diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2005-09-06 15:49:39 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-09-06 15:49:39 -0700 |
| commit | f75268cd6cbd24e6c70ff1390f4de5d0bb618539 (patch) | |
| tree | ade569781c444bd7f0d648a38cab205d7624e286 /net/ax25 | |
| parent | f2c383988d68c91a7d474b7cf26c0a2df49bbafe (diff) | |
| download | lwn-f75268cd6cbd24e6c70ff1390f4de5d0bb618539.tar.gz lwn-f75268cd6cbd24e6c70ff1390f4de5d0bb618539.zip | |
[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>
Diffstat (limited to 'net/ax25')
| -rw-r--r-- | net/ax25/af_ax25.c | 7 | ||||
| -rw-r--r-- | net/ax25/ax25_addr.c | 3 | ||||
| -rw-r--r-- | net/ax25/ax25_route.c | 7 | ||||
| -rw-r--r-- | net/ax25/ax25_uid.c | 4 |
4 files changed, 13 insertions, 8 deletions
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index ea43dfb774e2..ed705ddad56b 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1874,6 +1874,7 @@ static void ax25_info_stop(struct seq_file *seq, void *v) static int ax25_info_show(struct seq_file *seq, void *v) { ax25_cb *ax25 = v; + char buf[11]; int k; @@ -1885,13 +1886,13 @@ static int ax25_info_show(struct seq_file *seq, void *v) seq_printf(seq, "%8.8lx %s %s%s ", (long) ax25, ax25->ax25_dev == NULL? "???" : ax25->ax25_dev->dev->name, - ax2asc(&ax25->source_addr), + ax2asc(buf, &ax25->source_addr), ax25->iamdigi? "*":""); - seq_printf(seq, "%s", ax2asc(&ax25->dest_addr)); + seq_printf(seq, "%s", ax2asc(buf, &ax25->dest_addr)); for (k=0; (ax25->digipeat != NULL) && (k < ax25->digipeat->ndigi); k++) { seq_printf(seq, ",%s%s", - ax2asc(&ax25->digipeat->calls[k]), + ax2asc(buf, &ax25->digipeat->calls[k]), ax25->digipeat->repeated[k]? "*":""); } diff --git a/net/ax25/ax25_addr.c b/net/ax25/ax25_addr.c index f4fa6dfb846e..dca179daf415 100644 --- a/net/ax25/ax25_addr.c +++ b/net/ax25/ax25_addr.c @@ -36,9 +36,8 @@ ax25_address null_ax25_address = {{0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x00}}; /* * ax25 -> ascii conversion */ -char *ax2asc(ax25_address *a) +char *ax2asc(char *buf, ax25_address *a) { - static char buf[11]; char c, *s; int n; diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c index c288526da4ce..26b77d972220 100644 --- a/net/ax25/ax25_route.c +++ b/net/ax25/ax25_route.c @@ -298,6 +298,8 @@ static void ax25_rt_seq_stop(struct seq_file *seq, void *v) 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 @@ static int ax25_rt_seq_show(struct seq_file *seq, void *v) 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 @@ static int ax25_rt_seq_show(struct seq_file *seq, void *v) 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"); } diff --git a/net/ax25/ax25_uid.c b/net/ax25/ax25_uid.c index a8b3822f3ee4..d53cc8615865 100644 --- a/net/ax25/ax25_uid.c +++ b/net/ax25/ax25_uid.c @@ -168,12 +168,14 @@ static void ax25_uid_seq_stop(struct seq_file *seq, void *v) static int ax25_uid_seq_show(struct seq_file *seq, void *v) { + char buf[11]; + if (v == SEQ_START_TOKEN) seq_printf(seq, "Policy: %d\n", ax25_uid_policy); else { struct ax25_uid_assoc *pt = v; - seq_printf(seq, "%6d %s\n", pt->uid, ax2asc(&pt->call)); + seq_printf(seq, "%6d %s\n", pt->uid, ax2asc(buf, &pt->call)); } return 0; } |