From: Christian Breunig <christian@breunig.cc>
Subject: [PATCH] libusdm_drv: fix EXTRA_CFLAGS include handling for kernel builds

The kernel Makefile incorrectly concatenates "-I" with $(INCLUDES), but
$(INCLUDES) already contains "-I..." entries from linux_2.6_kernel_space.mk.

That yields broken compiler arguments like "-I-I/path/...", which breaks header
lookup on newer GCC (observed as missing qae_mem.h / Osal.h during out-of-tree
module builds against Linux 6.18).

--- a/quickassist/utilities/libusdm_drv/linux/Makefile
+++ b/quickassist/utilities/libusdm_drv/linux/Makefile
@@ -187,7 +187,9 @@ export OUTPUT_NAME
 #kernel space rules here 
 #produce two artefacts: module and static library and copy them
 ifeq ($(OS),linux)
-EXTRA_CFLAGS+=-I$(INCLUDES) -Werror -ftree-ter
+# INCLUDES already contains "-I..." entries (see env_files/linux_2.6_kernel_space.mk).
+# Prefixing with "-I" again breaks header lookup on newer toolchains (GCC 14+).
+EXTRA_CFLAGS+=$(INCLUDES) -Werror -ftree-ter
 obj-m+=$(OUTPUT_NAME).o
 $(OUTPUT_NAME)-objs :=$(patsubst %.c,%.o, $(MODULE_SOURCES)) $(ADDITIONAL_KERNEL_LIBS)
 lib-m := $(patsubst %.c,%.o, $(SOURCES)) $(patsubst %.S,%.o, $(ASM_SOURCES))