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SubjectRe: PCI DMA to small buffers on cache-incoherent arch
   From: Roland Dreier <>
Date: 10 Jun 2002 21:04:30 -0700

That's fine but there are drivers (USB, etc) doing

struct something {
int field1;
char dma_buffer[SMALLER_THAN_CACHE_LINE];
int field2;

struct something *dev = kmalloc(sizeof *dev, GFP_KERNEL);

Do they have to change to

How about allocating struct something using pci_pool?
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