Nathan Fontenot 0ba3e10116 crypto/nx/nx-842: Fix handling of vmalloc addresses
The powerpc specific nx-842 compression driver does not currently
handle translating a vmalloc address to a physical address.

The current driver uses __pa() for all addresses which does not
properly handle vmalloc addresses and thus causes a failure since
we do not pass a proper physical address to the hypervisor.

This patch adds a routine to convert an address to a physical
address by checking for vmalloc addresses and handling them properly.

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
 ---
 drivers/crypto/nx/nx-842.c |   29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-02-11 11:24:49 +11:00
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