linux-kernel - [PATCH 6/8] parisc/dino: use container_of in DINO

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Date:   Mon, 14 Jan 2019 12:23:51 +0100
From:   Christoph Hellwig <hch@....de>
To:     "James E.J. Bottomley" <jejb@...isc-linux.org>,
        Helge Deller <deller@....de>
Cc:     linux-parisc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 6/8] parisc/dino: use container_of in DINO_DEV

Use the type safe container_of macros instead of a blind cast in
DINO_DEV, and turn the macro into an inline function.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 drivers/parisc/dino.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 6f348c75687c..846b59d15999 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -154,12 +154,10 @@ struct dino_device
 #endif
 };
 
-/* Looks nice and keeps the compiler happy */
-#define DINO_DEV(d) ({				\
-	void *__pdata = d;			\
-	BUG_ON(!__pdata);			\
-	(struct dino_device *)__pdata; })
-
+static inline struct dino_device *DINO_DEV(struct pci_hba_data *hba)
+{
+	return container_of(hba, struct dino_device, hba);
+}
 
 /*
  * Dino Configuration Space Accessor Functions
-- 
2.20.1