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

From Stephane Eranian <eranian@google.com>
Newsgroups linux.kernel
Subject Re: [patch 2/2] perf jit: remove some no-op error handling
Date 2016-07-16 18:30 +0200
Message-ID <rVADw-62I-17@gated-at.bofh.it> (permalink)
References <rViwV-3rh-17@gated-at.bofh.it> <rVjMn-47e-41@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Jul 15, 2016 at 3:27 PM, Arnaldo Carvalho de Melo
<acme@kernel.org> 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@oracle.com>
>>
>> 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);

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Thread

[patch 2/2] perf jit: remove some no-op error handling Dan Carpenter <dan.carpenter@oracle.com> - 2016-07-15 23:10 +0200
  Re: [patch 2/2] perf jit: remove some no-op error handling Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-07-16 00:30 +0200
    Re: [patch 2/2] perf jit: remove some no-op error handling Stephane Eranian <eranian@google.com> - 2016-07-16 18:30 +0200
  [tip:perf/core] perf jit: Remove some no-op error handling tip-bot for Dan Carpenter <tipbot@zytor.com> - 2016-07-19 09:00 +0200

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