arm64: page: use asm EXPORT_SYMBOL()

For a while now it's been possible to use EXPORT_SYMBOL() in assembly
files, which allows us to place exports immediately after assembly
functions, as we do for C functions.

As a step towards removing arm64ksyms.c, let's move the copy_page and
clear_page exports to the assembly files the functions are defined in.

There should be no functional change as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

arch/arm64/kernel/arm64ksyms.c

@@ -30,9 +30,6 @@
 
 #include <asm/checksum.h>
 
-EXPORT_SYMBOL(copy_page);
-EXPORT_SYMBOL(clear_page);
-
 	/* user mem (segment) */
 EXPORT_SYMBOL(__arch_copy_from_user);
 EXPORT_SYMBOL(__arch_copy_to_user);

arch/arm64/lib/clear_page.S

@@ -37,3 +37,4 @@ ENTRY(clear_page)
 	b.ne	1b
 	ret
 ENDPROC(clear_page)
+EXPORT_SYMBOL(clear_page)

arch/arm64/lib/copy_page.S

@@ -87,3 +87,4 @@ alternative_else_nop_endif
 
 	ret
 ENDPROC(copy_page)
+EXPORT_SYMBOL(copy_page)