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From: Christian Breunig <christian@breunig.cc>
Subject: [PATCH] qat: map EXTRA_CFLAGS into ccflags-y for Linux 6.x kbuild
Linux kbuild no longer applies EXTRA_CFLAGS for out-of-tree module builds the
way older kernels did. Intel QAT's build system still funnels include paths and
defines through EXTRA_CFLAGS (via env_files/linux_2.6_kernel_space.mk), which
results in missing vendor headers (qae_mem.h, Osal.h, etc.) when building
against newer kernels.
Mirror EXTRA_CFLAGS into ccflags-y after including OS-specific rules so the
flags reach the compiler.
--- a/quickassist/build_system/build_files/rules.mk
+++ b/quickassist/build_system/build_files/rules.mk
@@ -121,3 +121,11 @@
#include specific rules according to $(PROG_ACY)_OS and $(PROG_ACY)_OS_LEVEL
include $($(PROG_ACY)_BUILDSYSTEM_PATH)/build_files/OS/$($(PROG_ACY)_OS)_$($(PROG_ACY)_OS_LEVEL)_rules.mk
+
+# Linux kbuild (v6.x+) no longer honors EXTRA_CFLAGS for out-of-tree modules.
+# Intel QAT historically routes include paths and defines through EXTRA_CFLAGS via
+# env_files/linux_2.6_kernel_space.mk. Mirror those flags into ccflags-y so they
+# actually reach the compiler when invoking the kernel build system.
+ifdef KERNELRELEASE
+ccflags-y += $(EXTRA_CFLAGS)
+endif
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