diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2016-07-20 14:26:51 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-21 20:21:06 +1000 |
| commit | 802a345183c0308aa64969cca62c23961bf86a44 (patch) | |
| tree | 53c3c1eee60c1bc9cefea09a1587c121576dabb6 /net/lapb/lapb_timer.c | |
| parent | 0eab46be21449f1612791201aa029facb676bd31 (diff) | |
powerpc/powernv/ioda: Fix endianness when reading TCEs
The iommu_table_ops::exchange() callback writes new TCE to the table and
returns old value and permission mask. The old TCE value is correctly
converted from BE to CPU endian; however permission mask was calculated
from BE value and therefore always returned DMA_NONE which could cause
memory leak on LE systems using VFIO SPAPR TCE IOMMU v1 driver.
This fixes pnv_tce_xchg() to have @oldtce a CPU endian.
Fixes: 05c6cfb9dce0 ("powerpc/iommu/powernv: Release replaced TCE")
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions