x86/asm: Remove the last GLOBAL user and remove the macro

Convert the remaining 32bit users and remove the GLOBAL macro finally.
In particular, this means to use SYM_ENTRY for the singlestepping hack
region.

Exclude the global definition of GLOBAL from x86 too.

Signed-off-by: Jiri Slaby <[e-mail]>
Signed-off-by: Borislav Petkov <[e-mail]>
Cc: Andrew Morton <[e-mail]>
Cc: Andrey Ryabinin <[e-mail]>
Cc: Andy Lutomirski <[e-mail]>
Cc: "H. Peter Anvin" <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: [e-mail]
Cc: Mark Rutland <[e-mail]>
Cc: "Rafael J. Wysocki" <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: Will Deacon <[e-mail]>
Cc: x86-ml <[e-mail]>
Link: https://lkml.kernel.org/r/[e-mail]

arch/x86/entry/entry_32.S

···
 	jmp	restore_all
 SYM_CODE_END(ret_from_exception)
 
-GLOBAL(__begin_SYSENTER_singlestep_region)
+SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
 /*
  * All code from here through __end_SYSENTER_singlestep_region is subject
  * to being single-stepped if a user program sets TF and executes SYSENTER.
···
 	pushl	$X86_EFLAGS_FIXED
 	popfl
 	jmp	.Lsysenter_flags_fixed
-GLOBAL(__end_SYSENTER_singlestep_region)
+SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
 ENDPROC(entry_SYSENTER_32)
 
 /*

arch/x86/include/asm/linkage.h

···
 
 #ifdef __ASSEMBLY__
 
-/*
- * GLOBAL is DEPRECATED
- *
- * use SYM_DATA_START, SYM_FUNC_START, SYM_INNER_LABEL, SYM_CODE_START, or
- * similar
- */
-#define GLOBAL(name)	SYM_ENTRY(name, SYM_L_GLOBAL, SYM_A_NONE)
-
 #if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
 #define __ALIGN		.p2align 4, 0x90
 #define __ALIGN_STR	__stringify(__ALIGN)

include/linux/linkage.h

···
 
 /* === DEPRECATED annotations === */
 
+#ifndef CONFIG_X86
 #ifndef GLOBAL
 /* deprecated, use SYM_DATA*, SYM_ENTRY, or similar */
 #define GLOBAL(name) \
 	.globl name ASM_NL \
 	name:
+#endif
 #endif
 
 #ifndef ENTRY