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Diffstat (limited to 'drivers/net/ppp_async.c')
-rw-r--r--drivers/net/ppp_async.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ppp_async.c b/drivers/net/ppp_async.c
index aa6540b39466..23659fd7c3a6 100644
--- a/drivers/net/ppp_async.c
+++ b/drivers/net/ppp_async.c
@@ -30,6 +30,7 @@
#include <linux/ppp_channel.h>
#include <linux/spinlock.h>
#include <linux/init.h>
+#include <linux/jiffies.h>
#include <asm/uaccess.h>
#include <asm/string.h>
@@ -570,7 +571,7 @@ ppp_async_encode(struct asyncppp *ap)
* character if necessary.
*/
if (islcp || flag_time == 0
- || jiffies - ap->last_xmit >= flag_time)
+ || time_after_eq(jiffies, ap->last_xmit + flag_time))
*buf++ = PPP_FLAG;
ap->last_xmit = jiffies;
fcs = PPP_INITFCS;
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