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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-25 05:51:53 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-03-25 05:51:53 -0400
commitff85f707ac49ad77b7cf8dcef38e7fcd468ca3d6 (patch)
tree886db57888058d507c6a14000cf4dd2b581311e1 /drivers/char
parente9533ae539d5cc3d5fc501529d2df7b77e20449c (diff)
parentbc465aa9d045feb0e13b4a8f32cc33c1943f62d6 (diff)
Merge 4.0-rc5 into char-misc-next
We want those fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/tpm/tpm-chip.c34
-rw-r--r--drivers/char/tpm/tpm_ibmvtpm.c10
-rw-r--r--drivers/char/tpm/tpm_ibmvtpm.h6
-rw-r--r--drivers/char/virtio_console.c19
4 files changed, 40 insertions, 29 deletions
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index 1d278ccd751f..e096e9cddb40 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -140,24 +140,24 @@ static int tpm_dev_add_device(struct tpm_chip *chip)
140{ 140{
141 int rc; 141 int rc;
142 142
143 rc = device_add(&chip->dev); 143 rc = cdev_add(&chip->cdev, chip->dev.devt, 1);
144 if (rc) { 144 if (rc) {
145 dev_err(&chip->dev, 145 dev_err(&chip->dev,
146 "unable to device_register() %s, major %d, minor %d, err=%d\n", 146 "unable to cdev_add() %s, major %d, minor %d, err=%d\n",
147 chip->devname, MAJOR(chip->dev.devt), 147 chip->devname, MAJOR(chip->dev.devt),
148 MINOR(chip->dev.devt), rc); 148 MINOR(chip->dev.devt), rc);
149 149
150 device_unregister(&chip->dev);
150 return rc; 151 return rc;
151 } 152 }
152 153
153 rc = cdev_add(&chip->cdev, chip->dev.devt, 1); 154 rc = device_add(&chip->dev);
154 if (rc) { 155 if (rc) {
155 dev_err(&chip->dev, 156 dev_err(&chip->dev,
156 "unable to cdev_add() %s, major %d, minor %d, err=%d\n", 157 "unable to device_register() %s, major %d, minor %d, err=%d\n",
157 chip->devname, MAJOR(chip->dev.devt), 158 chip->devname, MAJOR(chip->dev.devt),
158 MINOR(chip->dev.devt), rc); 159 MINOR(chip->dev.devt), rc);
159 160
160 device_unregister(&chip->dev);
161 return rc; 161 return rc;
162 } 162 }
163 163
@@ -174,27 +174,17 @@ static void tpm_dev_del_device(struct tpm_chip *chip)
174 * tpm_chip_register() - create a character device for the TPM chip 174 * tpm_chip_register() - create a character device for the TPM chip
175 * @chip: TPM chip to use. 175 * @chip: TPM chip to use.
176 * 176 *
177 * Creates a character device for the TPM chip and adds sysfs interfaces for 177 * Creates a character device for the TPM chip and adds sysfs attributes for
178 * the device, PPI and TCPA. As the last step this function adds the 178 * the device. As the last step this function adds the chip to the list of TPM
179 * chip to the list of TPM chips available for use. 179 * chips available for in-kernel use.
180 * 180 *
181 * NOTE: This function should be only called after the chip initialization 181 * This function should be only called after the chip initialization is
182 * is complete. 182 * complete.
183 *
184 * Called from tpm_<specific>.c probe function only for devices
185 * the driver has determined it should claim. Prior to calling
186 * this function the specific probe function has called pci_enable_device
187 * upon errant exit from this function specific probe function should call
188 * pci_disable_device
189 */ 183 */
190int tpm_chip_register(struct tpm_chip *chip) 184int tpm_chip_register(struct tpm_chip *chip)
191{ 185{
192 int rc; 186 int rc;
193 187
194 rc = tpm_dev_add_device(chip);
195 if (rc)
196 return rc;
197
198 /* Populate sysfs for TPM1 devices. */ 188 /* Populate sysfs for TPM1 devices. */
199 if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) { 189 if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) {
200 rc = tpm_sysfs_add_device(chip); 190 rc = tpm_sysfs_add_device(chip);
@@ -208,6 +198,10 @@ int tpm_chip_register(struct tpm_chip *chip)
208 chip->bios_dir = tpm_bios_log_setup(chip->devname); 198 chip->bios_dir = tpm_bios_log_setup(chip->devname);
209 } 199 }
210 200
201 rc = tpm_dev_add_device(chip);
202 if (rc)
203 return rc;
204
211 /* Make the chip available. */ 205 /* Make the chip available. */
212 spin_lock(&driver_lock); 206 spin_lock(&driver_lock);
213 list_add_rcu(&chip->list, &tpm_chip_list); 207 list_add_rcu(&chip->list, &tpm_chip_list);
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index b1e53e3aece5..42ffa5e7a1e0 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -124,7 +124,7 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
124{ 124{
125 struct ibmvtpm_dev *ibmvtpm; 125 struct ibmvtpm_dev *ibmvtpm;
126 struct ibmvtpm_crq crq; 126 struct ibmvtpm_crq crq;
127 u64 *word = (u64 *) &crq; 127 __be64 *word = (__be64 *)&crq;
128 int rc; 128 int rc;
129 129
130 ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip); 130 ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip);
@@ -145,11 +145,11 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
145 memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count); 145 memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count);
146 crq.valid = (u8)IBMVTPM_VALID_CMD; 146 crq.valid = (u8)IBMVTPM_VALID_CMD;
147 crq.msg = (u8)VTPM_TPM_COMMAND; 147 crq.msg = (u8)VTPM_TPM_COMMAND;
148 crq.len = (u16)count; 148 crq.len = cpu_to_be16(count);
149 crq.data = ibmvtpm->rtce_dma_handle; 149 crq.data = cpu_to_be32(ibmvtpm->rtce_dma_handle);
150 150
151 rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(word[0]), 151 rc = ibmvtpm_send_crq(ibmvtpm->vdev, be64_to_cpu(word[0]),
152 cpu_to_be64(word[1])); 152 be64_to_cpu(word[1]));
153 if (rc != H_SUCCESS) { 153 if (rc != H_SUCCESS) {
154 dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc); 154 dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc);
155 rc = 0; 155 rc = 0;
diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h
index f595f14426bf..6af92890518f 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.h
+++ b/drivers/char/tpm/tpm_ibmvtpm.h
@@ -22,9 +22,9 @@
22struct ibmvtpm_crq { 22struct ibmvtpm_crq {
23 u8 valid; 23 u8 valid;
24 u8 msg; 24 u8 msg;
25 u16 len; 25 __be16 len;
26 u32 data; 26 __be32 data;
27 u64 reserved; 27 __be64 reserved;
28} __attribute__((packed, aligned(8))); 28} __attribute__((packed, aligned(8)));
29 29
30struct ibmvtpm_crq_queue { 30struct ibmvtpm_crq_queue {
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index fae2dbbf5745..72d7028f779b 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -142,6 +142,7 @@ struct ports_device {
142 * notification 142 * notification
143 */ 143 */
144 struct work_struct control_work; 144 struct work_struct control_work;
145 struct work_struct config_work;
145 146
146 struct list_head ports; 147 struct list_head ports;
147 148
@@ -1837,10 +1838,21 @@ static void config_intr(struct virtio_device *vdev)
1837 1838
1838 portdev = vdev->priv; 1839 portdev = vdev->priv;
1839 1840
1841 if (!use_multiport(portdev))
1842 schedule_work(&portdev->config_work);
1843}
1844
1845static void config_work_handler(struct work_struct *work)
1846{
1847 struct ports_device *portdev;
1848
1849 portdev = container_of(work, struct ports_device, control_work);
1840 if (!use_multiport(portdev)) { 1850 if (!use_multiport(portdev)) {
1851 struct virtio_device *vdev;
1841 struct port *port; 1852 struct port *port;
1842 u16 rows, cols; 1853 u16 rows, cols;
1843 1854
1855 vdev = portdev->vdev;
1844 virtio_cread(vdev, struct virtio_console_config, cols, &cols); 1856 virtio_cread(vdev, struct virtio_console_config, cols, &cols);
1845 virtio_cread(vdev, struct virtio_console_config, rows, &rows); 1857 virtio_cread(vdev, struct virtio_console_config, rows, &rows);
1846 1858
@@ -2040,12 +2052,14 @@ static int virtcons_probe(struct virtio_device *vdev)
2040 2052
2041 virtio_device_ready(portdev->vdev); 2053 virtio_device_ready(portdev->vdev);
2042 2054
2055 INIT_WORK(&portdev->config_work, &config_work_handler);
2056 INIT_WORK(&portdev->control_work, &control_work_handler);
2057
2043 if (multiport) { 2058 if (multiport) {
2044 unsigned int nr_added_bufs; 2059 unsigned int nr_added_bufs;
2045 2060
2046 spin_lock_init(&portdev->c_ivq_lock); 2061 spin_lock_init(&portdev->c_ivq_lock);
2047 spin_lock_init(&portdev->c_ovq_lock); 2062 spin_lock_init(&portdev->c_ovq_lock);
2048 INIT_WORK(&portdev->control_work, &control_work_handler);
2049 2063
2050 nr_added_bufs = fill_queue(portdev->c_ivq, 2064 nr_added_bufs = fill_queue(portdev->c_ivq,
2051 &portdev->c_ivq_lock); 2065 &portdev->c_ivq_lock);
@@ -2113,6 +2127,8 @@ static void virtcons_remove(struct virtio_device *vdev)
2113 /* Finish up work that's lined up */ 2127 /* Finish up work that's lined up */
2114 if (use_multiport(portdev)) 2128 if (use_multiport(portdev))
2115 cancel_work_sync(&portdev->control_work); 2129 cancel_work_sync(&portdev->control_work);
2130 else
2131 cancel_work_sync(&portdev->config_work);
2116 2132
2117 list_for_each_entry_safe(port, port2, &portdev->ports, list) 2133 list_for_each_entry_safe(port, port2, &portdev->ports, list)
2118 unplug_port(port); 2134 unplug_port(port);
@@ -2164,6 +2180,7 @@ static int virtcons_freeze(struct virtio_device *vdev)
2164 2180
2165 virtqueue_disable_cb(portdev->c_ivq); 2181 virtqueue_disable_cb(portdev->c_ivq);
2166 cancel_work_sync(&portdev->control_work); 2182 cancel_work_sync(&portdev->control_work);
2183 cancel_work_sync(&portdev->config_work);
2167 /* 2184 /*
2168 * Once more: if control_work_handler() was running, it would 2185 * Once more: if control_work_handler() was running, it would
2169 * enable the cb as the last step. 2186 * enable the cb as the last step.