#include <linux/jiffies.h>
#include <net/lib80211.h>
-#include <net/ieee80211.h>
#include <linux/wireless.h>
+#include "ieee80211.h"
+
static const char *ieee80211_modes[] = {
"?", "a", "b", "ab", "g", "ag", "bg", "abg"
};
+static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
+{
+ unsigned long end = jiffies;
+
+ if (end >= start)
+ return jiffies_to_msecs(end - start);
+
+ return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
+}
+
#define MAX_CUSTOM_LEN 64
static char *ieee80211_translate_scan(struct ieee80211_device *ieee,
char *start, char *stop,
iwe.cmd = IWEVCUSTOM;
p = custom;
p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
- " Last beacon: %dms ago",
- jiffies_to_msecs(jiffies - network->last_scanned));
+ " Last beacon: %ums ago",
+ elapsed_jiffies_msecs(network->last_scanned));
iwe.u.data.length = p - custom;
if (iwe.u.data.length)
start = iwe_stream_add_point(info, start, stop, &iwe, custom);
time_after(network->last_scanned + ieee->scan_age, jiffies))
ev = ieee80211_translate_scan(ieee, ev, stop, network,
info);
- else
+ else {
IEEE80211_DEBUG_SCAN("Not showing network '%s ("
- "%pM)' due to age (%dms).\n",
+ "%pM)' due to age (%ums).\n",
print_ssid(ssid, network->ssid,
network->ssid_len),
network->bssid,
- jiffies_to_msecs(jiffies -
- network->
- last_scanned));
+ elapsed_jiffies_msecs(
+ network->last_scanned));
+ }
}
spin_unlock_irqrestore(&ieee->lock, flags);