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authorJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
committerJiri Kosina <jkosina@suse.cz>2014-11-20 14:42:02 +0100
commita02001086bbfb4da35d1228bebc2f1b442db455f (patch)
tree62ab47936cef06fd08657ca5b6cd1df98c19be57 /drivers/misc/mei/interrupt.c
parentkernel: trace: fix printk message (diff)
parentLinux 3.18-rc5 (diff)
downloadlinux-a02001086bbfb4da35d1228bebc2f1b442db455f.tar.xz
linux-a02001086bbfb4da35d1228bebc2f1b442db455f.zip
Merge Linus' tree to be be to apply submitted patches to newer code than
current trivial.git base
Diffstat (limited to 'drivers/misc/mei/interrupt.c')
-rw-r--r--drivers/misc/mei/interrupt.c96
1 files changed, 43 insertions, 53 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4e3cba6da3f5..20c6c511f438 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -16,11 +16,11 @@
#include <linux/export.h>
-#include <linux/pci.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/jiffies.h>
+#include <linux/slab.h>
#include <linux/mei.h>
@@ -33,8 +33,8 @@
* mei_irq_compl_handler - dispatch complete handlers
* for the completed callbacks
*
- * @dev - mei device
- * @compl_list - list of completed cbs
+ * @dev: mei device
+ * @compl_list: list of completed cbs
*/
void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list)
{
@@ -47,7 +47,7 @@ void mei_irq_compl_handler(struct mei_device *dev, struct mei_cl_cb *compl_list)
if (!cl)
continue;
- dev_dbg(&dev->pdev->dev, "completing call back.\n");
+ dev_dbg(dev->dev, "completing call back.\n");
if (cl == &dev->iamthif_cl)
mei_amthif_complete(dev, cb);
else
@@ -62,7 +62,7 @@ EXPORT_SYMBOL_GPL(mei_irq_compl_handler);
* @cl: host client
* @mei_hdr: header of mei client message
*
- * returns true if matches, false otherwise
+ * Return: true if matches, false otherwise
*/
static inline int mei_cl_hbm_equal(struct mei_cl *cl,
struct mei_msg_hdr *mei_hdr)
@@ -72,12 +72,12 @@ static inline int mei_cl_hbm_equal(struct mei_cl *cl,
}
/**
* mei_cl_is_reading - checks if the client
- is the one to read this message
+ * is the one to read this message
*
* @cl: mei client
* @mei_hdr: header of mei message
*
- * returns true on match and false otherwise
+ * Return: true on match and false otherwise
*/
static bool mei_cl_is_reading(struct mei_cl *cl, struct mei_msg_hdr *mei_hdr)
{
@@ -87,13 +87,13 @@ static bool mei_cl_is_reading(struct mei_cl *cl, struct mei_msg_hdr *mei_hdr)
}
/**
- * mei_irq_read_client_message - process client message
+ * mei_cl_irq_read_msg - process client message
*
* @dev: the device structure
* @mei_hdr: header of mei client message
* @complete_list: An instance of our list structure
*
- * returns 0 on success, <0 on failure.
+ * Return: 0 on success, <0 on failure.
*/
static int mei_cl_irq_read_msg(struct mei_device *dev,
struct mei_msg_hdr *mei_hdr,
@@ -126,7 +126,6 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
GFP_KERNEL);
if (!buffer) {
- cl_err(dev, cl, "allocation failed.\n");
list_del(&cb->list);
return -ENOMEM;
}
@@ -149,10 +148,10 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
break;
}
- dev_dbg(&dev->pdev->dev, "message read\n");
+ dev_dbg(dev->dev, "message read\n");
if (!buffer) {
mei_read_slots(dev, dev->rd_msg_buf, mei_hdr->length);
- dev_dbg(&dev->pdev->dev, "discarding message " MEI_HDR_FMT "\n",
+ dev_dbg(dev->dev, "discarding message " MEI_HDR_FMT "\n",
MEI_HDR_PRM(mei_hdr));
}
@@ -166,7 +165,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
* @cb: callback block.
* @cmpl_list: complete list.
*
- * returns 0, OK; otherwise, error.
+ * Return: 0, OK; otherwise, error.
*/
static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list)
@@ -195,16 +194,16 @@ static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb,
/**
- * mei_cl_irq_close - processes close related operation from
+ * mei_cl_irq_disconnect - processes close related operation from
* interrupt thread context - send disconnect request
*
* @cl: client
* @cb: callback block.
* @cmpl_list: complete list.
*
- * returns 0, OK; otherwise, error.
+ * Return: 0, OK; otherwise, error.
*/
-static int mei_cl_irq_close(struct mei_cl *cl, struct mei_cl_cb *cb,
+static int mei_cl_irq_disconnect(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list)
{
struct mei_device *dev = cl->dev;
@@ -235,14 +234,14 @@ static int mei_cl_irq_close(struct mei_cl *cl, struct mei_cl_cb *cb,
/**
- * mei_cl_irq_close - processes client read related operation from the
+ * mei_cl_irq_read - processes client read related operation from the
* interrupt thread context - request for flow control credits
*
* @cl: client
* @cb: callback block.
* @cmpl_list: complete list.
*
- * returns 0, OK; otherwise, error.
+ * Return: 0, OK; otherwise, error.
*/
static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list)
@@ -279,7 +278,7 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
* @cb: callback block.
* @cmpl_list: complete list.
*
- * returns 0, OK; otherwise, error.
+ * Return: 0, OK; otherwise, error.
*/
static int mei_cl_irq_connect(struct mei_cl *cl, struct mei_cl_cb *cb,
struct mei_cl_cb *cmpl_list)
@@ -322,7 +321,7 @@ static int mei_cl_irq_connect(struct mei_cl *cl, struct mei_cl_cb *cb,
* @cmpl_list: An instance of our list structure
* @slots: slots to read.
*
- * returns 0 on success, <0 on failure.
+ * Return: 0 on success, <0 on failure.
*/
int mei_irq_read_handler(struct mei_device *dev,
struct mei_cl_cb *cmpl_list, s32 *slots)
@@ -334,20 +333,20 @@ int mei_irq_read_handler(struct mei_device *dev,
if (!dev->rd_msg_hdr) {
dev->rd_msg_hdr = mei_read_hdr(dev);
(*slots)--;
- dev_dbg(&dev->pdev->dev, "slots =%08x.\n", *slots);
+ dev_dbg(dev->dev, "slots =%08x.\n", *slots);
}
mei_hdr = (struct mei_msg_hdr *) &dev->rd_msg_hdr;
- dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));
+ dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));
if (mei_hdr->reserved || !dev->rd_msg_hdr) {
- dev_err(&dev->pdev->dev, "corrupted message header 0x%08X\n",
+ dev_err(dev->dev, "corrupted message header 0x%08X\n",
dev->rd_msg_hdr);
ret = -EBADMSG;
goto end;
}
if (mei_slots2data(*slots) < mei_hdr->length) {
- dev_err(&dev->pdev->dev, "less data available than length=%08x.\n",
+ dev_err(dev->dev, "less data available than length=%08x.\n",
*slots);
/* we can't read the message */
ret = -ENODATA;
@@ -358,7 +357,7 @@ int mei_irq_read_handler(struct mei_device *dev,
if (mei_hdr->host_addr == 0 && mei_hdr->me_addr == 0) {
ret = mei_hbm_dispatch(dev, mei_hdr);
if (ret) {
- dev_dbg(&dev->pdev->dev, "mei_hbm_dispatch failed ret = %d\n",
+ dev_dbg(dev->dev, "mei_hbm_dispatch failed ret = %d\n",
ret);
goto end;
}
@@ -375,7 +374,7 @@ int mei_irq_read_handler(struct mei_device *dev,
/* if no recipient cl was found we assume corrupted header */
if (&cl->link == &dev->file_list) {
- dev_err(&dev->pdev->dev, "no destination client found 0x%08X\n",
+ dev_err(dev->dev, "no destination client found 0x%08X\n",
dev->rd_msg_hdr);
ret = -EBADMSG;
goto end;
@@ -387,14 +386,14 @@ int mei_irq_read_handler(struct mei_device *dev,
ret = mei_amthif_irq_read_msg(dev, mei_hdr, cmpl_list);
if (ret) {
- dev_err(&dev->pdev->dev, "mei_amthif_irq_read_msg failed = %d\n",
+ dev_err(dev->dev, "mei_amthif_irq_read_msg failed = %d\n",
ret);
goto end;
}
} else {
ret = mei_cl_irq_read_msg(dev, mei_hdr, cmpl_list);
if (ret) {
- dev_err(&dev->pdev->dev, "mei_cl_irq_read_msg failed = %d\n",
+ dev_err(dev->dev, "mei_cl_irq_read_msg failed = %d\n",
ret);
goto end;
}
@@ -407,7 +406,7 @@ reset_slots:
if (*slots == -EOVERFLOW) {
/* overflow - reset */
- dev_err(&dev->pdev->dev, "resetting due to slots overflow.\n");
+ dev_err(dev->dev, "resetting due to slots overflow.\n");
/* set the event since message has been read */
ret = -ERANGE;
goto end;
@@ -425,7 +424,7 @@ EXPORT_SYMBOL_GPL(mei_irq_read_handler);
* @dev: the device structure
* @cmpl_list: An instance of our list structure
*
- * returns 0 on success, <0 on failure.
+ * Return: 0 on success, <0 on failure.
*/
int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
{
@@ -445,7 +444,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
return -EMSGSIZE;
/* complete all waiting for write CB */
- dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n");
+ dev_dbg(dev->dev, "complete all waiting for write cb.\n");
list = &dev->write_waiting_list;
list_for_each_entry_safe(cb, next, &list->list, list) {
@@ -487,7 +486,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
}
/* complete control write list CB */
- dev_dbg(&dev->pdev->dev, "complete control write list cb.\n");
+ dev_dbg(dev->dev, "complete control write list cb.\n");
list_for_each_entry_safe(cb, next, &dev->ctrl_wr_list.list, list) {
cl = cb->cl;
if (!cl) {
@@ -495,9 +494,9 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
return -ENODEV;
}
switch (cb->fop_type) {
- case MEI_FOP_CLOSE:
+ case MEI_FOP_DISCONNECT:
/* send disconnect message */
- ret = mei_cl_irq_close(cl, cb, cmpl_list);
+ ret = mei_cl_irq_disconnect(cl, cb, cmpl_list);
if (ret)
return ret;
@@ -528,7 +527,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
}
/* complete write list CB */
- dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
+ dev_dbg(dev->dev, "complete write list cb.\n");
list_for_each_entry_safe(cb, next, &dev->write_list.list, list) {
cl = cb->cl;
if (cl == NULL)
@@ -556,8 +555,6 @@ void mei_timer(struct work_struct *work)
{
unsigned long timeout;
struct mei_cl *cl;
- struct mei_cl_cb *cb_pos = NULL;
- struct mei_cl_cb *cb_next = NULL;
struct mei_device *dev = container_of(work,
struct mei_device, timer_work.work);
@@ -571,7 +568,7 @@ void mei_timer(struct work_struct *work)
if (dev->init_clients_timer) {
if (--dev->init_clients_timer == 0) {
- dev_err(&dev->pdev->dev, "timer: init clients timeout hbm_state = %d.\n",
+ dev_err(dev->dev, "timer: init clients timeout hbm_state = %d.\n",
dev->hbm_state);
mei_reset(dev);
goto out;
@@ -586,7 +583,7 @@ void mei_timer(struct work_struct *work)
list_for_each_entry(cl, &dev->file_list, link) {
if (cl->timer_count) {
if (--cl->timer_count == 0) {
- dev_err(&dev->pdev->dev, "timer: connect/disconnect timeout.\n");
+ dev_err(dev->dev, "timer: connect/disconnect timeout.\n");
mei_reset(dev);
goto out;
}
@@ -598,7 +595,7 @@ void mei_timer(struct work_struct *work)
if (dev->iamthif_stall_timer) {
if (--dev->iamthif_stall_timer == 0) {
- dev_err(&dev->pdev->dev, "timer: amthif hanged.\n");
+ dev_err(dev->dev, "timer: amthif hanged.\n");
mei_reset(dev);
dev->iamthif_msg_buf_size = 0;
dev->iamthif_msg_buf_index = 0;
@@ -620,27 +617,20 @@ void mei_timer(struct work_struct *work)
timeout = dev->iamthif_timer +
mei_secs_to_jiffies(MEI_IAMTHIF_READ_TIMER);
- dev_dbg(&dev->pdev->dev, "dev->iamthif_timer = %ld\n",
+ dev_dbg(dev->dev, "dev->iamthif_timer = %ld\n",
dev->iamthif_timer);
- dev_dbg(&dev->pdev->dev, "timeout = %ld\n", timeout);
- dev_dbg(&dev->pdev->dev, "jiffies = %ld\n", jiffies);
+ dev_dbg(dev->dev, "timeout = %ld\n", timeout);
+ dev_dbg(dev->dev, "jiffies = %ld\n", jiffies);
if (time_after(jiffies, timeout)) {
/*
* User didn't read the AMTHI data on time (15sec)
* freeing AMTHI for other requests
*/
- dev_dbg(&dev->pdev->dev, "freeing AMTHI for other requests\n");
+ dev_dbg(dev->dev, "freeing AMTHI for other requests\n");
- list_for_each_entry_safe(cb_pos, cb_next,
- &dev->amthif_rd_complete_list.list, list) {
-
- cl = cb_pos->file_object->private_data;
-
- /* Finding the AMTHI entry. */
- if (cl == &dev->iamthif_cl)
- list_del(&cb_pos->list);
- }
+ mei_io_list_flush(&dev->amthif_rd_complete_list,
+ &dev->iamthif_cl);
mei_io_cb_free(dev->iamthif_current_cb);
dev->iamthif_current_cb = NULL;