy_in_user() have been removed from the kernel, only a few functions in sparc remain that can be changed to calling arch_copy_in_user() instead. Link: https://lkml.kernel.org/r/20210727144859.4150043-7-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/cavium-octeon/octeon-memcpy.S2
-rw-r--r--arch/mips/include/asm/compat.h8
-rw-r--r--arch/mips/include/asm/uaccess.h26
-rw-r--r--arch/mips/lib/memcpy.S11
4 files changed, 0 insertions, 47 deletions
diff --git a/arch/mips/cavium-octeon/octeon-memcpy.S b/arch/mips/cavium-octeon/octeon-memcpy.S
index 600d018cf354..0a515cde1c18 100644
--- a/arch/mips/cavium-octeon/octeon-memcpy.S
+++ b/arch/mips/cavium-octeon/octeon-memcpy.S
@@ -154,8 +154,6 @@ FEXPORT(__raw_copy_from_user)
EXPORT_SYMBOL(__raw_copy_from_user)
FEXPORT(__raw_copy_to_user)
EXPORT_SYMBOL(__raw_copy_to_user)
-FEXPORT(__raw_copy_in_user)
-EXPORT_SYMBOL(__raw_copy_in_user)
/*
* Note: dst & src may be unaligned, len may be 0
* Temps
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index 53f015a1b0a7..bbb3bc5a42fd 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -96,14 +96,6 @@ struct compat_statfs {
#define COMPAT_OFF_T_MAX 0x7fffffff
-static inline void __user *arch_compat_alloc_user_space(long len)
-{
- struct pt_regs *regs = (struct pt_regs *)
- ((unsigned long) current_thread_info() + THREAD_SIZE - 32) - 1;
-
- return (void __user *) (regs->regs[29] - len);
-}
-
struct compat_ipc64_perm {
compat_key_t key;
__compat_uid32_t uid;
diff --git a/arch/mips/include/asm/uaccess.h b/arch/mips/include/asm/uaccess.h
index 783fecce65c8..f8f74f9f5883 100644
--- a/arch/mips/include/asm/uaccess.h
+++ b/arch/mips/include/asm/uaccess.h
@@ -428,7 +428,6 @@ do { \
extern size_t __raw_copy_from_user(void *__to, const void *__from, size_t __n);
extern size_t __raw_copy_to_user(void *__to, const void *__from, size_t __n);
-extern size_t __raw_copy_in_user(void *__to, const void *__from, size_t __n);
static inline unsigned long
raw_copy_from_user(void *to, const void __user *from, unsigned long n)
@@ -480,31 +479,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
#define INLINE_COPY_FROM_USER
#define INLINE_COPY_TO_USER
-static inline unsigned long
-raw_copy_in_user(void __user *to, const void __user *from, unsigned long n)
-{
- register void __user *__cu_to_r __asm__("$4");
- register const void __user *__cu_from_r __asm__("$5");
- register long __cu_len_r __asm__("$6");
-
- __cu_to_r = to;
- __cu_from_r = from;
- __cu_len_r = n;
-
- __asm__ __volatile__(
- ".set\tnoreorder\n\t"
- __MODULE_JAL(__raw_copy_in_user)
- ".set\tnoat\n\t"
- __UA_ADDU "\t$1, %1, %2\n\t"
- ".set\tat\n\t"
- ".set\treorder"
- : "+r" (__cu_to_r), "+r" (__cu_from_r), "+r" (__cu_len_r)
- :
- : "$8", "$9", "$10", "$11", "$12", "$14", "$15", "$24", "$31",
- DADDI_SCRATCH, "memory");
- return __cu_len_r;
-}
-
extern __kernel_size_t __bzero(void __user *addr, __kernel_size_t size);
/*
diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index e19fb98b5d38..277c32296636 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -666,8 +666,6 @@ FEXPORT(__raw_copy_from_user)
EXPORT_SYMBOL(__raw_copy_from_user)
FEXPORT(__raw_copy_to_user)
EXPORT_SYMBOL(__raw_copy_to_user)
-FEXPORT(__raw_copy_in_user)
-EXPORT_SYMBOL(__raw_copy_in_user)
#endif
/* Legacy Mode, user <-> user */
__BUILD_COPY_USER LEGACY_MODE USEROP USEROP
@@ -703,13 +701,4 @@ EXPORT_SYMBOL(__raw_copy_to_user)
__BUILD_COPY_USER EVA_MODE KERNELOP USEROP
END(__raw_copy_to_user)
-/*
- * __copy_in_user (EVA)
- */
-
-LEAF(__raw_copy_in_user)
-EXPORT_SYMBOL(__raw_copy_in_user)
-__BUILD_COPY_USER EVA_MODE USEROP USEROP
-END(__raw_copy_in_user)
-
#endif