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spi: Catch improper use of PTP system timestamping API

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We can catch whether the SPI controller has declared it can take care of
software timestamping transfers, but didn't. So do it.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20191227012444.1204-1-olteanv@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vladimir Oltean
2019-12-27 03:24:44 +02:00
committed by Mark Brown
parent f03ee2042b
commit f971a20744
1 changed files with 7 additions and 0 deletions
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7
drivers/spi/spi.c
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@ -1680,6 +1680,13 @@ void spi_finalize_current_message(struct spi_controller *ctlr)
}
}
if (unlikely(ctlr->ptp_sts_supported)) {
list_for_each_entry(xfer, &mesg->transfers, transfer_list) {
WARN_ON_ONCE(xfer->ptp_sts && !xfer->timestamped_pre);
WARN_ON_ONCE(xfer->ptp_sts && !xfer->timestamped_post);
}
}
spi_unmap_msg(ctlr, mesg);
if (ctlr->cur_msg_prepared && ctlr->unprepare_message) {