[tip:x86/boot] x86/boot: Remove unused copy_*_gs() functions

[tip-bot for Jiri Slaby]

Commit-ID:  28be1b454c2bb60e317b3135211a378fa2718886
Gitweb:     http://git.kernel.org/tip/28be1b454c2bb60e317b3135211a378fa2718886
Author:     Jiri Slaby <jslaby@xxxxxxx>
AuthorDate: Wed, 31 May 2017 10:12:39 +0200
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 5 Jun 2017 09:35:16 +0200

x86/boot: Remove unused copy_*_gs() functions

copy_from_gs() and copy_to_gs() are unused in the boot code. They have
actually never been used -- they were always commented out since their
addition in 2007:

  5be865661516 ("String-handling functions for the new x86 setup code.")

So remove them -- they can be restored from history if needed.

Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170531081243.5709-1-jslaby@xxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/boot/copy.S | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 1eb7d29..15d9f74 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -65,23 +65,3 @@ GLOBAL(copy_to_fs)
 	popw	%es
 	retl
 ENDPROC(copy_to_fs)
-
-#if 0 /* Not currently used, but can be enabled as needed */
-GLOBAL(copy_from_gs)
-	pushw	%ds
-	pushw	%gs
-	popw	%ds
-	calll	memcpy
-	popw	%ds
-	retl
-ENDPROC(copy_from_gs)
-
-GLOBAL(copy_to_gs)
-	pushw	%es
-	pushw	%gs
-	popw	%es
-	calll	memcpy
-	popw	%es
-	retl
-ENDPROC(copy_to_gs)
-#endif