From 9e41bade85ef338afd983c109368d1bbbe931f80 Mon Sep 17 00:00:00 2001 From: Alastair D'Silva Date: Tue, 27 Dec 2016 14:59:29 +0000 Subject: [PATCH] hw/i2c: Add a NULL check for i2c slave init callbacks Add a NULL check for i2c slave init callbacks, so that we no longer need to implement empty init functions. Signed-off-by: Alastair D'Silva Message-id: 20161202054617.6749-4-alastair@au1.ibm.com Reviewed-by: Peter Maydell [PMM: squashed in later tweak from Alistair to if() phrasing] Signed-off-by: Peter Maydell --- hw/arm/pxa2xx.c | 7 ------- hw/arm/tosa.c | 7 ------- hw/arm/z2.c | 7 ------- hw/i2c/core.c | 6 +++++- hw/timer/ds1338.c | 6 ------ 5 files changed, 5 insertions(+), 28 deletions(-) diff --git a/hw/arm/pxa2xx.c b/hw/arm/pxa2xx.c index 8aa0f8a23a..bdcf6bcce7 100644 --- a/hw/arm/pxa2xx.c +++ b/hw/arm/pxa2xx.c @@ -1449,17 +1449,10 @@ static const VMStateDescription vmstate_pxa2xx_i2c = { } }; -static int pxa2xx_i2c_slave_init(I2CSlave *i2c) -{ - /* Nothing to do. */ - return 0; -} - static void pxa2xx_i2c_slave_class_init(ObjectClass *klass, void *data) { I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); - k->init = pxa2xx_i2c_slave_init; k->event = pxa2xx_i2c_event; k->recv = pxa2xx_i2c_rx; k->send = pxa2xx_i2c_tx; diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c index 1ee12f49b3..39d9dbbae6 100644 --- a/hw/arm/tosa.c +++ b/hw/arm/tosa.c @@ -202,12 +202,6 @@ static int tosa_dac_recv(I2CSlave *s) return -1; } -static int tosa_dac_init(I2CSlave *i2c) -{ - /* Nothing to do. */ - return 0; -} - static void tosa_tg_init(PXA2xxState *cpu) { I2CBus *bus = pxa2xx_i2c_bus(cpu->i2c[0]); @@ -275,7 +269,6 @@ static void tosa_dac_class_init(ObjectClass *klass, void *data) { I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); - k->init = tosa_dac_init; k->event = tosa_dac_event; k->recv = tosa_dac_recv; k->send = tosa_dac_send; diff --git a/hw/arm/z2.c b/hw/arm/z2.c index 68a92f3184..b3a6bbd210 100644 --- a/hw/arm/z2.c +++ b/hw/arm/z2.c @@ -263,12 +263,6 @@ static int aer915_recv(I2CSlave *slave) return retval; } -static int aer915_init(I2CSlave *i2c) -{ - /* Nothing to do. */ - return 0; -} - static VMStateDescription vmstate_aer915_state = { .name = "aer915", .version_id = 1, @@ -285,7 +279,6 @@ static void aer915_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); - k->init = aer915_init; k->event = aer915_event; k->recv = aer915_recv; k->send = aer915_send; diff --git a/hw/i2c/core.c b/hw/i2c/core.c index abd4c4cddb..e40781ea3b 100644 --- a/hw/i2c/core.c +++ b/hw/i2c/core.c @@ -260,7 +260,11 @@ static int i2c_slave_qdev_init(DeviceState *dev) I2CSlave *s = I2C_SLAVE(dev); I2CSlaveClass *sc = I2C_SLAVE_GET_CLASS(s); - return sc->init(s); + if (sc->init) { + return sc->init(s); + } + + return 0; } DeviceState *i2c_create_slave(I2CBus *bus, const char *name, uint8_t addr) diff --git a/hw/timer/ds1338.c b/hw/timer/ds1338.c index 0112949e23..f5d04dd5d7 100644 --- a/hw/timer/ds1338.c +++ b/hw/timer/ds1338.c @@ -198,11 +198,6 @@ static int ds1338_send(I2CSlave *i2c, uint8_t data) return 0; } -static int ds1338_init(I2CSlave *i2c) -{ - return 0; -} - static void ds1338_reset(DeviceState *dev) { DS1338State *s = DS1338(dev); @@ -220,7 +215,6 @@ static void ds1338_class_init(ObjectClass *klass, void *data) DeviceClass *dc = DEVICE_CLASS(klass); I2CSlaveClass *k = I2C_SLAVE_CLASS(klass); - k->init = ds1338_init; k->event = ds1338_event; k->recv = ds1338_recv; k->send = ds1338_send; -- 2.11.4.GIT