[AX25]: Make ax2asc thread-proof
Ax2asc was still using a static buffer for all invocations which isn't
exactly SMP-safe. Change ax2asc to take an additional result buffer as
the argument. Change all callers to provide such a buffer.
Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index c288526..26b77d9 100644
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -298,6 +298,8 @@
static int ax25_rt_seq_show(struct seq_file *seq, void *v)
{
+ char buf[11];
+
if (v == SEQ_START_TOKEN)
seq_puts(seq, "callsign dev mode digipeaters\n");
else {
@@ -308,7 +310,7 @@
if (ax25cmp(&ax25_rt->callsign, &null_ax25_address) == 0)
callsign = "default";
else
- callsign = ax2asc(&ax25_rt->callsign);
+ callsign = ax2asc(buf, &ax25_rt->callsign);
seq_printf(seq, "%-9s %-4s",
callsign,
@@ -328,7 +330,8 @@
if (ax25_rt->digipeat != NULL)
for (i = 0; i < ax25_rt->digipeat->ndigi; i++)
- seq_printf(seq, " %s", ax2asc(&ax25_rt->digipeat->calls[i]));
+ seq_printf(seq, " %s",
+ ax2asc(buf, &ax25_rt->digipeat->calls[i]));
seq_puts(seq, "\n");
}
