platform/x86/intel/vsec: remove platform_info from vsec device structure

In preparation for exporting an API to register Intel Vendor Specific
Extended Capabilities (VSEC) from other drivers, remove the pointer to
platform_info from intel_vsec_device. This prevents a potential page fault
when auxiliary drivers probe and attempt to dereference this pointer to
access the needed quirks field. Instead, just add the quirks to
intel_vsec_device.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231129222132.2331261-5-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Author: debox1

drivers/platform/x86/intel/pmt/class.c

@@ -31,7 +31,7 @@ bool intel_pmt_is_early_client_hw(struct device *dev)
 	 * differences from the server platforms (which use the Out Of Band
 	 * Management Services Module OOBMSM).
 	 */
-	return !!(ivdev->info->quirks & VSEC_QUIRK_EARLY_HW);
+	return !!(ivdev->quirks & VSEC_QUIRK_EARLY_HW);
 }
 EXPORT_SYMBOL_NS_GPL(intel_pmt_is_early_client_hw, INTEL_PMT);
 

drivers/platform/x86/intel/vsec.c

@@ -194,7 +194,7 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he
 	intel_vsec_dev->pcidev = pdev;
 	intel_vsec_dev->resource = res;
 	intel_vsec_dev->num_resources = header->num_entries;
-	intel_vsec_dev->info = info;
+	intel_vsec_dev->quirks = info->quirks;
 
 	if (header->id == VSEC_ID_SDSI)
 		intel_vsec_dev->ida = &intel_vsec_sdsi_ida;

drivers/platform/x86/intel/vsec.h

@@ -79,11 +79,11 @@ struct intel_vsec_device {
 	struct pci_dev *pcidev;
 	struct resource *resource;
 	struct ida *ida;
-	struct intel_vsec_platform_info *info;
 	int num_resources;
 	int id; /* xa */
 	void *priv_data;
 	size_t priv_data_size;
+	unsigned long quirks;
 };
 
 int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,