linux-kernel - possible bug in linux-6.2/drivers/spi/spi-sn-f-ospi.c

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Date:   Mon, 20 Feb 2023 17:05:52 +0000
From:   David Binderman <dcb314@...mail.com>
To:     "broonie@...nel.org" <broonie@...nel.org>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: possible bug in linux-6.2/drivers/spi/spi-sn-f-ospi.c

Hello there,

Static analyser cppcheck says:

linux-6.2/drivers/spi/spi-sn-f-ospi.c:614:31: style: Same expression 'SPI_TX_OCTAL' found multiple times in chain of '|' operators. [duplicateExpression]

Source code is 

   ctlr->mode_bits = SPI_TX_DUAL | SPI_TX_QUAD | SPI_TX_OCTAL
        | SPI_RX_DUAL | SPI_RX_QUAD | SPI_TX_OCTAL
        | SPI_MODE_0 | SPI_MODE_1 | SPI_LSB_FIRST;

Maybe better code:

  ctlr->mode_bits = SPI_TX_DUAL | SPI_TX_QUAD | SPI_TX_OCTAL
        | SPI_RX_DUAL | SPI_RX_QUAD | SPI_RX_OCTAL
        | SPI_MODE_0 | SPI_MODE_1 | SPI_LSB_FIRST;

Regards

David Binderman