linux-kernel - [PATCH] ARM: sa1100: make match function take a const pointer

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Message-ID: <20240712093916.2121096-2-gregkh@linuxfoundation.org>
Date: Fri, 12 Jul 2024 11:39:17 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Russell King <linux@...linux.org.uk>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH] ARM: sa1100: make match function take a const pointer

In commit d69d80484598 ("driver core: have match() callback in struct
bus_type take a const *"), the match callback for busses was changed to
take a const pointer to struct device_driver.  Unfortunately I missed
fixing up the sa1111 code, and was only noticed after-the-fact by the
kernel test robot.  Resolve this issue by properly changing the
sa111_match() function.

Cc: Russell King <linux@...linux.org.uk>
Fixes: d69d80484598 ("driver core: have match() callback in struct bus_type take a const *")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm/common/sa1111.c               | 4 ++--
 arch/arm/include/asm/hardware/sa1111.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 1fbd7363cf11..550978dc3c50 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -1339,10 +1339,10 @@ EXPORT_SYMBOL_GPL(sa1111_get_irq);
  *	We model this as a regular bus type, and hang devices directly
  *	off this.
  */
-static int sa1111_match(struct device *_dev, struct device_driver *_drv)
+static int sa1111_match(struct device *_dev, const struct device_driver *_drv)
 {
 	struct sa1111_dev *dev = to_sa1111_device(_dev);
-	struct sa1111_driver *drv = SA1111_DRV(_drv);
+	const struct sa1111_driver *drv = SA1111_DRV(_drv);
 
 	return !!(dev->devid & drv->devid);
 }
diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h
index d8c6f8a99dfa..a815f39b4243 100644
--- a/arch/arm/include/asm/hardware/sa1111.h
+++ b/arch/arm/include/asm/hardware/sa1111.h
@@ -404,7 +404,7 @@ struct sa1111_driver {
 	void (*remove)(struct sa1111_dev *);
 };
 
-#define SA1111_DRV(_d)	container_of((_d), struct sa1111_driver, drv)
+#define SA1111_DRV(_d)	container_of_const((_d), struct sa1111_driver, drv)
 
 #define SA1111_DRIVER_NAME(_sadev) ((_sadev)->dev.driver->name)
 
-- 
2.45.2