Re: [PATCH 2/2] staging: slicoss: replace UPDATE_STATS_GB macro into an inline function

From: Markus BÃhme
Date: Wed Nov 23 2016 - 17:32:10 EST


On 11/23/2016 08:00 PM, Markus Böhme wrote:
> On 11/23/2016 07:10 PM, Sergio Paracuellos wrote:
>> This patch replaces UPDATE_STATS_GB macro in slic.h header file
>> into an inline function. This provides type safety and readability.
>>
>> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx>
>> ---
>> drivers/staging/slicoss/slic.h | 6 ++---
>> drivers/staging/slicoss/slicoss.c | 56 ++++++++++++++++++++-------------------
>> 2 files changed, 32 insertions(+), 30 deletions(-)
>>
>> diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
>> index 2c05868..b19ddc9 100644
>> --- a/drivers/staging/slicoss/slic.h
>> +++ b/drivers/staging/slicoss/slic.h
>> @@ -548,9 +548,9 @@ static inline void slic_flush_write(struct adapter *adapter)
>> ioread32(adapter->regs + SLIC_REG_HOSTID);
>> }
>>
>> -#define UPDATE_STATS_GB(largestat, newstat, oldstat) \
>> -{ \
>> - (largestat) += ((newstat) - (oldstat)); \
>> +static inline u64 update_stats_gb(const u64 newstat, const u64 oldstat)
>> +{
>> + return (newstat - oldstat);
>> }
>>
>
> I suggest dropping the parentheses here. They are unnecessary and likely
> to lead to a cleanup patch.
>

Giving it a second thought, perhaps one should do without this
macro/function and just inline the calculation. IMO this would improve
readability even more.

Regards,
Markus