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authorKees Cook <keescook@chromium.org>2013-09-14 01:52:04 +0400
committerDavid S. Miller <davem@davemloft.net>2013-09-14 04:02:50 +0400
commit35a4a5733b0a8290de39558b82896ab795b108a7 (patch)
treea4a1d7cc33205a1acb098cdba96e319ada715be6 /drivers/isdn/hisax/l3_1tr6.c
parenta2a69f0b35762410c4194f9827354310f68470be (diff)
downloadlinux-35a4a5733b0a8290de39558b82896ab795b108a7.tar.xz
isdn: clean up debug format string usage
Avoid unneeded local string buffers for constructing debug output. Also cleans up debug calls that contain a single parameter so that they cannot be accidentally parsed as format strings. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/hisax/l3_1tr6.c')
-rw-r--r--drivers/isdn/hisax/l3_1tr6.c50
1 files changed, 18 insertions, 32 deletions
diff --git a/drivers/isdn/hisax/l3_1tr6.c b/drivers/isdn/hisax/l3_1tr6.c
index 4c1bca5caa1d..875402e76d0a 100644
--- a/drivers/isdn/hisax/l3_1tr6.c
+++ b/drivers/isdn/hisax/l3_1tr6.c
@@ -63,7 +63,7 @@ l3_1tr6_error(struct l3_process *pc, u_char *msg, struct sk_buff *skb)
{
dev_kfree_skb(skb);
if (pc->st->l3.debug & L3_DEB_WARN)
- l3_debug(pc->st, msg);
+ l3_debug(pc->st, "%s", msg);
l3_1tr6_release_req(pc, 0, NULL);
}
@@ -161,7 +161,6 @@ l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg)
{
u_char *p;
int bcfound = 0;
- char tmp[80];
struct sk_buff *skb = arg;
/* Channel Identification */
@@ -214,10 +213,9 @@ l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg)
/* Signal all services, linklevel takes care of Service-Indicator */
if (bcfound) {
if ((pc->para.setup.si1 != 7) && (pc->st->l3.debug & L3_DEB_WARN)) {
- sprintf(tmp, "non-digital call: %s -> %s",
+ l3_debug(pc->st, "non-digital call: %s -> %s",
pc->para.setup.phone,
pc->para.setup.eazmsn);
- l3_debug(pc->st, tmp);
}
newl3state(pc, 6);
pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc);
@@ -301,7 +299,7 @@ l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg)
{
u_char *p;
int i, tmpcharge = 0;
- char a_charge[8], tmp[32];
+ char a_charge[8];
struct sk_buff *skb = arg;
p = skb->data;
@@ -316,8 +314,8 @@ l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg)
pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc);
}
if (pc->st->l3.debug & L3_DEB_CHARGE) {
- sprintf(tmp, "charging info %d", pc->para.chargeinfo);
- l3_debug(pc->st, tmp);
+ l3_debug(pc->st, "charging info %d",
+ pc->para.chargeinfo);
}
} else if (pc->st->l3.debug & L3_DEB_CHARGE)
l3_debug(pc->st, "charging info not found");
@@ -399,7 +397,7 @@ l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg)
struct sk_buff *skb = arg;
u_char *p;
int i, tmpcharge = 0;
- char a_charge[8], tmp[32];
+ char a_charge[8];
StopAllL3Timer(pc);
p = skb->data;
@@ -414,8 +412,8 @@ l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg)
pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc);
}
if (pc->st->l3.debug & L3_DEB_CHARGE) {
- sprintf(tmp, "charging info %d", pc->para.chargeinfo);
- l3_debug(pc->st, tmp);
+ l3_debug(pc->st, "charging info %d",
+ pc->para.chargeinfo);
}
} else if (pc->st->l3.debug & L3_DEB_CHARGE)
l3_debug(pc->st, "charging info not found");
@@ -746,7 +744,6 @@ up1tr6(struct PStack *st, int pr, void *arg)
int i, mt, cr;
struct l3_process *proc;
struct sk_buff *skb = arg;
- char tmp[80];
switch (pr) {
case (DL_DATA | INDICATION):
@@ -762,26 +759,23 @@ up1tr6(struct PStack *st, int pr, void *arg)
}
if (skb->len < 4) {
if (st->l3.debug & L3_DEB_PROTERR) {
- sprintf(tmp, "up1tr6 len only %d", skb->len);
- l3_debug(st, tmp);
+ l3_debug(st, "up1tr6 len only %d", skb->len);
}
dev_kfree_skb(skb);
return;
}
if ((skb->data[0] & 0xfe) != PROTO_DIS_N0) {
if (st->l3.debug & L3_DEB_PROTERR) {
- sprintf(tmp, "up1tr6%sunexpected discriminator %x message len %d",
+ l3_debug(st, "up1tr6%sunexpected discriminator %x message len %d",
(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
skb->data[0], skb->len);
- l3_debug(st, tmp);
}
dev_kfree_skb(skb);
return;
}
if (skb->data[1] != 1) {
if (st->l3.debug & L3_DEB_PROTERR) {
- sprintf(tmp, "up1tr6 CR len not 1");
- l3_debug(st, tmp);
+ l3_debug(st, "up1tr6 CR len not 1");
}
dev_kfree_skb(skb);
return;
@@ -791,9 +785,8 @@ up1tr6(struct PStack *st, int pr, void *arg)
if (skb->data[0] == PROTO_DIS_N0) {
dev_kfree_skb(skb);
if (st->l3.debug & L3_DEB_STATE) {
- sprintf(tmp, "up1tr6%s N0 mt %x unhandled",
+ l3_debug(st, "up1tr6%s N0 mt %x unhandled",
(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", mt);
- l3_debug(st, tmp);
}
} else if (skb->data[0] == PROTO_DIS_N1) {
if (!(proc = getl3proc(st, cr))) {
@@ -801,8 +794,7 @@ up1tr6(struct PStack *st, int pr, void *arg)
if (cr < 128) {
if (!(proc = new_l3_process(st, cr))) {
if (st->l3.debug & L3_DEB_PROTERR) {
- sprintf(tmp, "up1tr6 no roc mem");
- l3_debug(st, tmp);
+ l3_debug(st, "up1tr6 no roc mem");
}
dev_kfree_skb(skb);
return;
@@ -821,8 +813,7 @@ up1tr6(struct PStack *st, int pr, void *arg)
} else {
if (!(proc = new_l3_process(st, cr))) {
if (st->l3.debug & L3_DEB_PROTERR) {
- sprintf(tmp, "up1tr6 no roc mem");
- l3_debug(st, tmp);
+ l3_debug(st, "up1tr6 no roc mem");
}
dev_kfree_skb(skb);
return;
@@ -837,18 +828,16 @@ up1tr6(struct PStack *st, int pr, void *arg)
if (i == ARRAY_SIZE(datastln1)) {
dev_kfree_skb(skb);
if (st->l3.debug & L3_DEB_STATE) {
- sprintf(tmp, "up1tr6%sstate %d mt %x unhandled",
+ l3_debug(st, "up1tr6%sstate %d mt %x unhandled",
(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
proc->state, mt);
- l3_debug(st, tmp);
}
return;
} else {
if (st->l3.debug & L3_DEB_STATE) {
- sprintf(tmp, "up1tr6%sstate %d mt %x",
+ l3_debug(st, "up1tr6%sstate %d mt %x",
(pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ",
proc->state, mt);
- l3_debug(st, tmp);
}
datastln1[i].rout(proc, pr, skb);
}
@@ -861,7 +850,6 @@ down1tr6(struct PStack *st, int pr, void *arg)
int i, cr;
struct l3_process *proc;
struct Channel *chan;
- char tmp[80];
if ((DL_ESTABLISH | REQUEST) == pr) {
l3_msg(st, pr, NULL);
@@ -888,15 +876,13 @@ down1tr6(struct PStack *st, int pr, void *arg)
break;
if (i == ARRAY_SIZE(downstl)) {
if (st->l3.debug & L3_DEB_STATE) {
- sprintf(tmp, "down1tr6 state %d prim %d unhandled",
+ l3_debug(st, "down1tr6 state %d prim %d unhandled",
proc->state, pr);
- l3_debug(st, tmp);
}
} else {
if (st->l3.debug & L3_DEB_STATE) {
- sprintf(tmp, "down1tr6 state %d prim %d",
+ l3_debug(st, "down1tr6 state %d prim %d",
proc->state, pr);
- l3_debug(st, tmp);
}
downstl[i].rout(proc, pr, arg);
}