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coresight: Fix check in coresight_tmc_etr_buf_insert_barrier_packet
We request for "CORESIGHT_BARRIER_PKT_SIZE" length and we should be happy when we get that size. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -807,7 +807,7 @@ tmc_etr_buf_insert_barrier_packet(struct etr_buf *etr_buf, u64 offset)
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len = tmc_etr_buf_get_data(etr_buf, offset,
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CORESIGHT_BARRIER_PKT_SIZE, &bufp);
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if (WARN_ON(len <= CORESIGHT_BARRIER_PKT_SIZE))
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if (WARN_ON(len < CORESIGHT_BARRIER_PKT_SIZE))
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return -EINVAL;
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coresight_insert_barrier_packet(bufp);
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return offset + CORESIGHT_BARRIER_PKT_SIZE;
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