x86/copy_mc_64: Remove .fixup usage

Place the anonymous .fixup code at the tail of the regular functions.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211110101325.127055887@infradead.org

Author: Peter Zijlstra

arch/x86/lib/copy_mc_64.S

@@ -78,9 +78,7 @@ SYM_FUNC_START(copy_mc_fragile)
 	xorl %eax, %eax
 .L_done:
 	RET
-SYM_FUNC_END(copy_mc_fragile)
 
-	.section .fixup, "ax"
 	/*
 	 * Return number of bytes not copied for any failure. Note that
 	 * there is no "tail" handling since the source buffer is 8-byte
@@ -105,14 +103,14 @@ SYM_FUNC_END(copy_mc_fragile)
 	movl	%ecx, %edx
 	jmp copy_mc_fragile_handle_tail
 
-	.previous
-
 	_ASM_EXTABLE_TYPE(.L_read_leading_bytes, .E_leading_bytes, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE_TYPE(.L_read_words, .E_read_words, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE_TYPE(.L_read_trailing_bytes, .E_trailing_bytes, EX_TYPE_DEFAULT_MCE_SAFE)
 	_ASM_EXTABLE(.L_write_leading_bytes, .E_leading_bytes)
 	_ASM_EXTABLE(.L_write_words, .E_write_words)
 	_ASM_EXTABLE(.L_write_trailing_bytes, .E_trailing_bytes)
+
+SYM_FUNC_END(copy_mc_fragile)
 #endif /* CONFIG_X86_MCE */
 
 /*
@@ -133,9 +131,7 @@ SYM_FUNC_START(copy_mc_enhanced_fast_string)
 	/* Copy successful. Return zero */
 	xorl %eax, %eax
 	RET
-SYM_FUNC_END(copy_mc_enhanced_fast_string)
 
-	.section .fixup, "ax"
 .E_copy:
 	/*
 	 * On fault %rcx is updated such that the copy instruction could
@@ -147,7 +143,7 @@ SYM_FUNC_END(copy_mc_enhanced_fast_string)
 	movq %rcx, %rax
 	RET
 
-	.previous
-
 	_ASM_EXTABLE_TYPE(.L_copy, .E_copy, EX_TYPE_DEFAULT_MCE_SAFE)
+
+SYM_FUNC_END(copy_mc_enhanced_fast_string)
 #endif /* !CONFIG_UML */