[Patch v2 06/10] iommu: using dev_get_drvdata directly

[Patch v2 06/10] iommu: using dev_get_drvdata directly

[Fuqian Huang]

Several drivers cast a struct device pointer to a struct
platform_device pointer only to then call platform_get_drvdata().
To improve readability, these constructs can be simplified
by using dev_get_drvdata() directly.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
---
Changes in v2:
  - Make the commit message more clearly.

 drivers/iommu/omap-iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 62f9c61338a5..c638f7795735 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -36,7 +36,7 @@
 static const struct iommu_ops omap_iommu_ops;
 
 #define to_iommu(dev)							\
-	((struct omap_iommu *)platform_get_drvdata(to_platform_device(dev)))
+	((struct omap_iommu *)dev_get_drvdata(dev))
 
 /* bitmap of the page sizes currently supported */
 #define OMAP_IOMMU_PGSIZES	(SZ_4K | SZ_64K | SZ_1M | SZ_16M)
-- 
2.11.0

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Re: [Patch v2 06/10] iommu: using dev_get_drvdata directly

[Joerg Roedel]

On Thu, Jul 04, 2019 at 10:36:20AM +0800, Fuqian Huang wrote:
>  #define to_iommu(dev)							\
> -	((struct omap_iommu *)platform_get_drvdata(to_platform_device(dev)))
> +	((struct omap_iommu *)dev_get_drvdata(dev))

A similar change is already queued for v5.3.
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