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perf tools: Substitute yet another strtoull()

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Instead of home grown function let's use what library provides us.

Signed-off-by: Andriy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20180129130359.1490-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andy Shevchenko 2018-01-29 15:03:59 +02:00 committed by Arnaldo Carvalho de Melo
parent 8cc42de736
commit 6677d26c8b
1 changed files with 2 additions and 22 deletions
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24
tools/perf/util/util.c
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@ -340,35 +340,15 @@ size_t hex_width(u64 v)
return n;
}
static int hex(char ch)
{
if ((ch >= '0') && (ch <= '9'))
return ch - '0';
if ((ch >= 'a') && (ch <= 'f'))
return ch - 'a' + 10;
if ((ch >= 'A') && (ch <= 'F'))
return ch - 'A' + 10;
return -1;
}
/*
* While we find nice hex chars, build a long_val.
* Return number of chars processed.
*/
int hex2u64(const char *ptr, u64 *long_val)
{
const char *p = ptr;
*long_val = 0;
char *p;
while (*p) {
const int hex_val = hex(*p);
if (hex_val < 0)
break;
*long_val = (*long_val << 4) | hex_val;
p++;
}
*long_val = strtoull(ptr, &p, 16);
return p - ptr;
}