Re: [dpdk-dev] [EXT] [PATCH v2] tracepoint: fix compilation with C++

[Sunil Kumar Kori <skori@marvell.com>]

Hello Pawel,

No problem. I will take care of this and send next version with updated information. 

Regards
Sunil Kumar Kori

>-----Original Message-----
>From: Pawel Wodkowski <pawelwod@gmail.com>
>Sent: Tuesday, August 11, 2020 7:04 PM
>To: Sunil Kumar Kori <skori@marvell.com>; dev@dpdk.org
>Cc: david.marchand@redhat.com; Jerin Jacob Kollanukkaran
><jerinj@marvell.com>
>Subject: Re: [EXT] [PATCH v2] tracepoint: fix compilation with C++
>
>Hi Sunil,
>
>I finished porting app to DPDK 20.05 and I'm afraid that I can't do anything
>more here as I don't have proper development environment anymore nor the
>time for setting it up again. If you find this change useful please take over it.
>Otherwise there will be long time before I can send next version. Also, as
>DPDK is deprecating Makefile build system, 20.05 might be last version we are
>using.
>
>Anyway, thanks for guidelines and wish you best.
>
>Paweł
>
>On 11.08.2020 11:29, Sunil Kumar Kori wrote:
>> Hello Pawel,
>>
>> Few suggestions:
>> 1. use 'trace' instead of 'tracepoint' in subject line. i.e. "trace: fix compilation
>with C++"
>> 1. Update change history.
>> 2. Add Fixes tag.
>> 3. Superseed the previous version of this fix.
>>
>> Reference:
>> https://urldefense.proofpoint.com/v2/url?u=http-3A__patches.dpdk.org_p
>>
>atch_66396_&d=DwIDaQ&c=nKjWec2b6R0mOyPaz7xtfQ&r=dXeXaAMkP5COg
>n1zxHMyaF
>>
>1_d9IIuq6vHQO6NrIPjaE&m=jmriYGtutfDqnB0UfW9ali2yisBvQVKQXWkNkDGx
>vgE&s=
>> teGvP5nM7eaYsOm69KvpblaGF5ct--schiCF74Mab_k&e=
>> Rest Looks okay. Please submit next version with above update.
>>
>> Regards
>> Sunil Kumar Kori
>>
>>> -----Original Message-----
>>> From: Pawel Wodkowski <pawelwod@gmail.com>
>>> Sent: Tuesday, August 11, 2020 2:06 AM
>>> To: dev@dpdk.org
>>> Cc: Pawel Wodkowski <pawelwod@gmail.com>;
>david.marchand@redhat.com;
>>> Jerin Jacob Kollanukkaran <jerinj@marvell.com>; Sunil Kumar Kori
>>> <skori@marvell.com>
>>> Subject: [EXT] [PATCH v2] tracepoint: fix compilation with C++
>>>
>>> External Email
>>>
>>> ---------------------------------------------------------------------
>>> - trace_mem is declared as 'void *' which triggers following error:
>>> '...invalid conversion from ‘void*’ to ‘__rte_trace_header*’
>>> [-fpermissive]...'
>>>
>>> Fix this by adding proper typecast to 'struct __rte_trace_header *'.
>>>
>>> Signed-off-by: Pawel Wodkowski <pawelwod@gmail.com>
>>> Fixes: ebaee6409702 ("trace: simplify trace point headers")
>>> Cc: david.marchand@redhat.com
>>> ---
>>> lib/librte_eal/include/rte_trace_point.h | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/lib/librte_eal/include/rte_trace_point.h
>>> b/lib/librte_eal/include/rte_trace_point.h
>>> index b45171275..875de195a 100644
>>> --- a/lib/librte_eal/include/rte_trace_point.h
>>> +++ b/lib/librte_eal/include/rte_trace_point.h
>>> @@ -300,13 +300,13 @@ RTE_DECLARE_PER_LCORE(void *, trace_mem);
>>> static __rte_always_inline void *  __rte_trace_mem_get(uint64_t in)  {
>>> -	struct __rte_trace_header *trace = RTE_PER_LCORE(trace_mem);
>>> +	struct __rte_trace_header *trace = (struct __rte_trace_header
>>> +*)RTE_PER_LCORE(trace_mem);
>>> 	const uint16_t sz = in & __RTE_TRACE_FIELD_SIZE_MASK;
>>>
>>> 	/* Trace memory is not initialized for this thread */
>>> 	if (unlikely(trace == NULL)) {
>>> 		__rte_trace_mem_per_thread_alloc();
>>> -		trace = RTE_PER_LCORE(trace_mem);
>>> +		trace = (struct __rte_trace_header *)
>>> RTE_PER_LCORE(trace_mem);
>>> 		if (unlikely(trace == NULL))
>>> 			return NULL;
>>> 	}
>>> --
>>> 2.17.1