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-rw-r--r--arch/x86/include/asm/uaccess_64.h7
-rw-r--r--arch/x86/kernel/x8664_ksyms_64.c1
-rw-r--r--arch/x86/lib/copy_user_64.S6
3 files changed, 5 insertions, 9 deletions
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index ce6fec7ce38..7adebacaa32 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -193,8 +193,11 @@ __must_check long strlen_user(const char __user *str);
193__must_check unsigned long clear_user(void __user *mem, unsigned long len); 193__must_check unsigned long clear_user(void __user *mem, unsigned long len);
194__must_check unsigned long __clear_user(void __user *mem, unsigned long len); 194__must_check unsigned long __clear_user(void __user *mem, unsigned long len);
195 195
196__must_check long __copy_from_user_inatomic(void *dst, const void __user *src, 196static __must_check __always_inline int
197 unsigned size); 197__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
198{
199 return copy_user_generic(dst, (__force const void *)src, size);
200}
198 201
199static __must_check __always_inline int 202static __must_check __always_inline int
200__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) 203__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index a0cdd8cc1d6..cd54276b6be 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -32,7 +32,6 @@ EXPORT_SYMBOL(copy_user_generic);
32EXPORT_SYMBOL(__copy_user_nocache); 32EXPORT_SYMBOL(__copy_user_nocache);
33EXPORT_SYMBOL(_copy_from_user); 33EXPORT_SYMBOL(_copy_from_user);
34EXPORT_SYMBOL(copy_to_user); 34EXPORT_SYMBOL(copy_to_user);
35EXPORT_SYMBOL(__copy_from_user_inatomic);
36 35
37EXPORT_SYMBOL(copy_page); 36EXPORT_SYMBOL(copy_page);
38EXPORT_SYMBOL(clear_page); 37EXPORT_SYMBOL(clear_page);
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index 4be3c415b3e..39369985f1c 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -96,12 +96,6 @@ ENTRY(copy_user_generic)
96 CFI_ENDPROC 96 CFI_ENDPROC
97ENDPROC(copy_user_generic) 97ENDPROC(copy_user_generic)
98 98
99ENTRY(__copy_from_user_inatomic)
100 CFI_STARTPROC
101 ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
102 CFI_ENDPROC
103ENDPROC(__copy_from_user_inatomic)
104
105 .section .fixup,"ax" 99 .section .fixup,"ax"
106 /* must zero dest */ 100 /* must zero dest */
107ENTRY(bad_from_user) 101ENTRY(bad_from_user)