[PATCH 1/2] staging: slicoss: rewrite eeprom checksum code

Joe Perches joe at perches.com
Sun May 18 04:12:25 UTC 2014


On Sat, 2014-05-17 at 21:00 -0700, David Matlack wrote:
[]
> diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
[]
> +static inline u16 __reduce(u32 checksum)
> +{
> +	u16 lower_16 = checksum & 0xFFFF;
> +	u16 upper_16 = (checksum >> 16) & 0xFFFF;
> +
> +	checksum = lower_16 + upper_16;
> +
> +	if (checksum > 65535)
> +		checksum -= 65535;
> +
> +	return checksum;
> +}

The if seems unnecessary.

Perhaps declare a u16 return var or use

	return lower_16 + upper_16;




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