[PATCH] soc/tegra: fuse: Explicitly cast to/from __iomem

From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Jon Hunter <jonathanh@nvidia.com>,
	Dmitry Osipenko <digetx@gmail.com>,
	linux-tegra@vger.kernel.org, kernel test robot <lkp@intel.com>
Subject: [PATCH] soc/tegra: fuse: Explicitly cast to/from __iomem
Date: Thu, 24 Feb 2022 13:27:28 +0100	[thread overview]
Message-ID: <20220224122728.459608-1-thierry.reding@gmail.com> (raw)

From: Thierry Reding <treding@nvidia.com>

sparse is picky about casts between different address spaces. A cast to
plain void * needs to be accompanied by a __force modifier and casting
back to void __iomem * needs to be explicit to avoid warnings.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 88724b78a84c ("soc/tegra: fuse: Use resource-managed helpers")
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/soc/tegra/fuse/fuse-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index 10d2ae99babd..aa94fda282f4 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -202,8 +202,8 @@ static const struct nvmem_cell_info tegra_fuse_cells[] = {
 
 static void tegra_fuse_restore(void *base)
 {
+	fuse->base = (void __iomem *)base;
 	fuse->clk = NULL;
-	fuse->base = base;
 }
 
 static int tegra_fuse_probe(struct platform_device *pdev)
@@ -213,7 +213,7 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 	struct resource *res;
 	int err;
 
-	err = devm_add_action(&pdev->dev, tegra_fuse_restore, base);
+	err = devm_add_action(&pdev->dev, tegra_fuse_restore, (void __force *)base);
 	if (err)
 		return err;
 
-- 
2.35.1

