release 6.15.2 (preliminary)

debian/patches/patchset-zen/sauce/0003-ZEN-Disable-stack-conservation-for-GCC.patch

@@ -0,0 +1,29 @@
+From 490a2fd553b92e5ad5f151994a9bbf953cc000f7 Mon Sep 17 00:00:00 2001
+From: Sultan Alsawaf <sultan@kerneltoast.com>
+Date: Sun, 8 Mar 2020 00:31:35 -0800
+Subject: ZEN: Disable stack conservation for GCC
+
+There's plenty of room on the stack for a few more inlined bytes here
+and there. The measured stack usage at runtime is still safe without
+this, and performance is surely improved at a microscopic level, so
+remove it.
+
+Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
+---
+ Makefile | 5 -----
+ 1 file changed, 5 deletions(-)
+
+--- a/Makefile
++++ b/Makefile
+@@ -1076,11 +1076,6 @@ KBUILD_CFLAGS	+= -fno-strict-overflow
+ # Make sure -fstack-check isn't enabled (like gentoo apparently did)
+ KBUILD_CFLAGS  += -fno-stack-check
+ 
+-# conserve stack if available
+-ifdef CONFIG_CC_IS_GCC
+-KBUILD_CFLAGS   += -fconserve-stack
+-endif
+-
+ # Ensure compilers do not transform certain loops into calls to wcslen()
+ KBUILD_CFLAGS += -fno-builtin-wcslen
+