hardened-kernel-5.4.48: delete 9123_0123-zero-extra-registers.patch

sys-kernel/hardened-kernel/files/linux-5.4/9123_0123-zero-extra-registers.patch

@@ -1,26 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Arjan van de Ven <arjan@linux.intel.com>
-Date: Thu, 8 Feb 2018 16:49:38 +0000
-Subject: [PATCH] zero extra registers
-
-This for Zero used caller-saved general registers upon function return.
----
- arch/x86/Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/arch/x86/Makefile b/arch/x86/Makefile
-index 94df0868804b..083a97af538c 100644
---- a/arch/x86/Makefile
-+++ b/arch/x86/Makefile
-@@ -216,7 +216,7 @@ KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
- 
- # Avoid indirect branches in kernel to deal with Spectre
- ifdef CONFIG_RETPOLINE
--  KBUILD_CFLAGS += $(RETPOLINE_CFLAGS)
-+  KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) -mzero-caller-saved-regs=used
-   # Additionally, avoid generating expensive indirect jumps which
-   # are subject to retpolines for small number of switch cases.
-   # clang turns off jump table generation by default when under
--- 
-https://clearlinux.org
-