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2016-08-08dmaengine: sh_shdma-base: convert callback to helper functionDave Jiang1-6/+6
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmengine: xilinx_dma: convert callback to helper functionVinod Koul1-6/+4
Move the xilinx driver to new dmaengine callback Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: documentation to the new callback mechanismDave Jiang1-0/+11
Adding documentation in dmaengine/provider.txt on the usage of callback with result, callback_result, function pointer to retrieve transanction result from a DMA submission. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08ntb: add DMA error handling for RX DMADave Jiang1-16/+67
Adding support on the rx DMA path to allow recovery of errors when DMA responds with error status and abort all the subsequent ops. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Allen Hubbe <Allen.Hubbe@emc.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: linux-ntb@googlegroups.com Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08ntb: add DMA error handling for TX DMADave Jiang1-27/+83
Adding support on the tx DMA path to allow recovery of errors when DMA responds with error status and abort all the subsequent ops. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Allen Hubbe <Allen.Hubbe@emc.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: linux-ntb@googlegroups.com Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: add error strings to chanerr outputDave Jiang1-4/+61
Provide a mechanism to translate CHANERR bits to English strings in order to allow user to report more concise errors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: Add error handling to ioat driverDave Jiang2-16/+126
Adding error handling to the ioatdma driver so that when a read/write error occurs the error results are reported back and all the remaining descriptors are aborted. This utilizes the new dmaengine callback function that allows reporting of results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: add support to provide error result from a DMA transationDave Jiang2-5/+33
Adding a new callback that will provide the error result for a transaction. The result is allocated on the stack and the callback should create a copy if it wishes to retain the information after exiting. The result parameter is now defined and takes over the dummy void pointer we placed in the helper functions previously. dmaengine drivers should start converting to the new "callback_result" callback in order to receive transaction results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: xgene-dma: convert callback to helper functionDave Jiang1-2/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: virt-dma: convert callback to helper functionDave Jiang1-10/+7
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: txx9dmac: convert callback to helper functionDave Jiang1-6/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: timb_dma: convert callback to helper functionDave Jiang1-6/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: tegra20-apb-dma: convert callback to helper functionDave Jiang1-6/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ste_dma40: convert callback to helper functionDave Jiang1-6/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: sirf-dma: convert callback to helper functionDave Jiang1-5/+2
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: sh_rcar-dmac: convert callback to helper functionDave Jiang1-9/+7
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: qcom_hidma: convert callback to helper functionDave Jiang1-8/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ppc4xx_adma: convert callback to helper functionDave Jiang1-4/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: pl330: convert callback to helper functionDave Jiang1-6/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: pch_dma: convert callback to helper functionDave Jiang1-4/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: nbpfaxi: convert callback to helper functionDave Jiang1-6/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mxs-dma: convert callback to helper functionDave Jiang1-2/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mv_xor: convert callback to helper functionDave Jiang1-4/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mpc512x_dma: convert callback to helper functionDave Jiang1-2/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mmp_tdma: convert callback to helper functionDave Jiang1-3/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mmp_pdma: convert callback to helper functionDave Jiang1-9/+5
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: mic_x100_dma: convert callback to helper functionDave Jiang1-4/+2
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ipu: convert callback to helper functionDave Jiang1-10/+8
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: iop-adma: convert callback to helper functionDave Jiang1-2/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: convert callback to helper functionDave Jiang1-8/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: imx-sdma: convert callback to helper functionDave Jiang1-4/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: imx-dma: convert callback to helper functionDave Jiang1-3/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: fsldma: convert callback to helper functionDave Jiang1-5/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Li Yang <leoli@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: fsl_raid: convert callback to helper functionDave Jiang1-9/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ep93xx_dma: convert callback to helper functionDave Jiang1-6/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: dw: convert callback to helper functionDave Jiang1-8/+6
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Viresh Kumar <vireshk@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: cppi41: convert callback to helper functionDave Jiang1-1/+1
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: coh901318: convert callback to helper functionDave Jiang1-6/+3
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: at_xdmac: convert callback to helper functionDave Jiang1-4/+4
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: at_hdmac: convert callback to helper functionDave Jiang1-9/+2
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: Add helper function to prep for error reportingDave Jiang1-0/+72
Dmaengine does not provide a way to pass back the result from a DMA transaction through the callback function. We are adding dmaengine helper function in order to prep for a mechanism that allow result status and other information through the callback. The initial conversion will make the existing driver use these new helper functions but retain the original behavior of the code. However, the helper functions paves a way towards adding the result parameter through callback. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-07Linux 4.8-rc1Linus Torvalds1-2/+2
2016-08-07block: rename bio bi_rw to bi_opfJens Axboe51-157/+158
Since commit 63a4cc24867d, bio->bi_rw contains flags in the lower portion and the op code in the higher portions. This means that old code that relies on manually setting bi_rw is most likely going to be broken. Instead of letting that brokeness linger, rename the member, to force old and out-of-tree code to break at compile time instead of at runtime. No intended functional changes in this commit. Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07target: iblock_execute_sync_cache() should use bio_set_op_attrs()Jens Axboe1-1/+1
The original commit missed this function, it needs to mark it a write flush. Cc: Mike Christie <mchristi@redhat.com> Fixes: e742fc32fcb4 ("target: use bio op accessors") Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07mm: make __swap_writepage() use bio_set_op_attrs()Jens Axboe1-2/+3
Cleaner than manipulating bio->bi_rw flags directly. Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07block/mm: make bdev_ops->rw_page() take a bool for read/writeJens Axboe11-53/+51
Commit abf545484d31 changed it from an 'rw' flags type to the newer ops based interface, but now we're effectively leaking some bdev internals to the rest of the kernel. Since we only care about whether it's a read or a write at that level, just pass in a bool 'is_write' parameter instead. Then we can also move op_is_write() and friends back under CONFIG_BLOCK protection. Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-08-07fs: return EPERM on immutable inodeEryu Guan4-4/+5
In most cases, EPERM is returned on immutable inode, and there're only a few places returning EACCES. I noticed this when running LTP on overlayfs, setxattr03 failed due to unexpected EACCES on immutable inode. So converting all EACCES to EPERM on immutable inode. Acked-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-08-05ramoops: use persistent_ram_free() instead of kfree() for freeing przHiraku Toyooka1-3/+3
persistent_ram_zone(=prz) structures are allocated by persistent_ram_new(), which includes vmap() or ioremap(). But they are currently freed by kfree(). This uses persistent_ram_free() for correct this asymmetry usage. Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com> Cc: Mark Salyzyn <salyzyn@android.com> Cc: Seiji Aguchi <seiji.aguchi.tr@hitachi.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2016-08-05ramoops: use DT reserved-memory bindingsKees Cook4-33/+56
Instead of a ramoops-specific node, use a child node of /reserved-memory. This requires that of_platform_device_create() be explicitly called for the node, though, since "/reserved-memory" does not have its own "compatible" property. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Rob Herring <robh@kernel.org>
2016-08-05NTB: ntb_hw_intel: use local variable pdevAllen Hubbe1-5/+5
Clean up duplicated expression by replacing it with the equivalent local variable pdev. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
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