Maxime Chevallier 34023ca384 spi: Fix scatterlist elements size in spi_map_buf ...

commit ce99319a18 upstream.

When SPI transfers can be offloaded using DMA, the SPI core need to
build a scatterlist to make sure that the buffer to be transferred is
dma-able.

This patch fixes the scatterlist entry size computation in the case
where the maximum acceptable scatterlist entry supported by the DMA
controller is less than PAGE_SIZE, when the buffer is vmalloced.

For each entry, the actual size is given by the minimum between the
desc_len (which is the max buffer size supported by the DMA controller)
and the remaining buffer length until we cross a page boundary.

Fixes: 65598c13fd ("spi: Fix per-page mapping of unaligned vmalloc-ed buffer")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-04-24 09:34:10 +02:00

..

Kconfig

Revert "spi: bcm-qspi: shut up warning about cfi header inclusion"

2018-04-08 12:13:00 +02:00

Makefile

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spi-adi-v3.c

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spi-altera.c

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spi-ath79.c

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spi-atmel.c

spi: atmel: fixed spin_lock usage inside atmel_spi_remove

2018-03-03 10:23:22 +01:00

spi-au1550.c

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spi-axi-spi-engine.c

spi: spi-axi: fix potential use-after-free after deregistration

2017-12-09 22:01:48 +01:00

spi-bcm53xx.c

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spi-bcm53xx.h

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spi-bcm63xx-hsspi.c

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spi-bcm63xx.c

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spi-bcm2835.c

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spi-bcm2835aux.c

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spi-bcm-qspi.c

spi: bcm-qspi: Fix use after free in bcm_qspi_probe() in error path

2017-11-02 09:49:13 +01:00

spi-bcm-qspi.h

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spi-bfin5xx.c

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spi-bfin-sport.c

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spi-bitbang-txrx.h

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spi-bitbang.c

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spi-brcmstb-qspi.c

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spi-butterfly.c

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spi-cadence.c

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spi-cavium-octeon.c

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spi-cavium-thunderx.c

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spi-cavium.c

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spi-cavium.h

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spi-clps711x.c

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spi-coldfire-qspi.c

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spi-davinci.c

spi: davinci: fix up dma_mapping_error() incorrect patch

2018-04-08 12:13:01 +02:00

spi-dln2.c

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spi-dw-mid.c

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spi-dw-mmio.c

spi: dw: Disable clock after unregistering the host

2018-03-24 11:00:10 +01:00

spi-dw-pci.c

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spi-dw.c

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spi-dw.h

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spi-efm32.c

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spi-ep93xx.c

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spi-falcon.c

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spi-fsl-cpm.c

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spi-fsl-cpm.h

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spi-fsl-dspi.c

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spi-fsl-espi.c

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spi-fsl-lib.c

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spi-fsl-lib.h

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spi-fsl-spi.c

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spi-fsl-spi.h

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spi-gpio.c

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spi-img-spfi.c

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spi-imx.c

spi: imx: do not access registers while clocks disabled

2018-02-03 17:05:43 +01:00

spi-iproc-qspi.c

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spi-jcore.c

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spi-lm70llp.c

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spi-loopback-test.c

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spi-lp8841-rtc.c

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spi-meson-spifc.c

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spi-mpc52xx-psc.c

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spi-mpc52xx.c

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spi-mpc512x-psc.c

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spi-mt65xx.c

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spi-mxs.c

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spi-nuc900.c

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spi-oc-tiny.c

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spi-omap2-mcspi.c

spi: omap2-mcspi: poll OMAP2_MCSPI_CHSTAT_RXS for PIO transfer

2018-03-22 09:17:42 +01:00

spi-omap-100k.c

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spi-omap-uwire.c

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spi-orion.c

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spi-pic32-sqi.c

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spi-pic32.c

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spi-pl022.c

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spi-ppc4xx.c

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spi-pxa2xx-dma.c

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spi-pxa2xx-pci.c

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spi-pxa2xx.c

spi: pxa2xx: Add support for Intel Gemini Lake

2017-10-08 10:26:06 +02:00

spi-pxa2xx.h

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spi-qup.c

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spi-rb4xx.c

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spi-rockchip.c

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spi-rspi.c

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spi-s3c24xx-fiq.h

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spi-s3c24xx-fiq.S

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spi-s3c24xx.c

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spi-s3c64xx.c

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spi-sc18is602.c

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spi-sh-hspi.c

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spi-sh-msiof.c

spi: sh-msiof: Fix DMA transfer size check

2017-12-09 22:01:48 +01:00

spi-sh-sci.c

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spi-sh.c

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spi-sirf.c

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spi-st-ssc4.c

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spi-sun4i.c

spi: sun4i: disable clocks in the remove function

2018-02-25 11:05:49 +01:00

spi-sun6i.c

spi: sun6i: disable/unprepare clocks on remove

2018-03-22 09:17:56 +01:00

spi-tegra20-sflash.c

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spi-tegra20-slink.c

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spi-tegra114.c

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spi-test.h

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spi-ti-qspi.c

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spi-tle62x0.c

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spi-topcliff-pch.c

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spi-txx9.c

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spi-xcomm.c

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spi-xilinx.c

spi: xilinx: Detect stall with Unknown commands

2017-12-29 17:42:59 +01:00

spi-xlp.c

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spi-xtensa-xtfpga.c

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spi-zynqmp-gqspi.c

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spi.c

spi: Fix scatterlist elements size in spi_map_buf

2018-04-24 09:34:10 +02:00

spidev.c

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