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

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Date:   Fri, 20 Aug 2021 08:32:02 +0200
From:   Alain Volmat <alain.volmat@...s.st.com>
To:     CGEL <cgel.zte@...il.com>
CC:     Mark Brown <broonie@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        <linux-spi@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        jing yangyang <jing.yangyang@....com.cn>,
        Zeal Robot <zealci@....com.cn>
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 <jing.yangyang@....com.cn>
> 
> WARNING !A || A && B is equivalent to !A || B
> 
> This issue was detected with the help of Coccinelle.
> 
> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: jing yangyang <jing.yangyang@....com.cn>
> ---
>  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
> 
>