diff options
| author | Mateusz Litwin <mateusz.litwin@nokia.com> | 2025-12-18 22:33:04 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-12-23 10:58:57 +0000 |
| commit | d67396c9d697041b385d70ff2fd59cb07ae167e8 (patch) | |
| tree | 34cab41b6c99d58b8774143874ba7b6bf1eb9f0c /tools/perf/scripts/python/bin | |
| parent | 9448598b22c50c8a5bb77a9103e2d49f134c9578 (diff) | |
spi: cadence-quadspi: Prevent lost complete() call during indirect read
A race condition exists between the read loop and IRQ `complete()` call.
An interrupt could call the complete() between the inner loop and
reinit_completion(), potentially losing the completion event and causing
an unnecessary timeout. Moving reinit_completion() before the loop
prevents this. A premature signal will only result in a spurious wakeup
and another wait cycle, which is preferable to waiting for a timeout.
Signed-off-by: Mateusz Litwin <mateusz.litwin@nokia.com>
Link: https://patch.msgid.link/20251218-cqspi_indirect_read_improve-v2-1-396079972f2a@nokia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions
