[PATCH] drm/xe: skip building debugfs code for CONFIG_DEBUG_FS=n

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From: Arnd Bergmann <arnd@xxxxxxxx>

Some of the debugfs functions are stubbed out in these configurations,
so trying to build the .c file with the definition fails:

In file included from include/uapi/linux/posix_types.h:5,
                 from drivers/gpu/drm/i915/display/intel_pipe_crc.c:27:
drivers/gpu/drm/i915/display/intel_pipe_crc.c: At top level:
include/linux/stddef.h:8:16: error: expected identifier or '(' before 'void'
    8 | #define NULL ((void *)0)
      |                ^~~~
drivers/gpu/drm/i915/display/intel_pipe_crc.c:549:20: note: in expansion of macro 'intel_crtc_get_crc_sources'
  549 | const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~

Stop trying to build them by making the Makefile entries conditional,
same as for the i915 driver.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/gpu/drm/xe/Makefile | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index efcf0ab7a1a6..7c10ffdb7809 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -213,8 +213,6 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_ddi.o \
 	i915-display/intel_ddi_buf_trans.o \
 	i915-display/intel_display.o \
-	i915-display/intel_display_debugfs.o \
-	i915-display/intel_display_debugfs_params.o \
 	i915-display/intel_display_device.o \
 	i915-display/intel_display_driver.o \
 	i915-display/intel_display_irq.o \
@@ -258,7 +256,6 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/intel_modeset_setup.o \
 	i915-display/intel_modeset_verify.o \
 	i915-display/intel_panel.o \
-	i915-display/intel_pipe_crc.o \
 	i915-display/intel_pmdemand.o \
 	i915-display/intel_pps.o \
 	i915-display/intel_psr.o \
@@ -275,6 +272,13 @@ xe-$(CONFIG_DRM_XE_DISPLAY) += \
 	i915-display/skl_universal_plane.o \
 	i915-display/skl_watermark.o
 
+ifdef CONFIG_DEBUG_FS
+xe-$(CONFIG_DRM_XE_DISPLAY) += \
+	i915-display/intel_display_debugfs.o \
+	i915-display/intel_display_debugfs_params.o \
+	i915-display/intel_pipe_crc.o
+endif
+
 ifeq ($(CONFIG_ACPI),y)
 	xe-$(CONFIG_DRM_XE_DISPLAY) += \
 		i915-display/intel_acpi.o \
-- 
2.39.2




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