[PATCH AUTOSEL for 3.18 064/101] firewire-ohci: work around oversized DMA reads on JMicron controllers

From: Hector Martin [ Upstream commit 188775181bc05f29372b305ef96485840e351fde ] At least some JMicron controllers issue buggy oversized DMA reads when fetching context descriptors, always fetching 0x20 bytes at once for descriptors which are only 0x10 bytes long. This is

[PATCH AUTOSEL for 3.18 064/101] firewire-ohci: work around oversized DMA reads on JMicron controllers

From: Hector Martin [ Upstream commit 188775181bc05f29372b305ef96485840e351fde ] At least some JMicron controllers issue buggy oversized DMA reads when fetching context descriptors, always fetching 0x20 bytes at once for descriptors which are only 0x10 bytes long. This is often harmless, but