[PATCH] drm/xe/vsec: enforce CONFIG_INTEL_VSEC dependency

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From: Arnd Bergmann <arnd@xxxxxxxx>

When INTEL_VSEC is in a loadable module, XE cannot be built-in any more:

x86_64-linux-ld: vmlinux.o: in function `xe_vsec_init':
(.text+0x19861bf): undefined reference to `intel_vsec_register'

This could be enforced using a 'depends on INTEL_VSEC || !INTEL_VSEC'
style dependency to allow building with VSEC completely disabled.
My impression here is that this was not actually intended, and that
continuing to support that combination would lead to more build bugs.

Instead, make it a hard dependency as all other INTEL_VSEC users are,
and remove the inline stub alternative. This leads to a dependency
on CONFIG_X86_PLATFORM_DEVICES, so the 'select' has to be removed
to avoid a circular dependency.

Fixes: 0c45e76fcc62 ("drm/xe/vsec: Support BMG devices")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/gpu/drm/xe/Kconfig | 2 +-
 include/linux/intel_vsec.h | 7 -------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/xe/Kconfig b/drivers/gpu/drm/xe/Kconfig
index 6c5b665d9384..217b51468497 100644
--- a/drivers/gpu/drm/xe/Kconfig
+++ b/drivers/gpu/drm/xe/Kconfig
@@ -2,6 +2,7 @@
 config DRM_XE
 	tristate "Intel Xe Graphics"
 	depends on DRM && PCI && MMU && (m || (y && KUNIT=y))
+	depends on INTEL_VSEC
 	select INTERVAL_TREE
 	# we need shmfs for the swappable backing store, and in particular
 	# the shmem_readpage() which depends upon tmpfs
@@ -28,7 +29,6 @@ config DRM_XE
 	select INPUT if ACPI
 	select ACPI_VIDEO if X86 && ACPI
 	select ACPI_BUTTON if ACPI
-	select X86_PLATFORM_DEVICES if X86 && ACPI
 	select ACPI_WMI if X86 && ACPI
 	select SYNC_FILE
 	select IOSF_MBI
diff --git a/include/linux/intel_vsec.h b/include/linux/intel_vsec.h
index b94beab64610..f2d55e686476 100644
--- a/include/linux/intel_vsec.h
+++ b/include/linux/intel_vsec.h
@@ -138,13 +138,6 @@ static inline struct intel_vsec_device *auxdev_to_ivdev(struct auxiliary_device
 	return container_of(auxdev, struct intel_vsec_device, auxdev);
 }
 
-#if IS_ENABLED(CONFIG_INTEL_VSEC)
 void intel_vsec_register(struct pci_dev *pdev,
 			 struct intel_vsec_platform_info *info);
-#else
-static inline void intel_vsec_register(struct pci_dev *pdev,
-				       struct intel_vsec_platform_info *info)
-{
-}
-#endif
 #endif
-- 
2.39.5




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