linux-kernel - [PATCH 02/15] platform/x86/intel/vsec: Add private data for per-device data

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Message-ID: <20250430212106.369208-3-david.e.box@linux.intel.com>
Date: Wed, 30 Apr 2025 14:20:51 -0700
From: "David E. Box" <david.e.box@...ux.intel.com>
To: linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org,
	david.e.box@...ux.intel.com,
	srinivas.pandruvada@...ux.intel.com,
	andriy.shevchenko@...ux.intel.com,
	ilpo.jarvinen@...ux.intel.com,
	tony.luck@...el.com,
	xi.pardee@...ux.intel.com
Cc: hdegoede@...hat.com
Subject: [PATCH 02/15] platform/x86/intel/vsec: Add private data for per-device data

Introduce a new private structure, struct vsec_priv, to hold a pointer to
the platform-specific information. Although the driver didn’t previously
require this per-device data, adding it now lays the groundwork for
upcoming patches that will manage such data. No functional changes
intended.

Signed-off-by: David E. Box <david.e.box@...ux.intel.com>
---
 drivers/platform/x86/intel/vsec.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c
index 055ca9f48fb4..59fb6568a855 100644
--- a/drivers/platform/x86/intel/vsec.c
+++ b/drivers/platform/x86/intel/vsec.c
@@ -32,6 +32,10 @@ static DEFINE_IDA(intel_vsec_ida);
 static DEFINE_IDA(intel_vsec_sdsi_ida);
 static DEFINE_XARRAY_ALLOC(auxdev_array);
 
+struct vsec_priv {
+	struct intel_vsec_platform_info *info;
+};
+
 static const char *intel_vsec_name(enum intel_vsec_id id)
 {
 	switch (id) {
@@ -348,6 +352,7 @@ EXPORT_SYMBOL_NS_GPL(intel_vsec_register, "INTEL_VSEC");
 static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct intel_vsec_platform_info *info;
+	struct vsec_priv *priv;
 	bool have_devices = false;
 	int ret;
 
@@ -360,6 +365,13 @@ static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_device_id
 	if (!info)
 		return -EINVAL;
 
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->info = info;
+	pci_set_drvdata(pdev, priv);
+
 	if (intel_vsec_walk_dvsec(pdev, info))
 		have_devices = true;
 
-- 
2.43.0