linux-kernel - [PATCH] drivers: spi: spi-au1550: replace ternary operator with min()

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Message-Id: <20220513130333.58379-1-guozhengkui@vivo.com>
Date:   Fri, 13 May 2022 21:03:33 +0800
From:   Guo Zhengkui <guozhengkui@...o.com>
To:     Mark Brown <broonie@...nel.org>,
        linux-spi@...r.kernel.org (open list:SPI SUBSYSTEM),
        linux-kernel@...r.kernel.org (open list)
Cc:     zhengkui_guo@...look.com, Guo Zhengkui <guozhengkui@...o.com>
Subject: [PATCH] drivers: spi: spi-au1550: replace ternary operator with min()

Fix the following coccicheck warnings:

drivers/spi/spi-au1550.c:408:21-22: WARNING opportunity for min()
drivers/spi/spi-au1550.c:542:21-22: WARNING opportunity for min()

min() macro is defined in include/linux/minmax.h. It avoids multiple
evaluations of the arguments when non-constant and performs strict
type-checking.

Signed-off-by: Guo Zhengkui <guozhengkui@...o.com>
---
 drivers/spi/spi-au1550.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index 4b59a1b1bf7e..e008761298da 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -405,7 +405,7 @@ static int au1550_spi_dma_txrxb(struct spi_device *spi, struct spi_transfer *t)
 		dma_unmap_single(hw->dev, dma_tx_addr, t->len,
 			DMA_TO_DEVICE);
 
-	return hw->rx_count < hw->tx_count ? hw->rx_count : hw->tx_count;
+	return min(hw->rx_count, hw->tx_count);
 }
 
 static irqreturn_t au1550_spi_dma_irq_callback(struct au1550_spi *hw)
@@ -539,7 +539,7 @@ static int au1550_spi_pio_txrxb(struct spi_device *spi, struct spi_transfer *t)
 
 	wait_for_completion(&hw->master_done);
 
-	return hw->rx_count < hw->tx_count ? hw->rx_count : hw->tx_count;
+	return min(hw->rx_count, hw->tx_count);
 }
 
 static irqreturn_t au1550_spi_pio_irq_callback(struct au1550_spi *hw)
-- 
2.20.1