[PATCH v2 1/8] staging: r8188eu: use mac_pton() in rtw_macaddr_cfg()

From: Michael Straube
Date: Mon Aug 30 2021 - 08:15:53 EST


Instead of a custom approach use mac_pton() to convert the mac
address string. With mac_pton() the driver also validates the
input now.

Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>
---
drivers/staging/r8188eu/core/rtw_ieee80211.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ieee80211.c b/drivers/staging/r8188eu/core/rtw_ieee80211.c
index b3a74198596a..205798b76cf9 100644
--- a/drivers/staging/r8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/r8188eu/core/rtw_ieee80211.c
@@ -1024,13 +1024,11 @@ void rtw_macaddr_cfg(u8 *mac_addr)
if (!mac_addr)
return;

- if (rtw_initmac) { /* Users specify the mac address */
- int jj, kk;
-
- for (jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3)
- mac[jj] = key_2char2num(rtw_initmac[kk], rtw_initmac[kk + 1]);
+ if (rtw_initmac && mac_pton(rtw_initmac, mac)) {
+ /* Users specify the mac address */
memcpy(mac_addr, mac, ETH_ALEN);
- } else { /* Use the mac address stored in the Efuse */
+ } else {
+ /* Use the mac address stored in the Efuse */
memcpy(mac, mac_addr, ETH_ALEN);
}

--
2.33.0