[git patch review 2/4] IB/srp: Semaphore to mutex conversion

[git patch review 2/4] IB/srp: Semaphore to mutex conversion

[Roland Dreier]

Convert srp_host->target_mutex from a semaphore to a mutex.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

---

 drivers/infiniband/ulp/srp/ib_srp.c |   14 +++++++-------
 drivers/infiniband/ulp/srp/ib_srp.h |    5 ++---
 2 files changed, 9 insertions(+), 10 deletions(-)

8e9e5f4f5eb1d44ddabfd1ddea4ca4e4244a9ffb
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 31207e6..2d2d4ac 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -357,9 +357,9 @@ static void srp_remove_work(void *target
 	target->state = SRP_TARGET_REMOVED;
 	spin_unlock_irq(target->scsi_host->host_lock);
 
-	down(&target->srp_host->target_mutex);
+	mutex_lock(&target->srp_host->target_mutex);
 	list_del(&target->list);
-	up(&target->srp_host->target_mutex);
+	mutex_unlock(&target->srp_host->target_mutex);
 
 	scsi_remove_host(target->scsi_host);
 	ib_destroy_cm_id(target->cm_id);
@@ -1254,9 +1254,9 @@ static int srp_add_target(struct srp_hos
 	if (scsi_add_host(target->scsi_host, host->dev->dma_device))
 		return -ENODEV;
 
-	down(&host->target_mutex);
+	mutex_lock(&host->target_mutex);
 	list_add_tail(&target->list, &host->target_list);
-	up(&host->target_mutex);
+	mutex_unlock(&host->target_mutex);
 
 	target->state = SRP_TARGET_LIVE;
 
@@ -1525,7 +1525,7 @@ static struct srp_host *srp_add_port(str
 		return NULL;
 
 	INIT_LIST_HEAD(&host->target_list);
-	init_MUTEX(&host->target_mutex);
+	mutex_init(&host->target_mutex);
 	init_completion(&host->released);
 	host->dev  = device;
 	host->port = port;
@@ -1626,7 +1626,7 @@ static void srp_remove_one(struct ib_dev
 		 * Mark all target ports as removed, so we stop queueing
 		 * commands and don't try to reconnect.
 		 */
-		down(&host->target_mutex);
+		mutex_lock(&host->target_mutex);
 		list_for_each_entry_safe(target, tmp_target,
 					 &host->target_list, list) {
 			spin_lock_irqsave(target->scsi_host->host_lock, flags);
@@ -1634,7 +1634,7 @@ static void srp_remove_one(struct ib_dev
 				target->state = SRP_TARGET_REMOVED;
 			spin_unlock_irqrestore(target->scsi_host->host_lock, flags);
 		}
-		up(&host->target_mutex);
+		mutex_unlock(&host->target_mutex);
 
 		/*
 		 * Wait for any reconnection tasks that may have
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index b564f18..4e7727d 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -37,8 +37,7 @@
 
 #include <linux/types.h>
 #include <linux/list.h>
-
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
@@ -85,7 +84,7 @@ struct srp_host {
 	struct ib_mr	       *mr;
 	struct class_device	class_dev;
 	struct list_head	target_list;
-	struct semaphore        target_mutex;
+	struct mutex            target_mutex;
 	struct completion	released;
 	struct list_head	list;
 };
-- 
1.1.3

[git patch review 1/4] IB/mthca: Relax UAR size check

[Roland Dreier]

There are some cards around that have UAR (user access region) size
different from 8 MB.  Relax our sanity check to make sure that the PCI
BAR is big enough to access the UAR size reported by the device
firmware instead.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

---

 drivers/infiniband/hw/mthca/mthca_main.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

cbd2981a97cb628431a987a8abd1731c74bcc32e
diff --git a/drivers/infiniband/hw/mthca/mthca_main.c b/drivers/infiniband/hw/mthca/mthca_main.c
index 8b00d9a..9c849d2 100644
--- a/drivers/infiniband/hw/mthca/mthca_main.c
+++ b/drivers/infiniband/hw/mthca/mthca_main.c
@@ -155,6 +155,13 @@ static int __devinit mthca_dev_lim(struc
 		return -ENODEV;
 	}
 
+	if (dev_lim->uar_size > pci_resource_len(mdev->pdev, 2)) {
+		mthca_err(mdev, "HCA reported UAR size of 0x%x bigger than "
+			  "PCI resource 2 size of 0x%lx, aborting.\n",
+			  dev_lim->uar_size, pci_resource_len(mdev->pdev, 2));
+		return -ENODEV;
+	}
+
 	mdev->limits.num_ports      	= dev_lim->num_ports;
 	mdev->limits.vl_cap             = dev_lim->max_vl;
 	mdev->limits.mtu_cap            = dev_lim->max_mtu;
@@ -976,8 +983,7 @@ static int __devinit mthca_init_one(stru
 		err = -ENODEV;
 		goto err_disable_pdev;
 	}
-	if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM) ||
-	    pci_resource_len(pdev, 2) != 1 << 23) {
+	if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
 		dev_err(&pdev->dev, "Missing UAR, aborting.\n");
 		err = -ENODEV;
 		goto err_disable_pdev;
-- 
1.1.3

[git patch review 3/4] IB/mthca: Don't cancel commands on a signal

[Roland Dreier]

We have run into the following problem: if a task receives a signal
while in the process of e.g. destroying a resource (which could be
because the relevant file was closed) mthca could bail out from trying
to take a command interface semaphore without performing the
appropriate command to tell hardware that the resource is being
destroyed.

As a result we see messages like
 ib_mthca 0000:04:00.0: HW2SW_CQ failed (-4)

In this case, hardware could access the resource after the memory has
been freed, possibly causing memory corruption.

A simple solution is to replace down_interruptible() by down() in
command interface activation.

Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
[ It's also not safe to bail out on multicast table operations, since
  they may be invoked on the cleanup path too.  So use down() for
  mcg_table.sem too. ]
Signed-off-by: Roland Dreier <rolandd@cisco.com>

---

 drivers/infiniband/hw/mthca/mthca_cmd.c |    9 +++------
 drivers/infiniband/hw/mthca/mthca_mcg.c |   14 ++++----------
 2 files changed, 7 insertions(+), 16 deletions(-)

e3aa31c517cb6fd0a3d8b23e6a7e71a6aafc2393
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index be1791b..69128fe 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -199,8 +199,7 @@ static int mthca_cmd_post(struct mthca_d
 {
 	int err = 0;
 
-	if (down_interruptible(&dev->cmd.hcr_sem))
-		return -EINTR;
+	down(&dev->cmd.hcr_sem);
 
 	if (event) {
 		unsigned long end = jiffies + GO_BIT_TIMEOUT;
@@ -255,8 +254,7 @@ static int mthca_cmd_poll(struct mthca_d
 	int err = 0;
 	unsigned long end;
 
-	if (down_interruptible(&dev->cmd.poll_sem))
-		return -EINTR;
+	down(&dev->cmd.poll_sem);
 
 	err = mthca_cmd_post(dev, in_param,
 			     out_param ? *out_param : 0,
@@ -333,8 +331,7 @@ static int mthca_cmd_wait(struct mthca_d
 	int err = 0;
 	struct mthca_cmd_context *context;
 
-	if (down_interruptible(&dev->cmd.event_sem))
-		return -EINTR;
+	down(&dev->cmd.event_sem);
 
 	spin_lock(&dev->cmd.context_lock);
 	BUG_ON(dev->cmd.free_head < 0);
diff --git a/drivers/infiniband/hw/mthca/mthca_mcg.c b/drivers/infiniband/hw/mthca/mthca_mcg.c
index 77bc6c7..55ff5e5 100644
--- a/drivers/infiniband/hw/mthca/mthca_mcg.c
+++ b/drivers/infiniband/hw/mthca/mthca_mcg.c
@@ -154,10 +154,7 @@ int mthca_multicast_attach(struct ib_qp 
 		return PTR_ERR(mailbox);
 	mgm = mailbox->buf;
 
-	if (down_interruptible(&dev->mcg_table.sem)) {
-		err = -EINTR;
-		goto err_sem;
-	}
+	down(&dev->mcg_table.sem);
 
 	err = find_mgm(dev, gid->raw, mailbox, &hash, &prev, &index);
 	if (err)
@@ -242,7 +239,7 @@ int mthca_multicast_attach(struct ib_qp 
 		mthca_free(&dev->mcg_table.alloc, index);
 	}
 	up(&dev->mcg_table.sem);
- err_sem:
+
 	mthca_free_mailbox(dev, mailbox);
 	return err;
 }
@@ -263,10 +260,7 @@ int mthca_multicast_detach(struct ib_qp 
 		return PTR_ERR(mailbox);
 	mgm = mailbox->buf;
 
-	if (down_interruptible(&dev->mcg_table.sem)) {
-		err = -EINTR;
-		goto err_sem;
-	}
+	down(&dev->mcg_table.sem);
 
 	err = find_mgm(dev, gid->raw, mailbox, &hash, &prev, &index);
 	if (err)
@@ -372,7 +366,7 @@ int mthca_multicast_detach(struct ib_qp 
 
  out:
 	up(&dev->mcg_table.sem);
- err_sem:
+
 	mthca_free_mailbox(dev, mailbox);
 	return err;
 }
-- 
1.1.3

[git patch review 4/4] IB/mthca: Semaphore to mutex conversions

[Roland Dreier]

Convert semaphores to mutexes in mthca.  Leave firmware command
interface poll_sem and event_sem as semaphores.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

---

 drivers/infiniband/hw/mthca/mthca_cmd.c      |    6 ++--
 drivers/infiniband/hw/mthca/mthca_dev.h      |    8 ++++--
 drivers/infiniband/hw/mthca/mthca_mcg.c      |   10 ++++---
 drivers/infiniband/hw/mthca/mthca_memfree.c  |   36 +++++++++++++-------------
 drivers/infiniband/hw/mthca/mthca_memfree.h  |    7 ++---
 drivers/infiniband/hw/mthca/mthca_provider.c |    6 ++--
 6 files changed, 37 insertions(+), 36 deletions(-)

fd9cfdd11be3b37b5c919b64b43990f14a1587bd
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index 69128fe..f9b9b93 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -199,7 +199,7 @@ static int mthca_cmd_post(struct mthca_d
 {
 	int err = 0;
 
-	down(&dev->cmd.hcr_sem);
+	mutex_lock(&dev->cmd.hcr_mutex);
 
 	if (event) {
 		unsigned long end = jiffies + GO_BIT_TIMEOUT;
@@ -237,7 +237,7 @@ static int mthca_cmd_post(struct mthca_d
 					       op),                       dev->hcr + 6 * 4);
 
 out:
-	up(&dev->cmd.hcr_sem);
+	mutex_unlock(&dev->cmd.hcr_mutex);
 	return err;
 }
 
@@ -435,7 +435,7 @@ static int mthca_cmd_imm(struct mthca_de
 
 int mthca_cmd_init(struct mthca_dev *dev)
 {
-	sema_init(&dev->cmd.hcr_sem, 1);
+	mutex_init(&dev->cmd.hcr_mutex);
 	sema_init(&dev->cmd.poll_sem, 1);
 	dev->cmd.use_events = 0;
 
diff --git a/drivers/infiniband/hw/mthca/mthca_dev.h b/drivers/infiniband/hw/mthca/mthca_dev.h
index a104ab0..2a165fd 100644
--- a/drivers/infiniband/hw/mthca/mthca_dev.h
+++ b/drivers/infiniband/hw/mthca/mthca_dev.h
@@ -44,6 +44,8 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/timer.h>
+#include <linux/mutex.h>
+
 #include <asm/semaphore.h>
 
 #include "mthca_provider.h"
@@ -111,7 +113,7 @@ enum {
 struct mthca_cmd {
 	struct pci_pool          *pool;
 	int                       use_events;
-	struct semaphore          hcr_sem;
+	struct mutex              hcr_mutex;
 	struct semaphore 	  poll_sem;
 	struct semaphore 	  event_sem;
 	int              	  max_cmds;
@@ -256,7 +258,7 @@ struct mthca_av_table {
 };
 
 struct mthca_mcg_table {
-	struct semaphore   	sem;
+	struct mutex		mutex;
 	struct mthca_alloc 	alloc;
 	struct mthca_icm_table *table;
 };
@@ -301,7 +303,7 @@ struct mthca_dev {
 	u64              ddr_end;
 
 	MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
-	struct semaphore cap_mask_mutex;
+	struct mutex cap_mask_mutex;
 
 	void __iomem    *hcr;
 	void __iomem    *kar;
diff --git a/drivers/infiniband/hw/mthca/mthca_mcg.c b/drivers/infiniband/hw/mthca/mthca_mcg.c
index 55ff5e5..321f11e 100644
--- a/drivers/infiniband/hw/mthca/mthca_mcg.c
+++ b/drivers/infiniband/hw/mthca/mthca_mcg.c
@@ -154,7 +154,7 @@ int mthca_multicast_attach(struct ib_qp 
 		return PTR_ERR(mailbox);
 	mgm = mailbox->buf;
 
-	down(&dev->mcg_table.sem);
+	mutex_lock(&dev->mcg_table.mutex);
 
 	err = find_mgm(dev, gid->raw, mailbox, &hash, &prev, &index);
 	if (err)
@@ -238,7 +238,7 @@ int mthca_multicast_attach(struct ib_qp 
 		BUG_ON(index < dev->limits.num_mgms);
 		mthca_free(&dev->mcg_table.alloc, index);
 	}
-	up(&dev->mcg_table.sem);
+	mutex_unlock(&dev->mcg_table.mutex);
 
 	mthca_free_mailbox(dev, mailbox);
 	return err;
@@ -260,7 +260,7 @@ int mthca_multicast_detach(struct ib_qp 
 		return PTR_ERR(mailbox);
 	mgm = mailbox->buf;
 
-	down(&dev->mcg_table.sem);
+	mutex_lock(&dev->mcg_table.mutex);
 
 	err = find_mgm(dev, gid->raw, mailbox, &hash, &prev, &index);
 	if (err)
@@ -365,7 +365,7 @@ int mthca_multicast_detach(struct ib_qp 
 	}
 
  out:
-	up(&dev->mcg_table.sem);
+	mutex_unlock(&dev->mcg_table.mutex);
 
 	mthca_free_mailbox(dev, mailbox);
 	return err;
@@ -383,7 +383,7 @@ int __devinit mthca_init_mcg_table(struc
 	if (err)
 		return err;
 
-	init_MUTEX(&dev->mcg_table.sem);
+	mutex_init(&dev->mcg_table.mutex);
 
 	return 0;
 }
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 9fb985a..d709cb1 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -50,7 +50,7 @@ enum {
 };
 
 struct mthca_user_db_table {
-	struct semaphore mutex;
+	struct mutex mutex;
 	struct {
 		u64                uvirt;
 		struct scatterlist mem;
@@ -158,7 +158,7 @@ int mthca_table_get(struct mthca_dev *de
 	int ret = 0;
 	u8 status;
 
-	down(&table->mutex);
+	mutex_lock(&table->mutex);
 
 	if (table->icm[i]) {
 		++table->icm[i]->refcount;
@@ -184,7 +184,7 @@ int mthca_table_get(struct mthca_dev *de
 	++table->icm[i]->refcount;
 
 out:
-	up(&table->mutex);
+	mutex_unlock(&table->mutex);
 	return ret;
 }
 
@@ -198,7 +198,7 @@ void mthca_table_put(struct mthca_dev *d
 
 	i = (obj & (table->num_obj - 1)) * table->obj_size / MTHCA_TABLE_CHUNK_SIZE;
 
-	down(&table->mutex);
+	mutex_lock(&table->mutex);
 
 	if (--table->icm[i]->refcount == 0) {
 		mthca_UNMAP_ICM(dev, table->virt + i * MTHCA_TABLE_CHUNK_SIZE,
@@ -207,7 +207,7 @@ void mthca_table_put(struct mthca_dev *d
 		table->icm[i] = NULL;
 	}
 
-	up(&table->mutex);
+	mutex_unlock(&table->mutex);
 }
 
 void *mthca_table_find(struct mthca_icm_table *table, int obj)
@@ -220,7 +220,7 @@ void *mthca_table_find(struct mthca_icm_
 	if (!table->lowmem)
 		return NULL;
 
-	down(&table->mutex);
+	mutex_lock(&table->mutex);
 
 	idx = (obj & (table->num_obj - 1)) * table->obj_size;
 	icm = table->icm[idx / MTHCA_TABLE_CHUNK_SIZE];
@@ -240,7 +240,7 @@ void *mthca_table_find(struct mthca_icm_
 	}
 
 out:
-	up(&table->mutex);
+	mutex_unlock(&table->mutex);
 	return page ? lowmem_page_address(page) + offset : NULL;
 }
 
@@ -301,7 +301,7 @@ struct mthca_icm_table *mthca_alloc_icm_
 	table->num_obj  = nobj;
 	table->obj_size = obj_size;
 	table->lowmem   = use_lowmem;
-	init_MUTEX(&table->mutex);
+	mutex_init(&table->mutex);
 
 	for (i = 0; i < num_icm; ++i)
 		table->icm[i] = NULL;
@@ -380,7 +380,7 @@ int mthca_map_user_db(struct mthca_dev *
 	if (index < 0 || index > dev->uar_table.uarc_size / 8)
 		return -EINVAL;
 
-	down(&db_tab->mutex);
+	mutex_lock(&db_tab->mutex);
 
 	i = index / MTHCA_DB_REC_PER_PAGE;
 
@@ -424,7 +424,7 @@ int mthca_map_user_db(struct mthca_dev *
 	db_tab->page[i].refcount = 1;
 
 out:
-	up(&db_tab->mutex);
+	mutex_unlock(&db_tab->mutex);
 	return ret;
 }
 
@@ -439,11 +439,11 @@ void mthca_unmap_user_db(struct mthca_de
 	 * pages until we clean up the whole db table.
 	 */
 
-	down(&db_tab->mutex);
+	mutex_lock(&db_tab->mutex);
 
 	--db_tab->page[index / MTHCA_DB_REC_PER_PAGE].refcount;
 
-	up(&db_tab->mutex);
+	mutex_unlock(&db_tab->mutex);
 }
 
 struct mthca_user_db_table *mthca_init_user_db_tab(struct mthca_dev *dev)
@@ -460,7 +460,7 @@ struct mthca_user_db_table *mthca_init_u
 	if (!db_tab)
 		return ERR_PTR(-ENOMEM);
 
-	init_MUTEX(&db_tab->mutex);
+	mutex_init(&db_tab->mutex);
 	for (i = 0; i < npages; ++i) {
 		db_tab->page[i].refcount = 0;
 		db_tab->page[i].uvirt    = 0;
@@ -499,7 +499,7 @@ int mthca_alloc_db(struct mthca_dev *dev
 	int ret = 0;
 	u8 status;
 
-	down(&dev->db_tab->mutex);
+	mutex_lock(&dev->db_tab->mutex);
 
 	switch (type) {
 	case MTHCA_DB_TYPE_CQ_ARM:
@@ -585,7 +585,7 @@ found:
 	*db = (__be32 *) &page->db_rec[j];
 
 out:
-	up(&dev->db_tab->mutex);
+	mutex_unlock(&dev->db_tab->mutex);
 
 	return ret;
 }
@@ -601,7 +601,7 @@ void mthca_free_db(struct mthca_dev *dev
 
 	page = dev->db_tab->page + i;
 
-	down(&dev->db_tab->mutex);
+	mutex_lock(&dev->db_tab->mutex);
 
 	page->db_rec[j] = 0;
 	if (i >= dev->db_tab->min_group2)
@@ -624,7 +624,7 @@ void mthca_free_db(struct mthca_dev *dev
 			++dev->db_tab->min_group2;
 	}
 
-	up(&dev->db_tab->mutex);
+	mutex_unlock(&dev->db_tab->mutex);
 }
 
 int mthca_init_db_tab(struct mthca_dev *dev)
@@ -638,7 +638,7 @@ int mthca_init_db_tab(struct mthca_dev *
 	if (!dev->db_tab)
 		return -ENOMEM;
 
-	init_MUTEX(&dev->db_tab->mutex);
+	mutex_init(&dev->db_tab->mutex);
 
 	dev->db_tab->npages     = dev->uar_table.uarc_size / 4096;
 	dev->db_tab->max_group1 = 0;
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.h b/drivers/infiniband/hw/mthca/mthca_memfree.h
index 4fdca26..36f1141 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.h
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.h
@@ -39,8 +39,7 @@
 
 #include <linux/list.h>
 #include <linux/pci.h>
-
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 
 #define MTHCA_ICM_CHUNK_LEN \
 	((256 - sizeof (struct list_head) - 2 * sizeof (int)) /		\
@@ -64,7 +63,7 @@ struct mthca_icm_table {
 	int               num_obj;
 	int               obj_size;
 	int               lowmem;
-	struct semaphore  mutex;
+	struct mutex      mutex;
 	struct mthca_icm *icm[0];
 };
 
@@ -147,7 +146,7 @@ struct mthca_db_table {
 	int 	       	      max_group1;
 	int 	       	      min_group2;
 	struct mthca_db_page *page;
-	struct semaphore      mutex;
+	struct mutex          mutex;
 };
 
 enum mthca_db_type {
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 484a7e6..e88e39a 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -185,7 +185,7 @@ static int mthca_modify_port(struct ib_d
 	int err;
 	u8 status;
 
-	if (down_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
+	if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex))
 		return -ERESTARTSYS;
 
 	err = mthca_query_port(ibdev, port, &attr);
@@ -207,7 +207,7 @@ static int mthca_modify_port(struct ib_d
 	}
 
 out:
-	up(&to_mdev(ibdev)->cap_mask_mutex);
+	mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
 	return err;
 }
 
@@ -1185,7 +1185,7 @@ int mthca_register_device(struct mthca_d
 		dev->ib_dev.post_recv     = mthca_tavor_post_receive;
 	}
 
-	init_MUTEX(&dev->cap_mask_mutex);
+	mutex_init(&dev->cap_mask_mutex);
 
 	ret = ib_register_device(&dev->ib_dev);
 	if (ret)
-- 
1.1.3