linux-kernel - [PATCH] amba: move to_amba_device() to use container_of

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Message-Id: <20230426144124.19270-1-prathubaronia2011@gmail.com>
Date:   Wed, 26 Apr 2023 20:11:23 +0530
From:   Prathu Baronia <prathubaronia2011@...il.com>
To:     Russell King <linux@...linux.org.uk>,
        Isaac Manjarres <isaacmanjarres@...gle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Robin Murphy <robin.murphy@....com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Prathu Baronia <prathubaronia2011@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] amba: move to_amba_device() to use container_of_const

to_amba_device() now properly keeps the const-ness of the dev pointer
passed into it, while as before it could be lost.

Signed-off-by: Prathu Baronia <prathubaronia2011@...il.com>
---
 include/linux/amba/bus.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 5001e14c5c06..c60a6a14638c 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -107,7 +107,7 @@ enum amba_vendor {
 
 extern struct bus_type amba_bustype;
 
-#define to_amba_device(d)	container_of(d, struct amba_device, dev)
+#define to_amba_device(d)	container_of_const(d, struct amba_device, dev)
 
 #define amba_get_drvdata(d)	dev_get_drvdata(&d->dev)
 #define amba_set_drvdata(d,p)	dev_set_drvdata(&d->dev, p)
-- 
2.25.1