I just went through the email thread and found that this issue may
affect all the ARM kernel. But the patches are still under discussion. I
will keep eyes on it and maybe backport them when it is ready.
For the USB fixing, it adds some flush_dcache_page operation in ISP1760
HCD. We might need similar solution in EHCI HCD for IMX51.
For the libata fixing, patch is not finalized and they agreed to create
some PIO mapping API similar with DMA mapping API. It will take some
time to review and merge
-Bryan
** Changed in: linux-fsl-imx51 (Ubuntu)
Status: New => Incomplete
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Cache incoherency may corrupt code pages read from filesystems on USB or PIO
mass storage
https://bugs.launchpad.net/bugs/523293
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