linux-kernel - [PATCH 3/7] intel_th: Constify all drvdata references

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Message-Id: <20210414171251.14672-4-alexander.shishkin@linux.intel.com>
Date:   Wed, 14 Apr 2021 20:12:47 +0300
From:   Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH 3/7] intel_th: Constify all drvdata references

Anything that deals with drvdata structures should leave them intact.
Reflect this in function signatures.

Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/hwtracing/intel_th/core.c     | 2 +-
 drivers/hwtracing/intel_th/intel_th.h | 6 +++---
 drivers/hwtracing/intel_th/pci.c      | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index c9ac3dc65113..24d0c974bfd5 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -844,7 +844,7 @@ static irqreturn_t intel_th_irq(int irq, void *data)
  * @irq:	irq number
  */
 struct intel_th *
-intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
+intel_th_alloc(struct device *dev, const struct intel_th_drvdata *drvdata,
 	       struct resource *devres, unsigned int ndevres)
 {
 	int err, r, nr_mmios = 0;
diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h
index 5fe694708b7a..05fa2dab37d1 100644
--- a/drivers/hwtracing/intel_th/intel_th.h
+++ b/drivers/hwtracing/intel_th/intel_th.h
@@ -74,7 +74,7 @@ struct intel_th_drvdata {
  */
 struct intel_th_device {
 	struct device		dev;
-	struct intel_th_drvdata *drvdata;
+	const struct intel_th_drvdata *drvdata;
 	struct resource		*resource;
 	unsigned int		num_resources;
 	unsigned int		type;
@@ -224,7 +224,7 @@ static inline struct intel_th *to_intel_th(struct intel_th_device *thdev)
 }
 
 struct intel_th *
-intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata,
+intel_th_alloc(struct device *dev, const struct intel_th_drvdata *drvdata,
 	       struct resource *devres, unsigned int ndevres);
 void intel_th_free(struct intel_th *th);
 
@@ -272,7 +272,7 @@ struct intel_th {
 
 	struct intel_th_device	*thdev[TH_SUBDEVICE_MAX];
 	struct intel_th_device	*hub;
-	struct intel_th_drvdata	*drvdata;
+	const struct intel_th_drvdata	*drvdata;
 
 	struct resource		resource[TH_MMIO_END];
 	int			(*activate)(struct intel_th *);
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 251e75c9ba9d..759994055cb4 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -71,7 +71,7 @@ static void intel_th_pci_deactivate(struct intel_th *th)
 static int intel_th_pci_probe(struct pci_dev *pdev,
 			      const struct pci_device_id *id)
 {
-	struct intel_th_drvdata *drvdata = (void *)id->driver_data;
+	const struct intel_th_drvdata *drvdata = (void *)id->driver_data;
 	struct resource resource[TH_MMIO_END + TH_NVEC_MAX] = {
 		[TH_MMIO_CONFIG]	= pdev->resource[TH_PCI_CONFIG_BAR],
 		[TH_MMIO_SW]		= pdev->resource[TH_PCI_STH_SW_BAR],
-- 
2.30.2