Hi all, as mentioned previously [1], the change to switch imx-sdma to use a dma-pool for the dma descriptors is broken. This series reverts the broken commits and adds an alternative solution to the issue, which was solved with using the dma pool. Namely the freeing of dma descriptor memory from the device_terminate_all callback, which may be called with interrupts disabled, causing a warning from the dma mapping API. As the broken code is part of 4.19-rc1, this series needs to go in as a regression fix. Regards, Lucas [1] https://patchwork.kernel.org/patch/10473979/ Lucas Stach (4): Revert "dmaengine: imx-sdma: Use GFP_NOWAIT for dma allocations" Revert "dmaengine: imx-sdma: alloclate bd memory from dma pool" dmaengine: imx-sdma: implement channel termination via worker dmaengine: imx-sdma: use GFP_NOWAIT for dma descriptor allocations drivers/dma/imx-sdma.c | 58 +++++++++++++++++++++++++----------------- 1 file changed, 35 insertions(+), 23 deletions(-) -- 2.18.0
