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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)
downloadlinux-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 dca179daf415..0164a155b8c4 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;
 }
 
 /*