atm: mpoa: remove 32-bit timekeeping

net/atm/mpoa_* files use 'struct timeval' to store event
timestamps. struct timeval uses a 32-bit seconds field which will
overflow in the year 2038 and beyond. Morever, the timestamps are being
compared only to get seconds elapsed, so struct timeval which stores
a seconds and microseconds field is an overkill. This patch replaces
the use of struct timeval with time64_t to store a 64-bit seconds field.

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 4 deletions

diff --git a/net/atm/mpoa_caches.h b/net/atm/mpoa_caches.h
index 6a266669ebf4..464c4c7f8d1f 100644
--- a/net/atm/mpoa_caches.h
+++ b/net/atm/mpoa_caches.h
@@ -2,6 +2,7 @@
 #ifndef MPOA_CACHES_H
 #define MPOA_CACHES_H
 
+#include <linux/time64.h>
 #include <linux/netdevice.h>
 #include <linux/types.h>
 #include <linux/atm.h>
@@ -16,9 +17,9 @@ void atm_mpoa_init_cache(struct mpoa_client *mpc);
 typedef struct in_cache_entry {
         struct in_cache_entry *next;
         struct in_cache_entry *prev;
-        struct timeval  tv;
-        struct timeval  reply_wait;
-        struct timeval  hold_down;
+        time64_t  time;
+        time64_t  reply_wait;
+        time64_t  hold_down;
         uint32_t  packets_fwded;
         uint16_t  entry_state;
         uint32_t retry_time;
@@ -53,7 +54,7 @@ struct in_cache_ops{
 typedef struct eg_cache_entry{
         struct               eg_cache_entry *next;
         struct               eg_cache_entry *prev;
-        struct               timeval  tv;
+        time64_t             time;
         uint8_t              MPS_ctrl_ATM_addr[ATM_ESA_LEN];
         struct atm_vcc       *shortcut;
         uint32_t             packets_rcvd;