Re: [PATCH v1 1/8] spi: Introduce internal spi_xfer_is_dma_mapped() helper

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On 31/05/2024 20:42, Andy Shevchenko wrote:
There are few drivers that use the same pattern to check if the transfer
is DMA mapped or not. Provide a helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
  drivers/spi/internals.h | 8 ++++++++
  1 file changed, 8 insertions(+)

diff --git a/drivers/spi/internals.h b/drivers/spi/internals.h
index 4a28a8395552..47a87c2a6979 100644
--- a/drivers/spi/internals.h
+++ b/drivers/spi/internals.h
@@ -40,4 +40,12 @@ static inline void spi_unmap_buf(struct spi_controller *ctlr,
  }
  #endif /* CONFIG_HAS_DMA */
+static inline bool spi_xfer_is_dma_mapped(struct spi_controller *ctlr,
+					  struct spi_device *spi,
+					  struct spi_transfer *xfer)
+{
+	return ctlr->can_dma && ctlr->can_dma(ctlr, spi, xfer) &&
+	       ctlr->cur_msg_mapped;
+}
+
  #endif /* __LINUX_SPI_INTERNALS_H */

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>




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