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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2018-03-02 13:07:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-09 21:21:01 +0300 |
| commit | 686351f342fa745d10ddef08d0e930cf53b0c673 (patch) | |
| tree | e5684acf2eb9411d4b7d529d5a9a083da6cc2f89 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 3a0ab62f43de5c6ec55fb9d6721168602008142a (diff) | |
| download | linux-686351f342fa745d10ddef08d0e930cf53b0c673.tar.xz | |
serial: imx: simplify some conditions related to dma
Neither .dma_is_txing nor .dma_is_rxing can evaluate to true if
.dma_is_enabled evaluates to false:
The only function that sets .dma_is_txing to a non-zero value is
imx_dma_tx() which is only called if .dma_is_enabled is true. Same for
.dma_is_rxing and start_rx_dma(). And before .dma_is_enabled is set to 0
when imx_shutdown calls imx_disable_dma(), .dma_is_rxing and
.dma_is_txing are reset to zero before, too.
For this reason
sport->dma_is_enabled && sport->dma_is_rxing
has the same value as
sport->dma_is_rxing
which allows to simplify three if conditions.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions