From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf0-x232.google.com ([2607:f8b0:400e:c00::232]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ayThZ-0006VJ-7X for linux-mtd@lists.infradead.org; Fri, 06 May 2016 00:33:05 +0000 Received: by mail-pf0-x232.google.com with SMTP id 206so43417669pfu.0 for ; Thu, 05 May 2016 17:32:44 -0700 (PDT) From: Brian Norris To: Cc: Heiner Kallweit , Brian Norris , Han Xu , Michal Suchanek , Boris Brezillon , Javier Martinez Canillas , Rafal Milecki , Jagan Teki , "Andrew F. Davis" , Mika Westerberg , Gabor Juhos , Bean Huo , linux-kernel@vger.kernel.org, Bayi Cheng , Joachim Eastwood , Cyrille Pitchen Subject: [PATCH v7 10/10] mtd: m25p80: read in spi_max_transfer_size chunks Date: Thu, 5 May 2016 17:31:56 -0700 Message-Id: <1462494716-95312-11-git-send-email-computersforpeace@gmail.com> In-Reply-To: <1462494716-95312-1-git-send-email-computersforpeace@gmail.com> References: <1462494716-95312-1-git-send-email-computersforpeace@gmail.com> List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Michal Suchanek Take into account transfer size limitation of SPI master. Signed-off-by: Michal Suchanek Signed-off-by: Brian Norris --- 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