Hi, I develop some drivers for crypto HW and met some difficulties. Some algorithm functions are called behind crypto_kmap() data = crypto_kmap(sg_page(sg), 0); It will do inc_preempt_count(); I try to use DMA controller to perform memory transfers and try to use wait_for_completion() But of course it gives BUG: sleeping function called from invalid context at kernel/sched.c:5786 What is the best way to handle such case? Thanks, Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
