diff options
| author | Klaus Jensen <[email protected]> | 2022-12-13 09:58:07 +0100 |
|---|---|---|
| committer | Christoph Hellwig <[email protected]> | 2022-12-21 09:05:21 +0100 |
| commit | b5f96cb719d8ba220b565ddd3ba4ac0d8bcfb130 (patch) | |
| tree | b01751c12dca89b04d77382965de5deb116e356f /tools/perf/scripts/python/stackcollapse.py | |
| parent | 53eab8e76667b124615a943a033cdf97c80c242a (diff) | |
nvme-pci: fix doorbell buffer value endianness
When using shadow doorbells, the event index and the doorbell values are
written to host memory. Prior to this patch, the values written would
erroneously be written in host endianness. This causes trouble on
big-endian platforms. Fix this by adding missing endian conversions.
This issue was noticed by Guenter while testing various big-endian
platforms under QEMU[1]. A similar fix required for hw/nvme in QEMU is
up for review as well[2].
[1]: https://lore.kernel.org/qemu-devel/[email protected]/
[2]: https://lore.kernel.org/qemu-devel/[email protected]/
Fixes: f9f38e33389c ("nvme: improve performance for virtual NVMe devices")
Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Klaus Jensen <[email protected]>
Signed-off-by: Christoph Hellwig <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions