Linus Torvalds 7007c89463 Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE"" ... commit 901c7280ca upstream. Halil Pasic points out [1] that the full revert of that commit (revert in bddac7c1e0), and that a partial revert that only reverts the problematic case, but still keeps some of the cleanups is probably better.  And that partial revert [2] had already been verified by Oleksandr Natalenko to also fix the issue, I had just missed that in the long discussion. So let's reinstate the cleanups from commit aa6f8dcbab ("swiotlb: rework "fix info leak with DMA_FROM_DEVICE""), and effectively only revert the part that caused problems. Link: https://lore.kernel.org/all/20220328013731.017ae3e3.pasic@linux.ibm.com/ [1] Link: https://lore.kernel.org/all/20220324055732.GB12078@lst.de/ [2] Link: https://lore.kernel.org/all/4386660.LvFx2qVVIh@natalenko.name/ [3] Suggested-by: Halil Pasic <pasic@linux.ibm.com> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-04-08 14:24:13 +02:00
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irq
assoc_array.rst
boot-time-mm.rst
bus-virt-phys-mapping.rst
cachetlb.rst
circular-buffers.rst
cpu_hotplug.rst
debug-objects.rst
debugging-via-ohci1394.rst
dma-api-howto.rst
dma-api.rst
dma-attributes.rst	Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE""	2022-04-08 14:24:13 +02:00
dma-isa-lpc.rst
errseq.rst
genalloc.rst
generic-radix-tree.rst
genericirq.rst
gfp_mask-from-fs-io.rst
idr.rst
index.rst
kernel-api.rst
kobject.rst
kref.rst
librs.rst
local_ops.rst
memory-allocation.rst
memory-hotplug.rst
mm-api.rst
packing.rst
padata.rst
pin_user_pages.rst
printk-basics.rst
printk-formats.rst
protection-keys.rst
rbtree.rst
refcount-vs-atomic.rst
symbol-namespaces.rst
this_cpu_ops.rst
timekeeping.rst
tracepoint.rst
unaligned-memory-access.rst
workqueue.rst
xarray.rst