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[IrDA]: Memory allocations cleanups

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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>
This commit is contained in:
Samuel Ortiz
2006-09-27 20:06:44 -07:00
committed by David S. Miller
parent 778e6398d3
commit 1b0fee7d68
12 changed files with 136 additions and 58 deletions
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10
include/net/irda/irlan_common.h
View File

@@ -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

31
include/net/irda/irlap_frame.h
View File

@@ -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;

2
include/net/irda/irlmp.h
View File

@@ -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)