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authorSamuel Ortiz <samuel@sortiz.org>2006-09-27 20:06:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-28 18:02:48 -0700
commit1b0fee7d68f234be6b270cda51d9fcb71bebd780 (patch)
tree11e734d80ebaf2f0a053f912bfc59068c33ef4aa /net/irda
parent778e6398d32590eaf2333706318cbcd04dbe50b7 (diff)
downloadlinux-1b0fee7d68f234be6b270cda51d9fcb71bebd780.tar.gz
[IrDA]: Memory allocations cleanups
This patch replaces the bunch of arbitrary 64 and 128 bytes alloc_skb() calls with more accurate allocation sizes. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/irda')
-rw-r--r--net/irda/af_irda.c3
-rw-r--r--net/irda/ircomm/ircomm_lmp.c4
-rw-r--r--net/irda/iriap.c9
-rw-r--r--net/irda/iriap_event.c2
-rw-r--r--net/irda/irlan/irlan_common.c46
-rw-r--r--net/irda/irlan/irlan_provider.c12
-rw-r--r--net/irda/irlap_frame.c59
-rw-r--r--net/irda/irlmp.c2
-rw-r--r--net/irda/irttp.c14
9 files changed, 97 insertions, 54 deletions
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 7b7cd5bd2a0..7e1aea89ef0 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -309,7 +309,8 @@ static void irda_connect_response(struct irda_sock *self)
IRDA_ASSERT(self != NULL, return;);
- skb = alloc_skb(64, GFP_ATOMIC);
+ skb = alloc_skb(TTP_MAX_HEADER + TTP_SAR_HEADER,
+ GFP_ATOMIC);
if (skb == NULL) {
IRDA_DEBUG(0, "%s() Unable to allocate sk_buff!\n",
__FUNCTION__);
diff --git a/net/irda/ircomm/ircomm_lmp.c b/net/irda/ircomm/ircomm_lmp.c
index 959874b6451..c8e0d89ee11 100644
--- a/net/irda/ircomm/ircomm_lmp.c
+++ b/net/irda/ircomm/ircomm_lmp.c
@@ -81,7 +81,7 @@ static int ircomm_lmp_connect_response(struct ircomm_cb *self,
/* Any userdata supplied? */
if (userdata == NULL) {
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
@@ -115,7 +115,7 @@ static int ircomm_lmp_disconnect_request(struct ircomm_cb *self,
IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
if (!userdata) {
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
diff --git a/net/irda/iriap.c b/net/irda/iriap.c
index 61128aa05b4..415cf4eec23 100644
--- a/net/irda/iriap.c
+++ b/net/irda/iriap.c
@@ -345,10 +345,11 @@ static void iriap_disconnect_request(struct iriap_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IAS_MAGIC, return;);
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (tx_skb == NULL) {
- IRDA_DEBUG(0, "%s(), Could not allocate an sk_buff of length %d\n",
- __FUNCTION__, 64);
+ IRDA_DEBUG(0,
+ "%s(), Could not allocate an sk_buff of length %d\n",
+ __FUNCTION__, LMP_MAX_HEADER);
return;
}
@@ -701,7 +702,7 @@ void iriap_send_ack(struct iriap_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IAS_MAGIC, return;);
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER + 1, GFP_ATOMIC);
if (!tx_skb)
return;
diff --git a/net/irda/iriap_event.c b/net/irda/iriap_event.c
index da17395df05..99b18dc7a0b 100644
--- a/net/irda/iriap_event.c
+++ b/net/irda/iriap_event.c
@@ -365,7 +365,7 @@ static void state_r_disconnect(struct iriap_cb *self, IRIAP_EVENT event,
switch (event) {
case IAP_LM_CONNECT_INDICATION:
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (tx_skb == NULL) {
IRDA_WARNING("%s: unable to malloc!\n", __FUNCTION__);
return;
diff --git a/net/irda/irlan/irlan_common.c b/net/irda/irlan/irlan_common.c
index 7dd0a2fe1d2..9b962f24771 100644
--- a/net/irda/irlan/irlan_common.c
+++ b/net/irda/irlan/irlan_common.c
@@ -636,7 +636,8 @@ void irlan_get_provider_info(struct irlan_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(64, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER,
+ GFP_ATOMIC);
if (!skb)
return;
@@ -668,7 +669,10 @@ void irlan_open_data_channel(struct irlan_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(64, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_STRING_PARAMETER_LEN("MEDIA", "802.3") +
+ IRLAN_STRING_PARAMETER_LEN("ACCESS_TYPE", "DIRECT"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -704,7 +708,9 @@ void irlan_close_data_channel(struct irlan_cb *self)
if (self->client.tsap_ctrl == NULL)
return;
- skb = alloc_skb(64, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_BYTE_PARAMETER_LEN("DATA_CHAN"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -715,7 +721,7 @@ void irlan_close_data_channel(struct irlan_cb *self)
/* Build frame */
frame[0] = CMD_CLOSE_DATA_CHAN;
- frame[1] = 0x01; /* Two parameters */
+ frame[1] = 0x01; /* One parameter */
irlan_insert_byte_param(skb, "DATA_CHAN", self->dtsap_sel_data);
@@ -739,7 +745,11 @@ static void irlan_open_unicast_addr(struct irlan_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(128, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_BYTE_PARAMETER_LEN("DATA_CHAN") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "DIRECTED") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_MODE", "FILTER"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -777,7 +787,12 @@ void irlan_set_broadcast_filter(struct irlan_cb *self, int status)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(128, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_BYTE_PARAMETER_LEN("DATA_CHAN") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "BROADCAST") +
+ /* We may waste one byte here...*/
+ IRLAN_STRING_PARAMETER_LEN("FILTER_MODE", "FILTER"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -816,7 +831,12 @@ void irlan_set_multicast_filter(struct irlan_cb *self, int status)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(128, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_BYTE_PARAMETER_LEN("DATA_CHAN") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "MULTICAST") +
+ /* We may waste one byte here...*/
+ IRLAN_STRING_PARAMETER_LEN("FILTER_MODE", "NONE"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -856,7 +876,12 @@ static void irlan_get_unicast_addr(struct irlan_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(128, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_BYTE_PARAMETER_LEN("DATA_CHAN") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "DIRECTED") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_OPERATION",
+ "DYNAMIC"),
+ GFP_ATOMIC);
if (!skb)
return;
@@ -891,7 +916,10 @@ void irlan_get_media_char(struct irlan_cb *self)
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(64, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ IRLAN_STRING_PARAMETER_LEN("MEDIA", "802.3"),
+ GFP_ATOMIC);
+
if (!skb)
return;
diff --git a/net/irda/irlan/irlan_provider.c b/net/irda/irlan/irlan_provider.c
index 9c0df86044d..58efde91966 100644
--- a/net/irda/irlan/irlan_provider.c
+++ b/net/irda/irlan/irlan_provider.c
@@ -296,7 +296,14 @@ void irlan_provider_send_reply(struct irlan_cb *self, int command,
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
- skb = alloc_skb(128, GFP_ATOMIC);
+ skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
+ /* Bigger param length comes from CMD_GET_MEDIA_CHAR */
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "DIRECTED") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "BORADCAST") +
+ IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "MULTICAST") +
+ IRLAN_STRING_PARAMETER_LEN("ACCESS_TYPE", "HOSTED"),
+ GFP_ATOMIC);
+
if (!skb)
return;
@@ -354,8 +361,7 @@ void irlan_provider_send_reply(struct irlan_cb *self, int command,
} else
skb->data[1] = 0x02; /* 2 parameters */
irlan_insert_byte_param(skb, "DATA_CHAN", self->stsap_sel_data);
- irlan_insert_array_param(skb, "RECONNECT_KEY", "LINUX RULES!",
- 12);
+ irlan_insert_string_param(skb, "RECONNECT_KEY", "LINUX RULES!");
break;
case CMD_FILTER_OPERATION:
irlan_filter_request(self, skb);
diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
index ccb983bf0f4..dba349c832d 100644
--- a/net/irda/irlap_frame.c
+++ b/net/irda/irlap_frame.c
@@ -117,7 +117,9 @@ void irlap_send_snrm_frame(struct irlap_cb *self, struct qos_info *qos)
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
/* Allocate frame */
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct snrm_frame) +
+ IRLAP_NEGOCIATION_PARAMS_LEN,
+ GFP_ATOMIC);
if (!tx_skb)
return;
@@ -136,7 +138,7 @@ void irlap_send_snrm_frame(struct irlap_cb *self, struct qos_info *qos)
* If we are establishing a connection then insert QoS paramerters
*/
if (qos) {
- skb_put(tx_skb, 9); /* 21 left */
+ skb_put(tx_skb, 9); /* 25 left */
frame->saddr = cpu_to_le32(self->saddr);
frame->daddr = cpu_to_le32(self->daddr);
@@ -210,7 +212,9 @@ void irlap_send_ua_response_frame(struct irlap_cb *self, struct qos_info *qos)
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
/* Allocate frame */
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct ua_frame) +
+ IRLAP_NEGOCIATION_PARAMS_LEN,
+ GFP_ATOMIC);
if (!tx_skb)
return;
@@ -245,23 +249,23 @@ void irlap_send_ua_response_frame(struct irlap_cb *self, struct qos_info *qos)
void irlap_send_dm_frame( struct irlap_cb *self)
{
struct sk_buff *tx_skb = NULL;
- __u8 *frame;
+ struct dm_frame *frame;
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
- tx_skb = alloc_skb(32, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct dm_frame), GFP_ATOMIC);
if (!tx_skb)
return;
- frame = skb_put(tx_skb, 2);
+ frame = (struct dm_frame *)skb_put(tx_skb, 2);
if (self->state == LAP_NDM)
- frame[0] = CBROADCAST;
+ frame->caddr = CBROADCAST;
else
- frame[0] = self->caddr;
+ frame->caddr = self->caddr;
- frame[1] = DM_RSP | PF_BIT;
+ frame->control = DM_RSP | PF_BIT;
irlap_queue_xmit(self, tx_skb);
}
@@ -275,21 +279,21 @@ void irlap_send_dm_frame( struct irlap_cb *self)
void irlap_send_disc_frame(struct irlap_cb *self)
{
struct sk_buff *tx_skb = NULL;
- __u8 *frame;
+ struct disc_frame *frame;
IRDA_DEBUG(3, "%s()\n", __FUNCTION__);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
- tx_skb = alloc_skb(16, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct disc_frame), GFP_ATOMIC);
if (!tx_skb)
return;
- frame = skb_put(tx_skb, 2);
+ frame = (struct disc_frame *)skb_put(tx_skb, 2);
- frame[0] = self->caddr | CMD_FRAME;
- frame[1] = DISC_CMD | PF_BIT;
+ frame->caddr = self->caddr | CMD_FRAME;
+ frame->control = DISC_CMD | PF_BIT;
irlap_queue_xmit(self, tx_skb);
}
@@ -315,7 +319,8 @@ void irlap_send_discovery_xid_frame(struct irlap_cb *self, int S, __u8 s,
IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
IRDA_ASSERT(discovery != NULL, return;);
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct xid_frame) + IRLAP_DISCOVERY_INFO_LEN,
+ GFP_ATOMIC);
if (!tx_skb)
return;
@@ -573,18 +578,18 @@ static void irlap_recv_discovery_xid_cmd(struct irlap_cb *self,
void irlap_send_rr_frame(struct irlap_cb *self, int command)
{
struct sk_buff *tx_skb;
- __u8 *frame;
+ struct rr_frame *frame;
- tx_skb = alloc_skb(16, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct rr_frame), GFP_ATOMIC);
if (!tx_skb)
return;
- frame = skb_put(tx_skb, 2);
+ frame = (struct rr_frame *)skb_put(tx_skb, 2);
- frame[0] = self->caddr;
- frame[0] |= (command) ? CMD_FRAME : 0;
+ frame->caddr = self->caddr;
+ frame->caddr |= (command) ? CMD_FRAME : 0;
- frame[1] = RR | PF_BIT | (self->vr << 5);
+ frame->control = RR | PF_BIT | (self->vr << 5);
irlap_queue_xmit(self, tx_skb);
}
@@ -598,16 +603,16 @@ void irlap_send_rr_frame(struct irlap_cb *self, int command)
void irlap_send_rd_frame(struct irlap_cb *self)
{
struct sk_buff *tx_skb;
- __u8 *frame;
+ struct rd_frame *frame;
- tx_skb = alloc_skb(16, GFP_ATOMIC);
+ tx_skb = alloc_skb(sizeof(struct rd_frame), GFP_ATOMIC);
if (!tx_skb)
return;
- frame = skb_put(tx_skb, 2);
+ frame = (struct rd_frame *)skb_put(tx_skb, 2);
- frame[0] = self->caddr;
- frame[1] = RD_RSP | PF_BIT;
+ frame->caddr = self->caddr;
+ frame->caddr = RD_RSP | PF_BIT;
irlap_queue_xmit(self, tx_skb);
}
@@ -1214,7 +1219,7 @@ void irlap_send_test_frame(struct irlap_cb *self, __u8 caddr, __u32 daddr,
struct test_frame *frame;
__u8 *info;
- tx_skb = alloc_skb(cmd->len+sizeof(struct test_frame), GFP_ATOMIC);
+ tx_skb = alloc_skb(cmd->len + sizeof(struct test_frame), GFP_ATOMIC);
if (!tx_skb)
return;
diff --git a/net/irda/irlmp.c b/net/irda/irlmp.c
index c440913dee1..5073261b9d0 100644
--- a/net/irda/irlmp.c
+++ b/net/irda/irlmp.c
@@ -392,7 +392,7 @@ int irlmp_connect_request(struct lsap_cb *self, __u8 dlsap_sel,
/* Any userdata? */
if (tx_skb == NULL) {
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 42acf1cde73..3c2e70b77df 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -804,12 +804,12 @@ static inline void irttp_give_credit(struct tsap_cb *self)
self->send_credit, self->avail_credit, self->remote_credit);
/* Give credit to peer */
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(TTP_MAX_HEADER, GFP_ATOMIC);
if (!tx_skb)
return;
/* Reserve space for LMP, and LAP header */
- skb_reserve(tx_skb, self->max_header_size);
+ skb_reserve(tx_skb, LMP_MAX_HEADER);
/*
* Since we can transmit and receive frames concurrently,
@@ -1093,7 +1093,8 @@ int irttp_connect_request(struct tsap_cb *self, __u8 dtsap_sel,
/* Any userdata supplied? */
if (userdata == NULL) {
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(TTP_MAX_HEADER + TTP_SAR_HEADER,
+ GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
@@ -1341,7 +1342,8 @@ int irttp_connect_response(struct tsap_cb *self, __u32 max_sdu_size,
/* Any userdata supplied? */
if (userdata == NULL) {
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(TTP_MAX_HEADER + TTP_SAR_HEADER,
+ GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
@@ -1540,14 +1542,14 @@ int irttp_disconnect_request(struct tsap_cb *self, struct sk_buff *userdata,
if (!userdata) {
struct sk_buff *tx_skb;
- tx_skb = alloc_skb(64, GFP_ATOMIC);
+ tx_skb = alloc_skb(LMP_MAX_HEADER, GFP_ATOMIC);
if (!tx_skb)
return -ENOMEM;
/*
* Reserve space for MUX and LAP header
*/
- skb_reserve(tx_skb, TTP_MAX_HEADER);
+ skb_reserve(tx_skb, LMP_MAX_HEADER);
userdata = tx_skb;
}