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authorRalf Baechle <ralf@linux-mips.org>2005-09-08 13:40:41 -0700
committerDavid S. Miller <davem@davemloft.net>2005-09-08 13:40:41 -0700
commitbaed16a7ff5194487764db300c2753ac7409c4c5 (patch)
treea6cc8276bdd41abee85df26a894980a4de5d504c /net/ax25/ax25_addr.c
parent3a93481589dc80d9ff9082731f35031b0345442e (diff)
downloadop-kernel-dev-baed16a7ff5194487764db300c2753ac7409c4c5.zip
op-kernel-dev-baed16a7ff5194487764db300c2753ac7409c4c5.tar.gz
[AX.25]: Make asc2ax() thread-proof
Asc2ax was still using a static buffer for all invocations which isn't exactly SMP-safe. Change asc2ax to take an additional result buffer as the argument. Change all callers to provide such a buffer. This one only really is a fix for ROSE and as per recent discussions there's still much more to fix in ROSE ... Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ax25/ax25_addr.c')
-rw-r--r--net/ax25/ax25_addr.c27
1 files changed, 12 insertions, 15 deletions
diff --git a/net/ax25/ax25_addr.c b/net/ax25/ax25_addr.c
index dca179d..0164a15 100644
--- a/net/ax25/ax25_addr.c
+++ b/net/ax25/ax25_addr.c
@@ -67,37 +67,34 @@ char *ax2asc(char *buf, ax25_address *a)
/*
* ascii -> ax25 conversion
*/
-ax25_address *asc2ax(char *callsign)
+void asc2ax(ax25_address *addr, char *callsign)
{
- static ax25_address addr;
char *s;
int n;
for (s = callsign, n = 0; n < 6; n++) {
if (*s != '\0' && *s != '-')
- addr.ax25_call[n] = *s++;
+ addr->ax25_call[n] = *s++;
else
- addr.ax25_call[n] = ' ';
- addr.ax25_call[n] <<= 1;
- addr.ax25_call[n] &= 0xFE;
+ addr->ax25_call[n] = ' ';
+ addr->ax25_call[n] <<= 1;
+ addr->ax25_call[n] &= 0xFE;
}
if (*s++ == '\0') {
- addr.ax25_call[6] = 0x00;
- return &addr;
+ addr->ax25_call[6] = 0x00;
+ return;
}
- addr.ax25_call[6] = *s++ - '0';
+ addr->ax25_call[6] = *s++ - '0';
if (*s != '\0') {
- addr.ax25_call[6] *= 10;
- addr.ax25_call[6] += *s++ - '0';
+ addr->ax25_call[6] *= 10;
+ addr->ax25_call[6] += *s++ - '0';
}
- addr.ax25_call[6] <<= 1;
- addr.ax25_call[6] &= 0x1E;
-
- return &addr;
+ addr->ax25_call[6] <<= 1;
+ addr->ax25_call[6] &= 0x1E;
}
/*
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