From: Christian Breunig <christian@breunig.cc>
Subject: [PATCH] lac: mirror EXTRA_CFLAGS into ccflags-y for kernel_space builds

Lookaside Crypto access_layer skips rules.mk when ICP_OS_LEVEL is kernel_space.
Linux 6.x kbuild ignores EXTRA_CFLAGS for external modules, so compilation of
linux/icp_qa_module.c fails to find headers such as cpa.h.

Mirror EXTRA_CFLAGS into ccflags-y for kernel-space builds before pulling in
Core/OS fragments.

--- a/quickassist/lookaside/access_layer/src/Makefile
+++ b/quickassist/lookaside/access_layer/src/Makefile
@@ -227,6 +227,14 @@
 include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk
 endif
 
+# Kernel-space builds skip rules.mk above. Linux 6.x kbuild ignores EXTRA_CFLAGS for
+# external modules; mirror flags into ccflags-y so headers like cpa.h resolve.
+ifeq ($(ICP_OS_LEVEL),kernel_space)
+ifdef KERNELRELEASE
+ccflags-y += $(EXTRA_CFLAGS)
+endif
+endif
+
 include $(ICP_BUILDSYSTEM_PATH)/build_files/Core/$(ICP_CORE).mk
 include $(ICP_BUILDSYSTEM_PATH)/build_files/OS/$(ICP_OS).mk