2021-08-20 03:24:28

by CGEL

Subject: [PATCH linux-next] spi-stm32: fix Coccinelle warnings

From: jing yangyang <[email protected]>

WARNING !A || A && B is equivalent to !A || B

This issue was detected with the help of Coccinelle.

Reported-by: Zeal Robot <[email protected]>
Signed-off-by: jing yangyang <[email protected]>
---
drivers/spi/spi-stm32.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 14ca7ea..cc4a731 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -912,8 +912,8 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id)
if (!spi->cur_usedma && (spi->rx_buf && (spi->rx_len > 0)))
stm32h7_spi_read_rxfifo(spi);
if (!spi->cur_usedma ||
- (spi->cur_usedma && (spi->cur_comm == SPI_SIMPLEX_TX ||
- spi->cur_comm == SPI_3WIRE_TX)))
+ (spi->cur_comm == SPI_SIMPLEX_TX ||
+ spi->cur_comm == SPI_3WIRE_TX))
end = true;
}

--
1.8.3.1

2021-08-20 06:33:33

by Alain Volmat

Subject: Re: [PATCH linux-next] spi-stm32: fix Coccinelle warnings

Hi,

thanks for the patch. We've had this issue reported previously with a patch
provided at
(https://lore.kernel.org/linux-spi/20210713191004.GA14729@5eb5c2cbef84/).
I've put my reviewed-by so it should make its way to the linux-next soon.

Regards,
Alain

On Thu, Aug 19, 2021 at 08:19:52PM -0700, CGEL wrote:
> From: jing yangyang <[email protected]>
>
> WARNING !A || A && B is equivalent to !A || B
>
> This issue was detected with the help of Coccinelle.
>
> Reported-by: Zeal Robot <[email protected]>
> Signed-off-by: jing yangyang <[email protected]>
> ---
> drivers/spi/spi-stm32.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
> index 14ca7ea..cc4a731 100644
> --- a/drivers/spi/spi-stm32.c
> +++ b/drivers/spi/spi-stm32.c
> @@ -912,8 +912,8 @@ static irqreturn_t stm32h7_spi_irq_thread(int irq, void *dev_id)
> if (!spi->cur_usedma && (spi->rx_buf && (spi->rx_len > 0)))
> stm32h7_spi_read_rxfifo(spi);
> if (!spi->cur_usedma ||
> - (spi->cur_usedma && (spi->cur_comm == SPI_SIMPLEX_TX ||
> - spi->cur_comm == SPI_3WIRE_TX)))
> + (spi->cur_comm == SPI_SIMPLEX_TX ||
> + spi->cur_comm == SPI_3WIRE_TX))
> end = true;
> }
>
> --
> 1.8.3.1
>
>