[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>

1 files changed, 29 insertions, 2 deletions

diff --git a/include/net/irda/irlap_frame.h b/include/net/irda/irlap_frame.h
index 3452ae257c84..9dd54a5002b2 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;