linux-kernel - [PATCH v2 5/5] device property: Constify parameter in device_dma_supported() and device_get_dma

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Date:   Wed, 28 Sep 2022 13:57:46 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Prashant Malani <pmalani@...omium.org>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org
Cc:     Daniel Scally <djrscally@...il.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: [PATCH v2 5/5] device property: Constify parameter in device_dma_supported() and device_get_dma_attr()

Constify parameter in device_dma_supported() and device_get_dma_attr()
since they don't alter anything related to it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---
 drivers/base/property.c  | 10 +++++-----
 include/linux/property.h |  5 ++---
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/base/property.c b/drivers/base/property.c
index 04eb5e0ab407..5b0417f7e561 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -871,18 +871,18 @@ unsigned int device_get_child_node_count(const struct device *dev)
 }
 EXPORT_SYMBOL_GPL(device_get_child_node_count);
 
-bool device_dma_supported(struct device *dev)
+bool device_dma_supported(const struct device *dev)
 {
-	return fwnode_call_bool_op(dev_fwnode(dev), device_dma_supported);
+	return fwnode_call_bool_op(dev_fwnode_const(dev), device_dma_supported);
 }
 EXPORT_SYMBOL_GPL(device_dma_supported);
 
-enum dev_dma_attr device_get_dma_attr(struct device *dev)
+enum dev_dma_attr device_get_dma_attr(const struct device *dev)
 {
-	if (!fwnode_has_op(dev_fwnode(dev), device_get_dma_attr))
+	if (!fwnode_has_op(dev_fwnode_const(dev), device_get_dma_attr))
 		return DEV_DMA_NOT_SUPPORTED;
 
-	return fwnode_call_int_op(dev_fwnode(dev), device_get_dma_attr);
+	return fwnode_call_int_op(dev_fwnode_const(dev), device_get_dma_attr);
 }
 EXPORT_SYMBOL_GPL(device_get_dma_attr);
 
diff --git a/include/linux/property.h b/include/linux/property.h
index 31dd6cbea9b0..a9498757155d 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -384,9 +384,8 @@ property_entries_dup(const struct property_entry *properties);
 
 void property_entries_free(const struct property_entry *properties);
 
-bool device_dma_supported(struct device *dev);
-
-enum dev_dma_attr device_get_dma_attr(struct device *dev);
+bool device_dma_supported(const struct device *dev);
+enum dev_dma_attr device_get_dma_attr(const struct device *dev);
 
 const void *device_get_match_data(const struct device *dev);
 
-- 
2.35.1