From 1b0fee7d68f234be6b270cda51d9fcb71bebd780 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Wed, 27 Sep 2006 20:06:44 -0700 Subject: [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 Signed-off-by: David S. Miller --- include/net/irda/irlan_common.h | 10 +++++++++- include/net/irda/irlap_frame.h | 31 +++++++++++++++++++++++++++++-- include/net/irda/irlmp.h | 2 +- 3 files changed, 39 insertions(+), 4 deletions(-) (limited to 'include/net/irda') diff --git a/include/net/irda/irlan_common.h b/include/net/irda/irlan_common.h index 1c73bdbc3eb3..9592c374b41d 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 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; diff --git a/include/net/irda/irlmp.h b/include/net/irda/irlmp.h index 11ecfa58a648..e212b9bc2503 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) -- cgit v1.2.3-59-g8ed1b