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Subject[PATCH 04/07] Replace DPRINT with natives in hv_vmbus
Date
Replace all remaining DPRINT calls (excluding the ringbuffer debug
which is going to be done in a next set of patches) with their
native pr_ calls. And also changed some of the printouts to be more
useful.

Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>

---
drivers/staging/hv/channel.c | 9 +++++--
drivers/staging/hv/channel_mgmt.c | 25 ++++++++++-----------
drivers/staging/hv/connection.c | 12 ++++++----
drivers/staging/hv/hv.c | 10 ++++----
drivers/staging/hv/ring_buffer.c | 1 +
drivers/staging/hv/vmbus_drv.c | 43 +++++++++++++++---------------------
6 files changed, 49 insertions(+), 51 deletions(-)

diff --git a/drivers/staging/hv/channel.c b/drivers/staging/hv/channel.c
index c90dbaf..ddadd6e 100644
--- a/drivers/staging/hv/channel.c
+++ b/drivers/staging/hv/channel.c
@@ -18,6 +18,8 @@
* Haiyang Zhang <haiyangz@microsoft.com>
* Hank Janssen <hjanssen@microsoft.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/wait.h>
@@ -898,7 +900,7 @@ int vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
if (userlen > bufferlen) {
spin_unlock_irqrestore(&channel->inbound_lock, flags);

- DPRINT_ERR(VMBUS, "buffer too small - got %d needs %d",
+ pr_err("Buffer too small - got %d needs %d\n",
bufferlen, userlen);
return -1;
}
@@ -950,8 +952,9 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer,
if (packetlen > bufferlen) {
spin_unlock_irqrestore(&channel->inbound_lock, flags);

- DPRINT_ERR(VMBUS, "buffer too small - needed %d bytes but "
- "got space for only %d bytes", packetlen, bufferlen);
+ pr_err("Buffer too small - needed %d bytes but "
+ "got space for only %d bytes\n",
+ packetlen, bufferlen);
return -2;
}

diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c
index ebdd9d8..a75a1ae 100644
--- a/drivers/staging/hv/channel_mgmt.c
+++ b/drivers/staging/hv/channel_mgmt.c
@@ -18,6 +18,8 @@
* Haiyang Zhang <haiyangz@microsoft.com>
* Hank Janssen <hjanssen@microsoft.com>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/wait.h>
@@ -403,8 +405,7 @@ static void vmbus_process_offer(struct work_struct *work)
*/
ret = vmbus_child_device_register(newchannel->device_obj);
if (ret != 0) {
- DPRINT_ERR(VMBUS,
- "unable to add child device object (relid %d)",
+ pr_err("unable to add child device object (relid %d)\n",
newchannel->offermsg.child_relid);

spin_lock_irqsave(&vmbus_connection.channel_lock, flags);
@@ -430,8 +431,9 @@ static void vmbus_process_offer(struct work_struct *work)
hv_cb_utils[cnt].callback,
newchannel) == 0) {
hv_cb_utils[cnt].channel = newchannel;
- DPRINT_INFO(VMBUS, "%s",
- hv_cb_utils[cnt].log_msg);
+
+ pr_info("%s\n", hv_cb_utils[cnt].log_msg);
+
count_hv_channel();
}
}
@@ -472,7 +474,7 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr)
/* Allocate the channel object and save this offer. */
newchannel = alloc_channel();
if (!newchannel) {
- DPRINT_ERR(VMBUS, "unable to allocate channel object");
+ pr_err("Unable to allocate channel object\n");
return;
}

@@ -730,8 +732,7 @@ void vmbus_onmessage(void *context)
size = msg->header.payload_size;

if (hdr->msgtype >= CHANNELMSG_COUNT) {
- DPRINT_ERR(VMBUS,
- "Received invalid channel message type %d size %d",
+ pr_err("Received invalid channel message type %d size %d\n",
hdr->msgtype, size);
print_hex_dump_bytes("", DUMP_PREFIX_NONE,
(unsigned char *)msg->u.payload, size);
@@ -741,8 +742,7 @@ void vmbus_onmessage(void *context)
if (gChannelMessageTable[hdr->msgtype].messageHandler)
gChannelMessageTable[hdr->msgtype].messageHandler(hdr);
else
- DPRINT_ERR(VMBUS, "Unhandled channel message type %d",
- hdr->msgtype);
+ pr_err("Unhandled channel message type %d\n", hdr->msgtype);
}

/*
@@ -770,7 +770,7 @@ int vmbus_request_offers(void)
ret = vmbus_post_msg(msg,
sizeof(struct vmbus_channel_message_header));
if (ret != 0) {
- DPRINT_ERR(VMBUS, "Unable to request offers - %d", ret);
+ pr_err("Unable to request offers - %d\n", ret);

goto cleanup;
}
@@ -810,9 +810,8 @@ void vmbus_release_unattached_channels(void)

if (!channel->device_obj->drv) {
list_del(&channel->listentry);
- DPRINT_INFO(VMBUS,
- "Releasing unattached device object %p",
- channel->device_obj);
+
+ pr_err("Releasing unattached device object\n");

vmbus_child_device_unregister(channel->device_obj);
free_channel(channel);
diff --git a/drivers/staging/hv/connection.c b/drivers/staging/hv/connection.c
index ed2a7a8..7de0780 100644
--- a/drivers/staging/hv/connection.c
+++ b/drivers/staging/hv/connection.c
@@ -20,6 +20,8 @@
* Hank Janssen <hjanssen@microsoft.com>
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/wait.h>
@@ -153,9 +155,9 @@ int vmbus_connect(void)
if (msginfo->response.version_response.version_supported) {
vmbus_connection.conn_state = CONNECTED;
} else {
- DPRINT_ERR(VMBUS, "Vmbus connection failed!!..."
- "current version (%d) not supported",
- VMBUS_REVISION_NUMBER);
+ pr_err("Unable to connect, "
+ "Version %d not supported by Hyper-V\n",
+ VMBUS_REVISION_NUMBER);
ret = -1;
goto Cleanup;
}
@@ -216,7 +218,7 @@ int vmbus_disconnect(void)

vmbus_connection.conn_state = DISCONNECTED;

- DPRINT_INFO(VMBUS, "Vmbus disconnected!!");
+ pr_info("hv_vmbus disconnected\n");

Cleanup:
kfree(msg);
@@ -269,7 +271,7 @@ static void process_chn_event(void *context)
* (void*)channel);
*/
} else {
- DPRINT_ERR(VMBUS, "channel not found for relid - %d.", relid);
+ pr_err("channel not found for relid - %d\n", relid);
}
}

diff --git a/drivers/staging/hv/hv.c b/drivers/staging/hv/hv.c
index d627a83..8898d7f 100644
--- a/drivers/staging/hv/hv.c
+++ b/drivers/staging/hv/hv.c
@@ -19,6 +19,8 @@
* Hank Janssen <hjanssen@microsoft.com>
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/slab.h>
@@ -116,7 +118,7 @@ static int query_hypervisor_info(void)
edx = 0;
op = HVCPUID_VERSION;
cpuid(op, &eax, &ebx, &ecx, &edx);
- DPRINT_INFO(VMBUS, "OS Build:%d-%d.%d-%d-%d.%d",\
+ pr_info("Hyper-V Host OS Build:%d-%d.%d-%d-%d.%d\n",
eax,
ebx >> 16,
ebx & 0xFFFF,
@@ -369,8 +371,7 @@ void hv_synic_init(void *irqarg)
(void *)get_zeroed_page(GFP_ATOMIC);

if (hv_context.synic_message_page[cpu] == NULL) {
- DPRINT_ERR(VMBUS,
- "unable to allocate SYNIC message page!!");
+ pr_err("Unable to allocate SYNIC message page\n");
goto Cleanup;
}

@@ -378,8 +379,7 @@ void hv_synic_init(void *irqarg)
(void *)get_zeroed_page(GFP_ATOMIC);

if (hv_context.synic_event_page[cpu] == NULL) {
- DPRINT_ERR(VMBUS,
- "unable to allocate SYNIC event page!!");
+ pr_err("Unable to allocate SYNIC event page\n");
goto Cleanup;
}

diff --git a/drivers/staging/hv/ring_buffer.c b/drivers/staging/hv/ring_buffer.c
index 9bd5218..66e1b3f 100644
--- a/drivers/staging/hv/ring_buffer.c
+++ b/drivers/staging/hv/ring_buffer.c
@@ -20,6 +20,7 @@
* Hank Janssen <hjanssen@microsoft.com>
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/mm.h>
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index b320f71..cb6dbc0 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -20,6 +20,8 @@
*
* 3/9/2011: K. Y. Srinivasan - Significant restructuring and cleanup
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
@@ -350,18 +352,16 @@ static int vmbus_probe(struct device *child_device)
ret = dev->probe_error =
drv->driver.probe(child_device);
if (ret != 0) {
- DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s "
- "(%p) on driver %s (%d)...",
- dev_name(child_device), child_device,
- child_device->driver->name, ret);
+ pr_err("probe failed for device %s (%d)\n",
+ dev_name(child_device), ret);

INIT_WORK(&dev->probe_failed_work_item,
vmbus_probe_failed_cb);
schedule_work(&dev->probe_failed_work_item);
}
} else {
- DPRINT_ERR(VMBUS_DRV, "probe() method not set for driver - %s",
- child_device->driver->name);
+ pr_err("probe not set for driver %s\n",
+ dev_name(child_device));
ret = -1;
}
return ret;
@@ -386,9 +386,8 @@ static int vmbus_remove(struct device *child_device)
if (drv->driver.remove) {
ret = drv->driver.remove(child_device);
} else {
- DPRINT_ERR(VMBUS_DRV,
- "remove() method not set for driver - %s",
- child_device->driver->name);
+ pr_err("remove not set for driver %s\n",
+ dev_name(child_device));
ret = -1;
}
}
@@ -572,12 +571,10 @@ static int vmbus_bus_init(struct pci_dev *pdev)
/* Hypervisor initialization...setup hypercall page..etc */
ret = hv_init();
if (ret != 0) {
- DPRINT_ERR(VMBUS, "Unable to initialize the hypervisor - 0x%x",
- ret);
+ pr_err("Unable to initialize the hypervisor - 0x%x\n", ret);
goto cleanup;
}

-
hv_bus.bus.name = driver_name;

/* Initialize the bus context */
@@ -599,7 +596,7 @@ static int vmbus_bus_init(struct pci_dev *pdev)
driver_name, pdev);

if (ret != 0) {
- DPRINT_ERR(VMBUS_DRV, "ERROR - Unable to request IRQ %d",
+ pr_err("Unable to request IRQ %d\n",
pdev->irq);

bus_unregister(&hv_bus.bus);
@@ -669,8 +666,7 @@ int vmbus_child_driver_register(struct device_driver *drv)
{
int ret;

- DPRINT_INFO(VMBUS_DRV, "child driver (%p) registering - name %s",
- drv, drv->name);
+ pr_info("child driver registering - name %s\n", drv->name);

/* The child driver on this vmbus */
drv->bus = &hv_bus.bus;
@@ -695,8 +691,7 @@ EXPORT_SYMBOL(vmbus_child_driver_register);
*/
void vmbus_child_driver_unregister(struct device_driver *drv)
{
- DPRINT_INFO(VMBUS_DRV, "child driver (%p) unregistering - name %s",
- drv, drv->name);
+ pr_info("child driver unregistering - name %s\n", drv->name);

driver_unregister(drv);

@@ -717,8 +712,7 @@ struct hv_device *vmbus_child_device_create(struct hv_guid *type,
/* Allocate the new child device */
child_device_obj = kzalloc(sizeof(struct hv_device), GFP_KERNEL);
if (!child_device_obj) {
- DPRINT_ERR(VMBUS_DRV,
- "unable to allocate device_context for child device");
+ pr_err("Unable to allocate device object for child device\n");
return NULL;
}

@@ -759,11 +753,10 @@ int vmbus_child_device_register(struct hv_device *child_device_obj)
ret = child_device_obj->probe_error;

if (ret)
- DPRINT_ERR(VMBUS_DRV, "unable to register child device (%p)",
- &child_device_obj->device);
+ pr_err("Unable to register child device\n");
else
- DPRINT_INFO(VMBUS_DRV, "child device (%p) registered",
- &child_device_obj->device);
+ pr_info("child device %s registered\n",
+ dev_name(&child_device_obj->device));

return ret;
}
@@ -780,8 +773,8 @@ void vmbus_child_device_unregister(struct hv_device *device_obj)
*/
device_unregister(&device_obj->device);

- DPRINT_INFO(VMBUS_DRV, "child device (%p) unregistered",
- &device_obj->device);
+ pr_info("child device %s unregistered\n",
+ dev_name(&device_obj->device));
}


--
1.6.0.2


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