Halil Pasic 14c7579376 s390/virtio_ccw: Fix dma_parm pointer not set up ... At least since commit 334304ac2b ("dma-mapping: don't return errors from dma_set_max_seg_size") setting up device.dma_parms is basically mandated by the DMA API. As of now Channel (CCW) I/O in general does not utilize the DMA API, except for virtio. For virtio-ccw however the common virtio DMA infrastructure is such that most of the DMA stuff hinges on the virtio parent device, which is a CCW device. So lets set up the dma_parms pointer for the CCW parent device and hope for the best! Fixes: 334304ac2b ("dma-mapping: don't return errors from dma_set_max_seg_size") Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com> Reviewed-by: Eric Farman <farman@linux.ibm.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com> Link: https://lore.kernel.org/r/20241007201030.204028-1-pasic@linux.ibm.com Signed-off-by: Halil Pasic <pasic@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>		2024-10-10 15:32:43 +02:00
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Makefile	s390: drivers: Remove redundant license text	2017-11-24 14:28:47 +01:00
virtio_ccw.c	s390/virtio_ccw: Fix dma_parm pointer not set up	2024-10-10 15:32:43 +02:00