From: Brian Norris <computersforpeace@gmail.com>
To: <linux-mtd@lists.infradead.org>
Cc: Heiner Kallweit <hkallweit1@gmail.com>,
Brian Norris <computersforpeace@gmail.com>,
Han Xu <han.xu@nxp.com>, Michal Suchanek <hramrach@gmail.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Javier Martinez Canillas <javier@osg.samsung.com>,
Rafal Milecki <zajec5@gmail.com>, Jagan Teki <jteki@openedev.com>,
"Andrew F. Davis" <afd@ti.com>,
Mika Westerberg <mika.westerberg@linux.intel.com>,
Gabor Juhos <juhosg@openwrt.org>, Bean Huo <beanhuo@micron.com>,
linux-kernel@vger.kernel.org,
Bayi Cheng <bayi.cheng@mediatek.com>,
Joachim Eastwood <manabian@gmail.com>,
Cyrille Pitchen <cyrille.pitchen@atmel.com>
Subject: [PATCH v7 10/10] mtd: m25p80: read in spi_max_transfer_size chunks
Date: Thu, 5 May 2016 17:31:56 -0700 [thread overview]
Message-ID: <1462494716-95312-11-git-send-email-computersforpeace@gmail.com> (raw)
In-Reply-To: <1462494716-95312-1-git-send-email-computersforpeace@gmail.com>
From: Michal Suchanek <hramrach@gmail.com>
Take into account transfer size limitation of SPI master.
Signed-off-by: Michal Suchanek <hramrach@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
v6 -> v7:
* use min() instead of min_t()
drivers/mtd/devices/m25p80.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index eab46d211ae6..9cf7fcd28034 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -172,7 +172,7 @@ static ssize_t m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
t[1].rx_buf = buf;
t[1].rx_nbits = m25p80_rx_nbits(nor);
- t[1].len = len;
+ t[1].len = min(len, spi_max_transfer_size(spi));
spi_message_add_tail(&t[1], &m);
ret = spi_sync(spi, &m);
--
2.8.0.rc3.226.g39d4020
next prev parent reply other threads:[~2016-05-06 0:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-06 0:31 [PATCH v7 00/10] Add error checking to spi-nor read and write Brian Norris
2016-05-06 0:31 ` [PATCH v7 01/10] mtd: spi-nor: change return value of read/write Brian Norris
2016-05-06 0:31 ` [PATCH v7 02/10] mtd: m25p80: return amount of data transferred or error in read/write Brian Norris
2016-05-06 0:31 ` [PATCH v7 03/10] mtd: fsl-quadspi: return amount of data read/written or error Brian Norris
2016-05-06 0:31 ` [PATCH v7 04/10] mtd: mtk-quadspi: return amount of data transferred or error in read/write Brian Norris
2016-05-06 0:31 ` [PATCH v7 05/10] mtd: nxp-spifi: " Brian Norris
2016-05-06 0:31 ` [PATCH v7 06/10] mtd: spi-nor: check return value from write Brian Norris
2016-05-06 0:31 ` [PATCH v7 07/10] mtd: spi-nor: stop passing around retlen Brian Norris
2016-05-06 0:31 ` [PATCH v7 08/10] mtd: spi-nor: simplify write loop Brian Norris
2016-05-06 0:31 ` [PATCH v7 09/10] mtd: spi-nor: add read loop Brian Norris
2016-05-06 0:31 ` Brian Norris [this message]
2016-05-16 19:47 ` [PATCH v7 00/10] Add error checking to spi-nor read and write Michal Suchanek
2016-05-18 1:24 ` Brian Norris
2016-05-26 20:12 ` Michal Suchanek
2016-05-23 16:08 ` Cyrille Pitchen
2016-06-02 0:26 ` Brian Norris
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