Re: [patch 2/2] perf jit: remove some no-op error handling

From: Stephane Eranian
Date: Sat Jul 16 2016 - 12:25:52 EST


On Fri, Jul 15, 2016 at 3:27 PM, Arnaldo Carvalho de Melo
<acme@xxxxxxxxxx> wrote:
> Em Sat, Jul 16, 2016 at 12:08:36AM +0300, Dan Carpenter escreveu:
>> info.e_machine is a uint16_t so m is never less than zero. It looks
>> like this was maybe left over code from earlier versions so I've just
>> removed it.
>
> Yeah, it sure looks like that, applying, thanks,
>
Thanks for cleaning this up.

> - Arnaldo
>
>> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>>
>> diff --git a/tools/perf/jvmti/jvmti_agent.c b/tools/perf/jvmti/jvmti_agent.c
>> index 91bf333..55daeff 100644
>> --- a/tools/perf/jvmti/jvmti_agent.c
>> +++ b/tools/perf/jvmti/jvmti_agent.c
>> @@ -59,7 +59,6 @@ static int get_e_machine(struct jitheader *hdr)
>> ssize_t sret;
>> char id[16];
>> int fd, ret = -1;
>> - int m = -1;
>> struct {
>> uint16_t e_type;
>> uint16_t e_machine;
>> @@ -81,11 +80,7 @@ static int get_e_machine(struct jitheader *hdr)
>> if (sret != sizeof(info))
>> goto error;
>>
>> - m = info.e_machine;
>> - if (m < 0)
>> - m = 0; /* ELF EM_NONE */
>> -
>> - hdr->elf_mach = m;
>> + hdr->elf_mach = info.e_machine;
>> ret = 0;
>> error:
>> close(fd);