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wifi: wireless: avoid strlen() in cfg80211_michael_mic_failure()

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In 'cfg80211_michael_mic_failure()', avoid extra call to 'strlen()'
by using the value returned by 'sprintf()'. Compile tested only.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Link: https://msgid.link/20240110054246.371651-1-dmantipov@yandex.ru
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Dmitry Antipov 2024-01-10 08:42:06 +03:00 committed by Johannes Berg
parent 5f76499fb5
commit 7f78840cf4
1 changed files with 5 additions and 5 deletions
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10
net/wireless/mlme.c
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@ -241,12 +241,12 @@ void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
char *buf = kmalloc(128, gfp);
if (buf) {
sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
"keyid=%d %scast addr=%pM)", key_id,
key_type == NL80211_KEYTYPE_GROUP ? "broad" : "uni",
addr);
memset(&wrqu, 0, sizeof(wrqu));
wrqu.data.length = strlen(buf);
wrqu.data.length =
sprintf(buf, "MLME-MICHAELMICFAILURE."
"indication(keyid=%d %scast addr=%pM)",
key_id, key_type == NL80211_KEYTYPE_GROUP
? "broad" : "uni", addr);
wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
kfree(buf);
}