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platform: x86: throw away custom methods 

In 2.6.35 the hex_to_bin() was introduced.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: platform-driver-x86@vger.kernel.org
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Andy Shevchenko 2010-09-11 16:31:02 +03:00 committed by Matthew Garrett
parent 91e5d284a7
commit 392bd8b584
1 changed files with 6 additions and 18 deletions
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24
drivers/platform/x86/wmi.c
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@ -128,30 +128,18 @@ static struct acpi_driver acpi_wmi_driver = {
*/ */
static int wmi_parse_hexbyte(const u8 *src) static int wmi_parse_hexbyte(const u8 *src)
{ {
unsigned int x; /* For correct wrapping */
int h; int h;
int value;
/* high part */ /* high part */
x = src[0]; h = value = hex_to_bin(src[0]);
if (x - '0' <= '9' - '0') { if (value < 0)
h = x - '0';
} else if (x - 'a' <= 'f' - 'a') {
h = x - 'a' + 10;
} else if (x - 'A' <= 'F' - 'A') {
h = x - 'A' + 10;
} else {
return -1; return -1;
}
h <<= 4;
/* low part */ /* low part */
x = src[1]; value = hex_to_bin(src[1]);
if (x - '0' <= '9' - '0') if (value >= 0)
return h | (x - '0'); return (h << 4) | value;
if (x - 'a' <= 'f' - 'a')
return h | (x - 'a' + 10);
if (x - 'A' <= 'F' - 'A')
return h | (x - 'A' + 10);
return -1; return -1;
} }