linux-kernel - Re: [PATCH v3 10/32] mtd: spi-nor: Pointer parameter for CR in spi_nor_read

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Date:   Thu, 31 Oct 2019 11:58:56 +0100
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     <Tudor.Ambarus@...rochip.com>
Cc:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 10/32] mtd: spi-nor: Pointer parameter for CR in
 spi_nor_read_cr()

On Tue, 29 Oct 2019 11:17:04 +0000
<Tudor.Ambarus@...rochip.com> wrote:

> From: Tudor Ambarus <tudor.ambarus@...rochip.com>
> 
> Let the callers pass the pointer to the DMA-able buffer where
> the value of the Configuration Register will be written. This way we
> avoid the casts between int and u8, which can be confusing.
> 
> Callers stop compare the return value of spi_nor_read_cr() with negative,
> spi_nor_read_cr() returns 0 on success and -errno otherwise.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...rochip.com>

Reviewed-by: Boris Brezillon <boris.brezillon@...labora.com>

There's just this &nor->bouncebuf[0] that I'd prefer to be turned into
nor->bouncebuf if you're okay.