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| author | Sanman Pradhan <psanman@juniper.net> | 2026-04-14 17:25:12 +0000 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2026-08-07 10:45:11 +0100 |
| commit | 75d42d990335322852ed5f7ce324b701c0949d79 (patch) | |
| tree | 0fdda267a4a021008566c53fca12b7fcdb00788d /scripts/git.orderFile | |
| parent | f67379bcf6c8440acdb00eb347b3e2cc9dd84a89 (diff) | |
| download | linux-75d42d990335322852ed5f7ce324b701c0949d79.tar.gz linux-75d42d990335322852ed5f7ce324b701c0949d79.zip | |
hwtracing: hisi_ptt: Propagate DMA reset timeout in trace_start()
hisi_ptt_wait_dma_reset_done() discards the return value of
readl_poll_timeout_atomic(). If the DMA engine does not complete its
reset within the timeout, hisi_ptt_trace_start() proceeds to start
tracing regardless.
Return a bool from hisi_ptt_wait_dma_reset_done(), consistent with the
other wait helpers in this driver. On timeout, log an error, de-assert
the reset bit, and return -ETIMEDOUT. Move ctrl->started to the
successful path so a failed start does not leave the trace marked as
active.
Fixes: ff0de066b463 ("hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device")
Cc: stable@vger.kernel.org
Signed-off-by: Sanman Pradhan <psanman@juniper.net>
Reviewed-by: Sizhe Liu <liusizhe5@huawei.com>
Reviewed-by: Yicong Yang <yangyccccc@gmail.com>
Tested-by: Sizhe Liu <liusizhe5@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20260414172451.14331-2-sanman.pradhan@hpe.com
Diffstat (limited to 'scripts/git.orderFile')
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