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(parent: f95d807) | patch
parisc: mask out enable and reserved bits from sba imask
authorSven Schnelle <svens@stackframe.org>
Tue, 11 Aug 2020 16:19:19 +0000 (18:19 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Aug 2020 06:24:17 +0000 (08:24 +0200)
commit11ef6a24402fa710614721775187ceb0fb4662cb
tree5cfd3a729dc015d8ac06b8f4d04534977af47bc6tree
parentf95d807577cf10d89936594dab66e086e9858af0commit | diff
parisc: mask out enable and reserved bits from sba imask

commit 5b24993c21cbf2de11aff077a48c5cb0505a0450 upstream.

When using kexec the SBA IOMMU IBASE might still have the RE
bit set. This triggers a WARN_ON when trying to write back the
IBASE register later, and it also makes some mask calculations fail.

Cc: <stable@vger.kernel.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/parisc/sba_iommu.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)