linux-kernel - Re: [PATCH] mtd: rawnand: omap_elm: Fix incorrect type in assignment

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Message-Id: <20230712140912.284188-1-miquel.raynal@bootlin.com>
Date:   Wed, 12 Jul 2023 16:09:12 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Roger Quadros <rogerq@...nel.org>, miquel.raynal@...tlin.com,
        richard@....at, vigneshr@...com
Cc:     krzk@...nel.org, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH] mtd: rawnand: omap_elm: Fix incorrect type in assignment

On Sat, 2023-06-24 at 18:40:21 UTC, Roger Quadros wrote:
> Once the ECC word endianness is converted to BE32, we force cast it
> to u32 so we can use elm_write_reg() which in turn uses writel().
> 
> Fixes below sparse warnings:
> 
>    drivers/mtd/nand/raw/omap_elm.c:180:37: sparse:     expected unsigned int [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:180:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:185:37: sparse:     expected unsigned int [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:185:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:190:37: sparse:     expected unsigned int [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:190:37: sparse:     got restricted __be32 [usertype]
> >> drivers/mtd/nand/raw/omap_elm.c:200:40: sparse: sparse: restricted __be32 degrades to integer
>    drivers/mtd/nand/raw/omap_elm.c:206:39: sparse: sparse: restricted __be32 degrades to integer
>    drivers/mtd/nand/raw/omap_elm.c:210:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:210:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:213:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:213:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:216:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:216:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:219:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:219:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:222:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:222:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:225:37: sparse:     expected unsigned int [assigned] [usertype] val
>    drivers/mtd/nand/raw/omap_elm.c:225:37: sparse:     got restricted __be32 [usertype]
>    drivers/mtd/nand/raw/omap_elm.c:228:39: sparse: sparse: restricted __be32 degrades to integer
> 
> Fixes: bf22433575ef ("mtd: devices: elm: Add support for ELM error correction")
> Reported-by: kernel test robot <lkp@...el.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202306212211.WDXokuWh-lkp@intel.com/
> Signed-off-by: Roger Quadros <rogerq@...nel.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks.

Miquel