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Subject[PATCH 0/4] Assorted DMA mapping tweaks
Hi Andrew,

This is a miscellany of fixes and tweaks to the common DMA mapping code
which I've been collecting. They don't strictly depend on each other,
but I figure I may as well send them all together for the sake of
explaining them in one place:

#1 is a straightforward and hopefully obvious bugfix.
#2 has been posted before but I subsequently forgot to follow up on it.
It's still possible to hit this at least on arm64 systems, with the
SWIOTLB/pl330 combination blowing up just running dmatest.
#3 follows on from a recent discussion about dma_sync_sg[0]; there's
already a related patch in -next from Sakari clarifying the docs.
#4 seemed worth posting now that the recent rework means it no longer
has to be a sprawling touch-all-the-architectures patch for something
so small.



Robin Murphy (4):
dmapool: Fix overflow condition in pool_find_page
dma-mapping: Tidy up dma_parms default handling
dma-debug: Check nents in dma_sync_sg*
dma-debug: Allow poisoning nonzero allocations

include/asm-generic/dma-mapping-common.h | 2 +-
include/linux/dma-debug.h | 6 ++++--
include/linux/dma-mapping.h | 17 ++++++++++-------
include/linux/poison.h | 3 +++
lib/Kconfig.debug | 10 ++++++++++
lib/dma-debug.c | 14 +++++++++++++-
mm/dmapool.c | 2 +-
7 files changed, 42 insertions(+), 12 deletions(-)


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