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| author |  Andy Shevchenko <andriy.shevchenko@linux.intel.com>
| 2024-05-07 23:10:27 +0300 |
|---|---|---|
| committer |  Mark Brown <broonie@kernel.org>
| 2024-05-08 11:39:46 +0900 |
| commit | 8cc3bad9d9d6a4735a8c8998c6daa1ef31cbf708 (patch) | |
| tree | 64b5f244ba0c4dd6edc84ce9701857a5ecc28f17 /drivers/spi | |
| parent | MAINTAINERS: repair file entry in AIROHA SPI SNFI DRIVER (diff) | |
| download | linux-8cc3bad9d9d6a4735a8c8998c6daa1ef31cbf708.tar.gz linux-8cc3bad9d9d6a4735a8c8998c6daa1ef31cbf708.tar.bz2 linux-8cc3bad9d9d6a4735a8c8998c6daa1ef31cbf708.zip | |
spi: Remove unneded check for orig_nents
Both dma_unmap_sgtable() and sg_free_table() in spi_unmap_buf_attrs()
have checks for orig_nents against 0. No need to duplicate this.
All the same applies to other DMA mapping API calls.
Also note, there is no other user in the kernel that does this kind of
checks.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240507201028.564630-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index a500a4137a78..a8966caed841 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -1208,12 +1208,10 @@ static void spi_unmap_buf_attrs(struct spi_controller *ctlr, enum dma_data_direction dir, unsigned long attrs) { - if (sgt->orig_nents) { - dma_unmap_sgtable(dev, sgt, dir, attrs); - sg_free_table(sgt); - sgt->orig_nents = 0; - sgt->nents = 0; - } + dma_unmap_sgtable(dev, sgt, dir, attrs); + sg_free_table(sgt); + sgt->orig_nents = 0; + sgt->nents = 0; } void spi_unmap_buf(struct spi_controller *ctlr, struct device *dev, @@ -1318,10 +1316,8 @@ static void spi_dma_sync_for_device(struct spi_controller *ctlr, if (!ctlr->cur_msg_mapped) return; - if (xfer->tx_sg.orig_nents) - dma_sync_sgtable_for_device(tx_dev, &xfer->tx_sg, DMA_TO_DEVICE); - if (xfer->rx_sg.orig_nents) - dma_sync_sgtable_for_device(rx_dev, &xfer->rx_sg, DMA_FROM_DEVICE); + dma_sync_sgtable_for_device(tx_dev, &xfer->tx_sg, DMA_TO_DEVICE); + dma_sync_sgtable_for_device(rx_dev, &xfer->rx_sg, DMA_FROM_DEVICE); } static void spi_dma_sync_for_cpu(struct spi_controller *ctlr, @@ -1333,10 +1329,8 @@ static void spi_dma_sync_for_cpu(struct spi_controller *ctlr, if (!ctlr->cur_msg_mapped) return; - if (xfer->rx_sg.orig_nents) - dma_sync_sgtable_for_cpu(rx_dev, &xfer->rx_sg, DMA_FROM_DEVICE); - if (xfer->tx_sg.orig_nents) - dma_sync_sgtable_for_cpu(tx_dev, &xfer->tx_sg, DMA_TO_DEVICE); + dma_sync_sgtable_for_cpu(rx_dev, &xfer->rx_sg, DMA_FROM_DEVICE); + dma_sync_sgtable_for_cpu(tx_dev, &xfer->tx_sg, DMA_TO_DEVICE); } #else /* !CONFIG_HAS_DMA */ static inline int __spi_map_msg(struct spi_controller *ctlr, |