Revision 79b00034e9dcd2b065c1665c8b42f62b6b80a9be authored by Linus Torvalds on 11 March 2022, 05:15:42 UTC, committed by Linus Torvalds on 11 March 2022, 05:15:42 UTC
Pull drm fixes from Dave Airlie: "As expected at this stage its pretty quiet, one sun4i mixer fix and one i915 display flicker fix: i915: - fix psr screen flicker sun4i: - mixer format fix" * tag 'drm-fixes-2022-03-11' of git://anongit.freedesktop.org/drm/drm: drm/sun4i: mixer: Fix P010 and P210 format numbers drm/i915/psr: Set "SF Partial Frame Enable" also on full update
net_utils.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/string.h>
#include <linux/if_ether.h>
#include <linux/ctype.h>
#include <linux/kernel.h>
bool mac_pton(const char *s, u8 *mac)
{
int i;
/* XX:XX:XX:XX:XX:XX */
if (strlen(s) < 3 * ETH_ALEN - 1)
return false;
/* Don't dirty result unless string is valid MAC. */
for (i = 0; i < ETH_ALEN; i++) {
if (!isxdigit(s[i * 3]) || !isxdigit(s[i * 3 + 1]))
return false;
if (i != ETH_ALEN - 1 && s[i * 3 + 2] != ':')
return false;
}
for (i = 0; i < ETH_ALEN; i++) {
mac[i] = (hex_to_bin(s[i * 3]) << 4) | hex_to_bin(s[i * 3 + 1]);
}
return true;
}
EXPORT_SYMBOL(mac_pton);
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