* [char-misc-next 2/6] mei: remove write only wariable wd_due_counter
2012-07-04 16:24 [char-misc-next 1/6] mei: mei_device can be const for mei register access functions Tomas Winkler
@ 2012-07-04 16:24 ` Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 3/6] mei: mei_wd_host_init: update the comment Tomas Winkler
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Tomas Winkler @ 2012-07-04 16:24 UTC (permalink / raw)
To: gregkh; +Cc: arnd, alan, linux-kernel, Tomas Winkler
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/init.c | 1 -
drivers/misc/mei/interrupt.c | 12 ++++--------
drivers/misc/mei/mei_dev.h | 1 -
drivers/misc/mei/wd.c | 3 ---
4 files changed, 4 insertions(+), 13 deletions(-)
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index d39b277..e77f86e 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -306,7 +306,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
dev->iamthif_cl.host_client_id);
mei_reset_iamthif_params(dev);
- dev->wd_due_counter = 0;
dev->extra_write_index = 0;
}
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 013641d..d0ccb66 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -575,10 +575,9 @@ static void mei_client_disconnect_request(struct mei_device *dev,
disconnect_req->me_addr);
cl_pos->state = MEI_FILE_DISCONNECTED;
cl_pos->timer_count = 0;
- if (cl_pos == &dev->wd_cl) {
- dev->wd_due_counter = 0;
+ if (cl_pos == &dev->wd_cl)
dev->wd_pending = false;
- } else if (cl_pos == &dev->iamthif_cl)
+ else if (cl_pos == &dev->iamthif_cl)
dev->iamthif_timer = 0;
/* prepare disconnect response */
@@ -1266,15 +1265,12 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
dev->wd_pending = false;
- if (dev->wd_timeout) {
+ if (dev->wd_timeout)
*slots -= (sizeof(struct mei_msg_hdr) +
MEI_START_WD_DATA_SIZE + 3) / 4;
- dev->wd_due_counter = 2;
- } else {
+ else
*slots -= (sizeof(struct mei_msg_hdr) +
MEI_WD_PARAMS_SIZE + 3) / 4;
- dev->wd_due_counter = 0;
- }
}
}
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 772f74d..d61c4dd 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -246,7 +246,6 @@ struct mei_device {
bool wd_stopped;
bool wd_bypass; /* if false, don't refresh watchdog ME client */
u16 wd_timeout; /* seconds ((wd_data[1] << 8) + wd_data[0]) */
- u16 wd_due_counter;
unsigned char wd_data[MEI_START_WD_DATA_SIZE];
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index e2ec050..ae60c3f 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -137,7 +137,6 @@ int mei_wd_stop(struct mei_device *dev, bool preserve)
return 0;
dev->wd_timeout = 0;
- dev->wd_due_counter = 0;
memcpy(dev->wd_data, mei_stop_wd_params, MEI_WD_PARAMS_SIZE);
dev->stop = true;
@@ -357,8 +356,6 @@ void mei_watchdog_register(struct mei_device *dev)
{
dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout);
- dev->wd_due_counter = !!dev->wd_timeout;
-
if (watchdog_register_device(&amt_wd_dev)) {
dev_err(&dev->pdev->dev,
"wd: unable to register watchdog device.\n");
--
1.7.4.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [char-misc-next 3/6] mei: mei_wd_host_init: update the comment
2012-07-04 16:24 [char-misc-next 1/6] mei: mei_device can be const for mei register access functions Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 2/6] mei: remove write only wariable wd_due_counter Tomas Winkler
@ 2012-07-04 16:24 ` Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 4/6] mei: introduce mei_data2slots wrapper Tomas Winkler
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Tomas Winkler @ 2012-07-04 16:24 UTC (permalink / raw)
To: gregkh; +Cc: arnd, alan, linux-kernel, Tomas Winkler
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/wd.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index ae60c3f..5133fd7 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -53,11 +53,12 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
}
/**
- * host_init_wd - mei initialization wd.
+ * mei_wd_host_init - connect to the watchdog client
*
* @dev: the device structure
* returns -ENENT if wd client cannot be found
* -EIO if write has failed
+ * 0 on success
*/
int mei_wd_host_init(struct mei_device *dev)
{
--
1.7.4.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [char-misc-next 4/6] mei: introduce mei_data2slots wrapper
2012-07-04 16:24 [char-misc-next 1/6] mei: mei_device can be const for mei register access functions Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 2/6] mei: remove write only wariable wd_due_counter Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 3/6] mei: mei_wd_host_init: update the comment Tomas Winkler
@ 2012-07-04 16:24 ` Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 5/6] mei: streamline the _mei_irq_thread_close/ioctol functions Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 6/6] mei: mei_irq_thread_write_handler - line break fix Tomas Winkler
4 siblings, 0 replies; 6+ messages in thread
From: Tomas Winkler @ 2012-07-04 16:24 UTC (permalink / raw)
To: gregkh; +Cc: arnd, alan, linux-kernel, Tomas Winkler
Introduce mei_data2slots wrapper for sake of
readability. This wrapper close up the open code
for computing slots from a message length:
rond up dwords count from payload and header byte size
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/interface.c | 2 +-
drivers/misc/mei/interface.h | 6 ++++++
drivers/misc/mei/interrupt.c | 33 +++++++++++----------------------
3 files changed, 18 insertions(+), 23 deletions(-)
diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c
index 88ada64..509c395 100644
--- a/drivers/misc/mei/interface.c
+++ b/drivers/misc/mei/interface.c
@@ -135,7 +135,7 @@ int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header,
empty_slots = mei_hbuf_empty_slots(dev);
dev_dbg(&dev->pdev->dev, "empty slots = %hu.\n", empty_slots);
- dw_cnt = (length + sizeof(*header) + 3) / 4;
+ dw_cnt = mei_data2slots(length);
if (empty_slots < 0 || dw_cnt > empty_slots)
return -EIO;
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index cd9b778..fb5c7db 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -50,6 +50,12 @@ static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
}
+/* get slots (dwords) from a message length + header (bytes) */
+static inline unsigned char mei_data2slots(size_t length)
+{
+ return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
+}
+
int mei_count_full_read_slots(struct mei_device *dev);
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index d0ccb66..8679f22 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -267,8 +267,7 @@ static int _mei_irq_thread_iamthif_read(struct mei_device *dev, s32 *slots)
+ sizeof(struct hbm_flow_control))) {
return -EMSGSIZE;
}
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_flow_control) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_flow_control));
if (mei_send_flow_control(dev, &dev->iamthif_cl)) {
dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n");
return -EIO;
@@ -302,8 +301,7 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
{
if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_disconnect_request))) {
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_client_disconnect_request) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request));
if (mei_disconnect(dev, cl)) {
cl->status = 0;
@@ -841,8 +839,8 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots,
return -EBADMSG;
}
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_flow_control) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_flow_control));
+
if (mei_send_flow_control(dev, cl)) {
cl->status = -ENODEV;
cb_pos->information = 0;
@@ -874,8 +872,7 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_connect_request))) {
cl->state = MEI_FILE_CONNECTING;
- *slots -= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_client_connect_request) + 3) / 4;
+ *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
if (mei_connect(dev, cl)) {
cl->status = -ENODEV;
cb_pos->information = 0;
@@ -931,8 +928,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
cb_pos->information);
dev_dbg(&dev->pdev->dev, "mei_hdr->length =%d\n",
mei_hdr->length);
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(unsigned char *)
(cb_pos->request_buffer.data +
@@ -959,9 +955,7 @@ static int _mei_irq_thread_cmpl(struct mei_device *dev, s32 *slots,
(*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
mei_hdr->msg_complete = 0;
mei_hdr->reserved = 0;
-
- (*slots) -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(unsigned char *)
(cb_pos->request_buffer.data +
@@ -1020,8 +1014,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
mei_hdr->msg_complete = 1;
mei_hdr->reserved = 0;
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(dev->iamthif_msg_buf +
@@ -1055,8 +1048,7 @@ static int _mei_irq_thread_cmpl_iamthif(struct mei_device *dev, s32 *slots,
mei_hdr->msg_complete = 0;
mei_hdr->reserved = 0;
- *slots -= (sizeof(struct mei_msg_hdr) +
- mei_hdr->length + 3) / 4;
+ *slots -= mei_data2slots(mei_hdr->length);
if (mei_write_message(dev, mei_hdr,
(dev->iamthif_msg_buf +
@@ -1266,12 +1258,9 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
dev->wd_pending = false;
if (dev->wd_timeout)
- *slots -= (sizeof(struct mei_msg_hdr) +
- MEI_START_WD_DATA_SIZE + 3) / 4;
+ *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
else
- *slots -= (sizeof(struct mei_msg_hdr) +
- MEI_WD_PARAMS_SIZE + 3) / 4;
-
+ *slots -= mei_data2slots(MEI_START_WD_DATA_SIZE);
}
}
if (dev->stop)
--
1.7.4.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [char-misc-next 5/6] mei: streamline the _mei_irq_thread_close/ioctol functions
2012-07-04 16:24 [char-misc-next 1/6] mei: mei_device can be const for mei register access functions Tomas Winkler
` (2 preceding siblings ...)
2012-07-04 16:24 ` [char-misc-next 4/6] mei: introduce mei_data2slots wrapper Tomas Winkler
@ 2012-07-04 16:24 ` Tomas Winkler
2012-07-04 16:24 ` [char-misc-next 6/6] mei: mei_irq_thread_write_handler - line break fix Tomas Winkler
4 siblings, 0 replies; 6+ messages in thread
From: Tomas Winkler @ 2012-07-04 16:24 UTC (permalink / raw)
To: gregkh; +Cc: arnd, alan, linux-kernel, Tomas Winkler
change statements of types
if (ok)
do something
else
return err
into
if (err)
return err
do something
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/interrupt.c | 63 ++++++++++++++++++++----------------------
1 files changed, 30 insertions(+), 33 deletions(-)
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 8679f22..4a3b117 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -299,27 +299,25 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
struct mei_cl *cl,
struct mei_io_list *cmpl_list)
{
- if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
- sizeof(struct hbm_client_disconnect_request))) {
- *slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request));
+ if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
+ sizeof(struct hbm_client_disconnect_request)))
+ return -EBADMSG;
- if (mei_disconnect(dev, cl)) {
- cl->status = 0;
- cb_pos->information = 0;
- list_move_tail(&cb_pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
- return -EMSGSIZE;
- } else {
- cl->state = MEI_FILE_DISCONNECTING;
- cl->status = 0;
- cb_pos->information = 0;
- list_move_tail(&cb_pos->cb_list,
- &dev->ctrl_rd_list.mei_cb.cb_list);
- cl->timer_count = MEI_CONNECT_TIMEOUT;
- }
+ *slots -= mei_data2slots(sizeof(struct hbm_client_disconnect_request));
+
+ if (mei_disconnect(dev, cl)) {
+ cl->status = 0;
+ cb_pos->information = 0;
+ list_move_tail(&cb_pos->cb_list,
+ &cmpl_list->mei_cb.cb_list);
+ return -EMSGSIZE;
} else {
- /* return the cancel routine */
- return -EBADMSG;
+ cl->state = MEI_FILE_DISCONNECTING;
+ cl->status = 0;
+ cb_pos->information = 0;
+ list_move_tail(&cb_pos->cb_list,
+ &dev->ctrl_rd_list.mei_cb.cb_list);
+ cl->timer_count = MEI_CONNECT_TIMEOUT;
}
return 0;
@@ -869,26 +867,25 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
struct mei_cl *cl,
struct mei_io_list *cmpl_list)
{
- if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
+ if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
sizeof(struct hbm_client_connect_request))) {
- cl->state = MEI_FILE_CONNECTING;
- *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
- if (mei_connect(dev, cl)) {
- cl->status = -ENODEV;
- cb_pos->information = 0;
- list_del(&cb_pos->cb_list);
- return -ENODEV;
- } else {
- list_move_tail(&cb_pos->cb_list,
- &dev->ctrl_rd_list.mei_cb.cb_list);
- cl->timer_count = MEI_CONNECT_TIMEOUT;
- }
- } else {
/* return the cancel routine */
list_del(&cb_pos->cb_list);
return -EBADMSG;
}
+ cl->state = MEI_FILE_CONNECTING;
+ *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
+ if (mei_connect(dev, cl)) {
+ cl->status = -ENODEV;
+ cb_pos->information = 0;
+ list_del(&cb_pos->cb_list);
+ return -ENODEV;
+ } else {
+ list_move_tail(&cb_pos->cb_list,
+ &dev->ctrl_rd_list.mei_cb.cb_list);
+ cl->timer_count = MEI_CONNECT_TIMEOUT;
+ }
return 0;
}
--
1.7.4.4
^ permalink raw reply [flat|nested] 6+ messages in thread* [char-misc-next 6/6] mei: mei_irq_thread_write_handler - line break fix
2012-07-04 16:24 [char-misc-next 1/6] mei: mei_device can be const for mei register access functions Tomas Winkler
` (3 preceding siblings ...)
2012-07-04 16:24 ` [char-misc-next 5/6] mei: streamline the _mei_irq_thread_close/ioctol functions Tomas Winkler
@ 2012-07-04 16:24 ` Tomas Winkler
4 siblings, 0 replies; 6+ messages in thread
From: Tomas Winkler @ 2012-07-04 16:24 UTC (permalink / raw)
To: gregkh; +Cc: arnd, alan, linux-kernel, Tomas Winkler
1. straight up lines that doesn't cross 80 characters
2. don't break strings
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
---
drivers/misc/mei/interrupt.c | 44 +++++++++++++++--------------------------
1 files changed, 16 insertions(+), 28 deletions(-)
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4a3b117..c6ffbbe 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -1199,8 +1199,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n");
list = &dev->write_waiting_list;
- list_for_each_entry_safe(pos, next,
- &list->mei_cb.cb_list, cb_list) {
+ list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) {
cl = (struct mei_cl *)pos->file_private;
if (cl == NULL)
continue;
@@ -1210,17 +1209,15 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
if (MEI_WRITING == cl->writing_state &&
(pos->major_file_operations == MEI_WRITE) &&
(cl != &dev->iamthif_cl)) {
- dev_dbg(&dev->pdev->dev,
- "MEI WRITE COMPLETE\n");
+ dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
cl->writing_state = MEI_WRITE_COMPLETE;
list_add_tail(&pos->cb_list,
- &cmpl_list->mei_cb.cb_list);
+ &cmpl_list->mei_cb.cb_list);
}
if (cl == &dev->iamthif_cl) {
dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
if (dev->iamthif_flow_control_pending) {
- ret = _mei_irq_thread_iamthif_read(
- dev, slots);
+ ret = _mei_irq_thread_iamthif_read(dev, slots);
if (ret)
return ret;
}
@@ -1245,12 +1242,11 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
}
if (dev->mei_state == MEI_ENABLED) {
if (dev->wd_pending &&
- mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
+ mei_flow_ctrl_creds(dev, &dev->wd_cl) > 0) {
if (mei_wd_send(dev))
dev_dbg(&dev->pdev->dev, "wd send failed.\n");
- else
- if (mei_flow_ctrl_reduce(dev, &dev->wd_cl))
- return -ENODEV;
+ else if (mei_flow_ctrl_reduce(dev, &dev->wd_cl))
+ return -ENODEV;
dev->wd_pending = false;
@@ -1305,7 +1301,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
/* complete write list CB */
dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
list_for_each_entry_safe(pos, next,
- &dev->write_list.mei_cb.cb_list, cb_list) {
+ &dev->write_list.mei_cb.cb_list, cb_list) {
cl = (struct mei_cl *)pos->file_private;
if (cl == NULL)
continue;
@@ -1313,15 +1309,12 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
if (cl != &dev->iamthif_cl) {
if (mei_flow_ctrl_creds(dev, cl) <= 0) {
dev_dbg(&dev->pdev->dev,
- "No flow control"
- " credentials for client"
- " %d, not sending.\n",
- cl->host_client_id);
+ "No flow control credentials for client %d, not sending.\n",
+ cl->host_client_id);
continue;
}
- ret = _mei_irq_thread_cmpl(dev, slots,
- pos,
- cl, cmpl_list);
+ ret = _mei_irq_thread_cmpl(dev, slots, pos,
+ cl, cmpl_list);
if (ret)
return ret;
@@ -1330,17 +1323,12 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
dev_dbg(&dev->pdev->dev, "complete amthi write cb.\n");
if (mei_flow_ctrl_creds(dev, cl) <= 0) {
dev_dbg(&dev->pdev->dev,
- "No flow control"
- " credentials for amthi"
- " client %d.\n",
- cl->host_client_id);
+ "No flow control credentials for amthi client %d.\n",
+ cl->host_client_id);
continue;
}
- ret = _mei_irq_thread_cmpl_iamthif(dev,
- slots,
- pos,
- cl,
- cmpl_list);
+ ret = _mei_irq_thread_cmpl_iamthif(dev, slots, pos,
+ cl, cmpl_list);
if (ret)
return ret;
--
1.7.4.4
^ permalink raw reply [flat|nested] 6+ messages in thread