From: rjui@broadcom•com (Ray Jui)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 1/4] mtd: brcmnand: Fix pointer type-cast in brcmnand_write()
Date: Fri, 16 Oct 2015 08:36:22 -0700 [thread overview]
Message-ID: <56211976.1030401@broadcom.com> (raw)
In-Reply-To: <1444986537-28387-2-git-send-email-anup.patel@broadcom.com>
Correct me if I remember it wrong, but I thought this patch has already
been merged by Brian?
Thanks,
Ray
On 10/16/2015 2:08 AM, Anup Patel wrote:
> 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);
>
next prev parent reply other threads:[~2015-10-16 15:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-16 9:08 [PATCH v2 0/4] NAND support for Broadcom NS2 SoC Anup Patel
2015-10-16 9:08 ` [PATCH v2 1/4] mtd: brcmnand: Fix pointer type-cast in brcmnand_write() Anup Patel
2015-10-16 15:36 ` Ray Jui [this message]
2015-10-16 16:40 ` Brian Norris
2015-10-17 2:52 ` Anup Patel
2015-10-16 9:08 ` [PATCH v2 2/4] mtd: nand: Allow MTD_NAND_BRCMNAND to be selected for ARM64 Anup Patel
2015-10-16 15:36 ` Ray Jui
2015-10-16 16:41 ` Brian Norris
2015-10-16 16:24 ` Arnd Bergmann
2015-10-16 16:54 ` Brian Norris
2015-10-16 19:25 ` Arnd Bergmann
2015-10-16 19:28 ` Florian Fainelli
2015-10-16 19:39 ` Arnd Bergmann
2015-10-16 9:08 ` [PATCH v2 3/4] mtd: brcmnand: Force 8bit mode before doing nand_scan_ident() Anup Patel
2015-10-16 9:08 ` [PATCH v2 4/4] arm64: dts: Add BRCM IPROC NAND DT node for NS2 Anup Patel
2015-10-20 9:05 ` Sudeep Holla
2015-10-20 9:25 ` Anup Patel
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