The functions time_before, time_before_eq, time_after, and time_after_eq are more robust for comparing jiffies against other values.
A simplified version of the Coccinelle semantic patch making this change is as follows: @change@ expression E1,E2; @@ - jiffies - E1 < E2 + time_before(jiffies, E1+E2) Signed-off-by: Himangi Saraogi <[email protected]> Acked-by: Julia Lawall <[email protected]> --- net/ipv4/ipconfig.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 5bbef4f..648fa14 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -262,7 +262,8 @@ static int __init ic_open_devs(void) /* wait for a carrier on at least one device */ start = jiffies; next_msg = start + msecs_to_jiffies(CONF_CARRIER_TIMEOUT/12); - while (jiffies - start < msecs_to_jiffies(CONF_CARRIER_TIMEOUT)) { + while (time_before(jiffies, start + + msecs_to_jiffies(CONF_CARRIER_TIMEOUT))) { int wait, elapsed; for_each_netdev(&init_net, dev) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
