Subject: Re: [net-next:master 1512/1524] net/ipv4/af_inet.c:1486:26: error: 'offt' undeclared

From: Florian Fainelli <[email-masked]>
Date: Mon, 31 Aug 2015 11:09:40 -0700

On 31/08/15 05:25, Madalin-Cristian Bucur wrote:
>> -----Original Message-----
>> From: [email-masked] [mailto:netdev-
>> Subject: Re: [net-next:master 1512/1524] net/ipv4/af_inet.c:1486:26: error:
>> 'offt' undeclared
>>
>> From: kbuild test robot <[email-masked]>
>> Date: Mon, 31 Aug 2015 13:06:10 +0800
>>
>>>    net/ipv4/af_inet.c: In function 'snmp_get_cpu_field64':
>>>>> net/ipv4/af_inet.c:1486:26: error: 'offt' undeclared (first use in this
>> function)
>>>       v = *(((u64 *)bhptr) + offt);
>>>                              ^
>>>    net/ipv4/af_inet.c:1486:26: note: each undeclared identifier is reported
>> only once for each function it appears in
>>>    net/ipv4/af_inet.c: In function 'snmp_fold_field64':
>>>>> net/ipv4/af_inet.c:1499:39: error: 'offct' undeclared (first use in this
>> function)
>>>       res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
>>>                                           ^
>>>>> net/ipv4/af_inet.c:1499:10: error: too many arguments to function
>> 'snmp_get_cpu_field'
>>>       res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
>>>              ^
>>>    net/ipv4/af_inet.c:1455:5: note: declared here
>>>     u64 snmp_get_cpu_field(void __percpu *mib, int cpu, int offt)
>>>         ^
>>>    net/ipv4/af_inet.c:1499: confused by earlier errors, bailing out
>>
>> Thanks, this should fix it:
>>
>> ====================
>> [PATCH] ipv4: Fix 32-bit build.
>>
>>    net/ipv4/af_inet.c: In function 'snmp_get_cpu_field64':
>>>> net/ipv4/af_inet.c:1486:26: error: 'offt' undeclared (first use in this
>> function)
>>       v = *(((u64 *)bhptr) + offt);
>>                              ^
>>    net/ipv4/af_inet.c:1486:26: note: each undeclared identifier is reported
>> only once for each function it appears in
>>    net/ipv4/af_inet.c: In function 'snmp_fold_field64':
>>>> net/ipv4/af_inet.c:1499:39: error: 'offct' undeclared (first use in this
>> function)
>>       res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
>>                                           ^
>>>> net/ipv4/af_inet.c:1499:10: error: too many arguments to function
>> 'snmp_get_cpu_field'
>>       res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
>>              ^
>>    net/ipv4/af_inet.c:1455:5: note: declared here
>>     u64 snmp_get_cpu_field(void __percpu *mib, int cpu, int offt)
>>         ^
>>
>> Reported-by: kbuild test robot <[email-masked]>
>> Signed-off-by: David S. Miller <[email-masked]>
>> ---
>>  net/ipv4/af_inet.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
>> index 0c69c0b..c2d0ebc 100644
>> --- a/net/ipv4/af_inet.c
>> +++ b/net/ipv4/af_inet.c
>> @@ -1471,7 +1471,7 @@ EXPORT_SYMBOL_GPL(snmp_fold_field);
>>
>>  #if BITS_PER_LONG==32
>>
>> -u64 snmp_get_cpu_field64(void __percpu *mib, int cpu, int offct,
>> +u64 snmp_get_cpu_field64(void __percpu *mib, int cpu, int offt,
>>  			 size_t syncp_offset)
>>  {
>>  	void *bhptr;
>> @@ -1496,7 +1496,7 @@ u64 snmp_fold_field64(void __percpu *mib, int
>> offt, size_t syncp_offset)
>>  	int cpu;
>>
>>  	for_each_possible_cpu(cpu) {
>> -		res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
>> +		res += snmp_get_cpu_field(mib, cpu, offt, syncp_offset);
>>  	}
>>  	return res;
>>  }
>> --
>> 2.1.0
>>
>> --
> 
> Hi,
> 
> shouldn't that be snmp_get_cpu_field64() ?
> 
> -		res += snmp_get_cpu_field(mib, cpu, offct, syncp_offset);
> +		res += snmp_get_cpu_field64(mib, cpu, offt, syncp_offset);

Yes, that fixes the build for me as well and sounds like the intent.
-- 
Florian