Re: [PATCH 3/3] Staging: iio: adc: ad7280a.c: Fixed Macro argument reuse

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, Jul 18, 2017 at 03:17:52PM +0530, Jaya Durga wrote:
> diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
> index d5ab83f..cb94b7f 100644
> --- a/drivers/staging/iio/adc/ad7280a.c
> +++ b/drivers/staging/iio/adc/ad7280a.c
> @@ -99,9 +99,12 @@
>  #define AD7280A_DEVADDR_MASTER		0
>  #define AD7280A_DEVADDR_ALL		0x1F
>  /* 5-bit device address is sent LSB first */
> -#define AD7280A_DEVADDR(addr)	(((addr & 0x1) << 4) | ((addr & 0x2) << 3) | \
> -				(addr & 0x4) | ((addr & 0x8) >> 3) | \
> -				((addr & 0x10) >> 4))
> +static inline unsigned int AD7280A_DEVADDR(unsigned int addr)

Don't make this inline.  GCC is going to ignore the inline anyway, and
make up its own mind about what to do.  Change the name to not be all
caps.  Generally, all caps means it's a macro.

> +{
> +	return ((((addr & 0x1) << 4) | ((addr & 0x2) << 3) |
> +		  (addr & 0x4) | ((addr & 0x8) >> 3) |
> +		  ((addr & 0x10) >> 4)));

We don't need all the parens.

	return ((addr & 0x1) << 4) |
	       ((addr & 0x2) << 3) |
		(addr & 0x4)       |
	       ((addr & 0x8) >> 3) |
	       ((addr & 0x10) >> 4);

regards,
dan carpenter

_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel



[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux