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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 /include/net
parent778e6398d32590eaf2333706318cbcd04dbe50b7 (diff)
[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 'include/net')
-rw-r--r--include/net/irda/irlan_common.h10
-rw-r--r--include/net/irda/irlap_frame.h31
-rw-r--r--include/net/irda/irlmp.h2
3 files changed, 39 insertions, 4 deletions
diff --git a/include/net/irda/irlan_common.h b/include/net/irda/irlan_common.h
index 1c73bdbc3eb..9592c374b41 100644
--- a/include/net/irda/irlan_common.h
+++ b/include/net/irda/irlan_common.h
@@ -98,7 +98,15 @@
#define IRLAN_SHORT 1
#define IRLAN_ARRAY 2
-#define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER+LAP_MAX_HEADER)
+/* IrLAN sits on top if IrTTP */
+#define IRLAN_MAX_HEADER (TTP_HEADER+LMP_HEADER)
+/* 1 byte for the command code and 1 byte for the parameter count */
+#define IRLAN_CMD_HEADER 2
+
+#define IRLAN_STRING_PARAMETER_LEN(name, value) (1 + strlen((name)) + 2 \
+ + strlen ((value)))
+#define IRLAN_BYTE_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 1)
+#define IRLAN_SHORT_PARAMETER_LEN(name) (1 + strlen((name)) + 2 + 2)
/*
* IrLAN client
diff --git a/include/net/irda/irlap_frame.h b/include/net/irda/irlap_frame.h
index 3452ae257c8..9dd54a5002b 100644
--- a/include/net/irda/irlap_frame.h
+++ b/include/net/irda/irlap_frame.h
@@ -74,6 +74,19 @@ struct discovery_t;
#define PF_BIT 0x10 /* Poll/final bit */
+/* Some IrLAP field lengths */
+/*
+ * Only baud rate triplet is 4 bytes (PV can be 2 bytes).
+ * All others params (7) are 3 bytes, so that's 7*3 + 1*4 bytes.
+ */
+#define IRLAP_NEGOCIATION_PARAMS_LEN 25
+#define IRLAP_DISCOVERY_INFO_LEN 32
+
+struct disc_frame {
+ __u8 caddr; /* Connection address */
+ __u8 control;
+} IRDA_PACK;
+
struct xid_frame {
__u8 caddr; /* Connection address */
__u8 control;
@@ -95,11 +108,25 @@ struct test_frame {
struct ua_frame {
__u8 caddr;
__u8 control;
-
__u32 saddr; /* Source device address */
__u32 daddr; /* Dest device address */
} IRDA_PACK;
-
+
+struct dm_frame {
+ __u8 caddr; /* Connection address */
+ __u8 control;
+} IRDA_PACK;
+
+struct rd_frame {
+ __u8 caddr; /* Connection address */
+ __u8 control;
+} IRDA_PACK;
+
+struct rr_frame {
+ __u8 caddr; /* Connection address */
+ __u8 control;
+} IRDA_PACK;
+
struct i_frame {
__u8 caddr;
__u8 control;
diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h
index 11ecfa58a64..e212b9bc250 100644
--- a/include/net/irda/irlmp.h
+++ b/include/net/irda/irlmp.h
@@ -48,7 +48,7 @@
#define DEV_ADDR_ANY 0xffffffff
#define LMP_HEADER 2 /* Dest LSAP + Source LSAP */
-#define LMP_CONTROL_HEADER 4
+#define LMP_CONTROL_HEADER 4 /* LMP_HEADER + opcode + parameter */
#define LMP_PID_HEADER 1 /* Used by Ultra */
#define LMP_MAX_HEADER (LMP_CONTROL_HEADER+LAP_MAX_HEADER)