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| author |   Gao Pan <pandy.gao@nxp.com> | 2016-11-24 19:04:42 +0800 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-11-25 13:04:47 +0000 |
| commit | 14de3918eacfc624023775c319e85e6597514195 (patch) | |
| tree | 625f20f1d1031d5ddb1ce6f7a5c4be3ba5c0ecf4 /drivers/spi | |
| parent | spi: imx: fix potential shift truncation (diff) | |
| download | wireguard-linux-14de3918eacfc624023775c319e85e6597514195.tar.xz wireguard-linux-14de3918eacfc624023775c319e85e6597514195.zip | |
spi: imx: replace schedule() with cond_resched()
It's more rational that just do the schedule when necessary
other than do it every time. Thus, it's better to replace
schedule() with cond_resched() in fsl_lpspi_txfifo_empty(),
which contributes to saving cpu time.
Signed-off-by: Gao Pan <pandy.gao@nxp.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 18a269d2e2f8..539c971b9f05 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -176,7 +176,7 @@ static int fsl_lpspi_txfifo_empty(struct fsl_lpspi_data *fsl_lpspi) dev_dbg(fsl_lpspi->dev, "txfifo empty timeout\n"); return -ETIMEDOUT; } - schedule(); + cond_resched(); } while (txcnt); |