From: Ulf Hansson > Sent: 30 June 2021 11:03 ... > > It turns out that if CONFIG_VMAP_STACK is enabled and src or dst is > > memory allocated on stack, SDIO operations fail due to invalid memory > > address conversion: ... > > Fix that by using kmalloc() allocated memory for read/write 16/32 > > funtions. Could a field be added to 'struct cw1200_common' that the functions could use as a bounce buffer? ISTM that is DMA are being done there must be some serialisation in there somewhere that will stop concurrent accesses. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
