[PATCH 6.1.y 3/4] platform/x86/intel/vsec: Make driver_data info const

[Sasha Levin <sashal@kernel.org>]

From: "David E. Box" <david.e.box@linux.intel.com>

[ Upstream commit 9577c74c96f88d807d1ba005adbf5952e7127e55 ]

Treat PCI id->driver_data (intel_vsec_platform_info) as read-only by making
vsec_priv->info a const pointer and updating all function signatures to
accept const intel_vsec_platform_info *.

This improves const-correctness and clarifies that the platform info data
from the driver_data table is not meant to be modified at runtime.

No functional changes intended.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://patch.msgid.link/20260313015202.3660072-3-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Stable-dep-of: 348ccc754d89 ("platform/x86/intel/vsec: Fix enable_cnt imbalance on PCIe error recovery")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel/vsec.c | 16 ++++++++--------
 drivers/platform/x86/intel/vsec.h |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c
index e31e5db593401..9f537df15d3d4 100644
--- a/drivers/platform/x86/intel/vsec.c
+++ b/drivers/platform/x86/intel/vsec.c
@@ -74,7 +74,7 @@ static enum intel_vsec_id intel_vsec_allow_list[] = {
 };
 
 struct vsec_priv {
-	struct intel_vsec_platform_info *info;
+	const struct intel_vsec_platform_info *info;
 };
 
 static const char *intel_vsec_name(enum intel_vsec_id id)
@@ -203,7 +203,7 @@ int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
 EXPORT_SYMBOL_NS_GPL(intel_vsec_add_aux, INTEL_VSEC);
 
 static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *header,
-			      struct intel_vsec_platform_info *info)
+			      const struct intel_vsec_platform_info *info)
 {
 	struct intel_vsec_device *intel_vsec_dev;
 	struct resource *res, *tmp;
@@ -263,7 +263,7 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he
 }
 
 static bool intel_vsec_walk_header(struct pci_dev *pdev,
-				   struct intel_vsec_platform_info *info)
+				   const struct intel_vsec_platform_info *info)
 {
 	struct intel_vsec_header **header = info->capabilities;
 	bool have_devices = false;
@@ -282,7 +282,7 @@ static bool intel_vsec_walk_header(struct pci_dev *pdev,
 }
 
 static bool intel_vsec_walk_dvsec(struct pci_dev *pdev,
-				  struct intel_vsec_platform_info *info)
+				  const struct intel_vsec_platform_info *info)
 {
 	bool have_devices = false;
 	int pos = 0;
@@ -332,7 +332,7 @@ static bool intel_vsec_walk_dvsec(struct pci_dev *pdev,
 }
 
 static bool intel_vsec_walk_vsec(struct pci_dev *pdev,
-				 struct intel_vsec_platform_info *info)
+				 const struct intel_vsec_platform_info *info)
 {
 	bool have_devices = false;
 	int pos = 0;
@@ -377,7 +377,7 @@ static bool intel_vsec_walk_vsec(struct pci_dev *pdev,
 }
 
 static bool intel_vsec_get_features(struct pci_dev *pdev,
-				    struct intel_vsec_platform_info *info)
+				    const struct intel_vsec_platform_info *info)
 {
 	bool found = false;
 
@@ -403,7 +403,7 @@ static bool intel_vsec_get_features(struct pci_dev *pdev,
 
 static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	struct intel_vsec_platform_info *info;
+	const struct intel_vsec_platform_info *info;
 	struct vsec_priv *priv;
 	int ret;
 
@@ -412,7 +412,7 @@ static int intel_vsec_pci_probe(struct pci_dev *pdev, const struct pci_device_id
 		return ret;
 
 	pci_save_state(pdev);
-	info = (struct intel_vsec_platform_info *)id->driver_data;
+	info = (const struct intel_vsec_platform_info *)id->driver_data;
 	if (!info)
 		return -EINVAL;
 
diff --git a/drivers/platform/x86/intel/vsec.h b/drivers/platform/x86/intel/vsec.h
index 330672588868d..7c807d58ff27c 100644
--- a/drivers/platform/x86/intel/vsec.h
+++ b/drivers/platform/x86/intel/vsec.h
@@ -36,7 +36,7 @@ struct intel_vsec_device {
 	struct pci_dev *pcidev;
 	struct resource *resource;
 	struct ida *ida;
-	struct intel_vsec_platform_info *info;
+	const struct intel_vsec_platform_info *info;
 	int num_resources;
 	int id; /* xa */
 	void *priv_data;
-- 
2.53.0