| Message ID | 20200525133120.57273-1-broonie@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | spi: Remove note about transfer limit for spi_write_then_read() | expand |
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index c69d23379e08..a6f3f1ae72d7 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3869,8 +3869,7 @@ static u8 *buf; * is zero for success, else a negative errno status code. * This call may only be used from a context that may sleep. * - * Parameters to this routine are always copied using a small buffer; - * portable code should never use this for more than 32 bytes. + * Parameters to this routine are always copied using a small buffer. * Performance-sensitive or bulk transfer code should instead use * spi_{async,sync}() calls with dma-safe buffers. *
Originally spi_write_then_read() used a fixed statically allocated buffer which limited the maximum message size it could handle. This restriction was removed a while ago so that we could dynamically allocate a buffer if required but the kerneldoc was not updated to reflect this, do so. Reported-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Mark Brown <broonie@kernel.org> --- drivers/spi/spi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)