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From: anup.patel@broadcom.com (Anup Patel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] mtd: brcmnand: Fix pointer type-cast in brcmnand_write()
Date: Fri, 2 Oct 2015 23:26:42 +0530	[thread overview]
Message-ID: <1443808606-21203-2-git-send-email-anup.patel@broadcom.com> (raw)
In-Reply-To: <1443808606-21203-1-git-send-email-anup.patel@broadcom.com>

We should always type-cast pointer to "long" or "unsigned long"
because size of pointer is same as machine word size. This will
avoid pointer type-cast issues on both 32bit and 64bit systems.

This patch fixes pointer type-cast issue in brcmnand_write()
as-per above info.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Reviewed-by: Vikram Prakash <vikramp@broadcom.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
Reviewed-by: Scott Branden <sbranden@broadcom.com>
---
 drivers/mtd/nand/brcmnand/brcmnand.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c
index fddb795..4cba03d 100644
--- a/drivers/mtd/nand/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/brcmnand/brcmnand.c
@@ -1544,9 +1544,9 @@ static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip,
 
 	dev_dbg(ctrl->dev, "write %llx <- %p\n", (unsigned long long)addr, buf);
 
-	if (unlikely((u32)buf & 0x03)) {
+	if (unlikely((unsigned long)buf & 0x03)) {
 		dev_warn(ctrl->dev, "unaligned buffer: %p\n", buf);
-		buf = (u32 *)((u32)buf & ~0x03);
+		buf = (u32 *)((unsigned long)buf & ~0x03);
 	}
 
 	brcmnand_wp(mtd, 0);
-- 
1.9.1

  reply	other threads:[~2015-10-02 17:56 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-02 17:56 [PATCH 0/5] NAND support for Broadcom NS2 SoC Anup Patel
2015-10-02 17:56 ` Anup Patel [this message]
2015-10-12 21:20   ` [PATCH 1/5] mtd: brcmnand: Fix pointer type-cast in brcmnand_write() Brian Norris
2015-10-02 17:56 ` [PATCH 2/5] mtd: nand: Allow MTD_NAND_BRCMNAND to be selected for ARM64 Anup Patel
2015-10-12 21:20   ` Brian Norris
2015-10-02 17:56 ` [PATCH 3/5] mtd: brcmnand: Optional DT flag to reset IPROC NAND controller Anup Patel
2015-10-04 21:49   ` Brian Norris
2015-10-05  6:27     ` Anup Patel
2015-10-06 13:41       ` Brian Norris
2015-10-06 22:25         ` Scott Branden
2015-10-06 23:20           ` Florian Fainelli
2015-10-07  3:33             ` Anup Patel
2015-10-12 21:27               ` Brian Norris
2015-10-16  6:46                 ` Anup Patel
2015-10-12 21:54               ` Josh Cartwright
2015-10-13 17:35                 ` Florian Fainelli
2015-10-02 17:56 ` [PATCH 4/5] Documentation: dt-bindings: Add info about brcm, nand-iproc-reset DT flag Anup Patel
2015-10-02 17:56 ` [PATCH 5/5] arm64: dts: Add BRCM IPROC NAND DT node for NS2 Anup Patel

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