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| author | Halil Pasic <pasic@linux.ibm.com> | 2024-10-07 22:10:30 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-10-10 15:32:43 +0200 |
| commit | 14c7579376279e507e52bf022192b46097a55377 (patch) | |
| tree | 47a9a5e352e8a8830d89d302011c06402be347e2 /tools/perf/scripts/python/bin/task-analyzer-record | |
| parent | s390/facilities: Fix warning about shadow of global variable (diff) | |
| download | linux-14c7579376279e507e52bf022192b46097a55377.tar.gz linux-14c7579376279e507e52bf022192b46097a55377.zip | |
s390/virtio_ccw: Fix dma_parm pointer not set up
At least since commit 334304ac2bac ("dma-mapping: don't return errors
from dma_set_max_seg_size") setting up device.dma_parms is basically
mandated by the DMA API. As of now Channel (CCW) I/O in general does not
utilize the DMA API, except for virtio. For virtio-ccw however the
common virtio DMA infrastructure is such that most of the DMA stuff
hinges on the virtio parent device, which is a CCW device.
So lets set up the dma_parms pointer for the CCW parent device and hope
for the best!
Fixes: 334304ac2bac ("dma-mapping: don't return errors from dma_set_max_seg_size")
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Link: https://lore.kernel.org/r/20241007201030.204028-1-pasic@linux.ibm.com
Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/bin/task-analyzer-record')
0 files changed, 0 insertions, 0 deletions