linux-kernel - [PATCH 2/3] mtd: atmel nand: fix build warning on 64-bit

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Date:   Mon,  9 Jul 2018 17:57:03 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Boris Brezillon <boris.brezillon@...tlin.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Wenyou Yang <wenyou.yang@...rochip.com>,
        Josh Wu <rainyfeeling@...look.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Gregory CLEMENT <gregory.clement@...tlin.com>,
        Peter Rosin <peda@...ntia.se>,
        Romain Izard <romain.izard.pro@...il.com>,
        linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] mtd: atmel nand: fix build warning on 64-bit

Build-testing this driver on a 64-bit architecture produces a
harmless warning:

drivers/mtd/nand/raw/atmel/nand-controller.c: In function 'atmel_smc_nand_controller_init':
drivers/mtd/nand/raw/atmel/nand-controller.c:2053:21: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]

To cast the pointer correctly, the destination type should be
uintptr_t rather than a 32-bit int.

Fixes: c2f3d0b913a5 ("mtd: rawnand: atmel: Allow selection of this driver when COMPILE_TEST=y")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/mtd/nand/raw/atmel/nand-controller.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c
index e686fe73159e..e8f7549d0354 100644
--- a/drivers/mtd/nand/raw/atmel/nand-controller.c
+++ b/drivers/mtd/nand/raw/atmel/nand-controller.c
@@ -2050,7 +2050,7 @@ atmel_smc_nand_controller_init(struct atmel_smc_nand_controller *nc)
 		return ret;
 	}
 
-	nc->ebi_csa_offs = (unsigned int)match->data;
+	nc->ebi_csa_offs = (uintptr_t)match->data;
 
 	/*
 	 * The at91sam9263 has 2 EBIs, if the NAND controller is under EBI1
-- 
2.9.0