From df9b5d4cf636f992276b6b595620d9b2a63095db Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 15 Jun 2008 12:20:18 -0300 Subject: [PATCH] V4L/DVB (8047): bt8xx: i2c structure templates clean-up Clean up the use of structure templates in bttv-i2c. For one thing, a real template is supposed to be read-only. And in some cases it's more efficient to initialize the few fields we need individually. This clean-up shrinks bttv-i2c.o by 29% (x86_64). Signed-off-by: Jean Delvare Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-i2c.c | 49 ++++++++-------------------- 1 file changed, 14 insertions(+), 35 deletions(-) diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c index 4d5b8035e46..bcd2cd240a1 100644 --- a/drivers/media/video/bt8xx/bttv-i2c.c +++ b/drivers/media/video/bt8xx/bttv-i2c.c @@ -36,11 +36,6 @@ #include #include -static struct i2c_algo_bit_data bttv_i2c_algo_bit_template; -static struct i2c_adapter bttv_i2c_adap_sw_template; -static struct i2c_adapter bttv_i2c_adap_hw_template; -static struct i2c_client bttv_i2c_client_template; - static int attach_inform(struct i2c_client *client); static int i2c_debug; @@ -104,7 +99,7 @@ static int bttv_bit_getsda(void *data) return state; } -static struct i2c_algo_bit_data bttv_i2c_algo_bit_template = { +static struct i2c_algo_bit_data __devinitdata bttv_i2c_algo_bit_template = { .setsda = bttv_bit_setsda, .setscl = bttv_bit_setscl, .getsda = bttv_bit_getsda, @@ -113,14 +108,6 @@ static struct i2c_algo_bit_data bttv_i2c_algo_bit_template = { .timeout = 200, }; -static struct i2c_adapter bttv_i2c_adap_sw_template = { - .owner = THIS_MODULE, - .class = I2C_CLASS_TV_ANALOG, - .name = "bttv", - .id = I2C_HW_B_BT848, - .client_register = attach_inform, -}; - /* ----------------------------------------------------------------------- */ /* I2C functions - hardware i2c */ @@ -270,20 +257,11 @@ static int bttv_i2c_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs, int return retval; } -static struct i2c_algorithm bttv_algo = { +static const struct i2c_algorithm bttv_algo = { .master_xfer = bttv_i2c_xfer, .functionality = functionality, }; -static struct i2c_adapter bttv_i2c_adap_hw_template = { - .owner = THIS_MODULE, - .class = I2C_CLASS_TV_ANALOG, - .name = "bt878", - .id = I2C_HW_B_BT848 /* FIXME */, - .algo = &bttv_algo, - .client_register = attach_inform, -}; - /* ----------------------------------------------------------------------- */ /* I2C functions - common stuff */ @@ -332,10 +310,6 @@ void bttv_call_i2c_clients(struct bttv *btv, unsigned int cmd, void *arg) i2c_clients_command(&btv->c.i2c_adap, cmd, arg); } -static struct i2c_client bttv_i2c_client_template = { - .name = "bttv internal", -}; - /* read I2C */ int bttv_I2CRead(struct bttv *btv, unsigned char addr, char *probe_for) @@ -417,29 +391,34 @@ static void do_i2c_scan(char *name, struct i2c_client *c) /* init + register i2c algo-bit adapter */ int __devinit init_bttv_i2c(struct bttv *btv) { - memcpy(&btv->i2c_client, &bttv_i2c_client_template, - sizeof(bttv_i2c_client_template)); + strlcpy(btv->i2c_client.name, "bttv internal", I2C_NAME_SIZE); if (i2c_hw) btv->use_i2c_hw = 1; if (btv->use_i2c_hw) { /* bt878 */ - memcpy(&btv->c.i2c_adap, &bttv_i2c_adap_hw_template, - sizeof(bttv_i2c_adap_hw_template)); + strlcpy(btv->c.i2c_adap.name, "bt878", + sizeof(btv->c.i2c_adap.name)); + btv->c.i2c_adap.id = I2C_HW_B_BT848; /* FIXME */ + btv->c.i2c_adap.algo = &bttv_algo; } else { /* bt848 */ /* Prevents usage of invalid delay values */ if (i2c_udelay<5) i2c_udelay=5; - bttv_i2c_algo_bit_template.udelay=i2c_udelay; - memcpy(&btv->c.i2c_adap, &bttv_i2c_adap_sw_template, - sizeof(bttv_i2c_adap_sw_template)); + strlcpy(btv->c.i2c_adap.name, "bttv", + sizeof(btv->c.i2c_adap.name)); + btv->c.i2c_adap.id = I2C_HW_B_BT848; memcpy(&btv->i2c_algo, &bttv_i2c_algo_bit_template, sizeof(bttv_i2c_algo_bit_template)); + btv->i2c_algo.udelay = i2c_udelay; btv->i2c_algo.data = btv; btv->c.i2c_adap.algo_data = &btv->i2c_algo; } + btv->c.i2c_adap.owner = THIS_MODULE; + btv->c.i2c_adap.class = I2C_CLASS_TV_ANALOG; + btv->c.i2c_adap.client_register = attach_inform; btv->c.i2c_adap.dev.parent = &btv->c.pci->dev; snprintf(btv->c.i2c_adap.name, sizeof(btv->c.i2c_adap.name), -- 2.41.0