| Message ID | 20240126171546.1233172-17-tudor.ambarus@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spi: s3c64xx: straightforward cleanup | expand |
On Fri, Jan 26, 2024 at 11:16 AM Tudor Ambarus <tudor.ambarus@linaro.org> wrote: > > val &= ~mask; > val |= mask; > > is equivalent to: > val |= mask; > > Drop the superfluous bitwise NOT operation. > > Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org> > --- That's much more clear. Also I'm pretty sure if you compare .o file before and after the patch, they would be identical -- another way to argue the patch has no functional change. Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org> > drivers/spi/spi-s3c64xx.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c > index e9344fe71e56..43b888c8812e 100644 > --- a/drivers/spi/spi-s3c64xx.c > +++ b/drivers/spi/spi-s3c64xx.c > @@ -1089,7 +1089,6 @@ static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd) > > val = readl(regs + S3C64XX_SPI_MODE_CFG); > val &= ~S3C64XX_SPI_MODE_4BURST; > - val &= ~(S3C64XX_SPI_MAX_TRAILCNT << S3C64XX_SPI_TRAILCNT_OFF); > val |= (S3C64XX_SPI_MAX_TRAILCNT << S3C64XX_SPI_TRAILCNT_OFF); > writel(val, regs + S3C64XX_SPI_MODE_CFG); > > -- > 2.43.0.429.g432eaa2c6b-goog >
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index e9344fe71e56..43b888c8812e 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1089,7 +1089,6 @@ static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd) val = readl(regs + S3C64XX_SPI_MODE_CFG); val &= ~S3C64XX_SPI_MODE_4BURST; - val &= ~(S3C64XX_SPI_MAX_TRAILCNT << S3C64XX_SPI_TRAILCNT_OFF); val |= (S3C64XX_SPI_MAX_TRAILCNT << S3C64XX_SPI_TRAILCNT_OFF); writel(val, regs + S3C64XX_SPI_MODE_CFG);
val &= ~mask; val |= mask; is equivalent to: val |= mask; Drop the superfluous bitwise NOT operation. Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org> --- drivers/spi/spi-s3c64xx.c | 1 - 1 file changed, 1 deletion(-)