mtip32xx: ensure that all local functions are static

Kill the declarations in the header file and mark them as static.
Reshuffle a few functions to ensure that everything is properly
declared before being used.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

2 files changed, 313 insertions, 352 deletions

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index d58581b83c8d..40d840e56256 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -108,6 +108,72 @@ static int mtip_exec_internal_command(struct mtip_port *port,
                                 unsigned long timeout);
 
 /*
+ * This function check_for_surprise_removal is called
+ * while card is removed from the system and it will
+ * read the vendor id from the configration space
+ *
+ * @pdev Pointer to the pci_dev structure.
+ *
+ * return value
+ *       true if device removed, else false
+ */
+static bool mtip_check_surprise_removal(struct pci_dev *pdev)
+{
+        u16 vendor_id = 0;
+
+       /* Read the vendorID from the configuration space */
+        pci_read_config_word(pdev, 0x00, &vendor_id);
+        if (vendor_id == 0xFFFF)
+                return true; /* device removed */
+
+        return false; /* device present */
+}
+
+/*
+ * This function is called for clean the pending command in the
+ * command slot during the surprise removal of device and return
+ * error to the upper layer.
+ *
+ * @dd Pointer to the DRIVER_DATA structure.
+ *
+ * return value
+ *      None
+ */
+static void mtip_command_cleanup(struct driver_data *dd)
+{
+        int group = 0, commandslot = 0, commandindex = 0;
+        struct mtip_cmd *command;
+        struct mtip_port *port = dd->port;
+
+        for (group = 0; group < 4; group++) {
+                for (commandslot = 0; commandslot < 32; commandslot++) {
+                        if (!(port->allocated[group] & (1 << commandslot)))
+                                continue;
+
+                        commandindex = group << 5 | commandslot;
+                        command = &port->commands[commandindex];
+
+                        if (atomic_read(&command->active)
+                            && (command->async_callback)) {
+                                command->async_callback(command->async_data,
+                                        -ENODEV);
+                                command->async_callback = NULL;
+                                command->async_data = NULL;
+                        }
+
+                        dma_unmap_sg(&port->dd->pdev->dev,
+                                command->sg,
+                                command->scatter_ents,
+                                command->direction);
+                }
+        }
+
+        up(&port->cmd_slot);
+
+        atomic_set(&dd->drv_cleanup_done, true);
+}
+
+/*
  * Obtain an empty command slot.
  *
  * This function needs to be reentrant since it could be called
@@ -167,214 +233,72 @@ static inline void release_slot(struct mtip_port *port, int tag)
 }
 
 /*
- * Issue a command to the hardware.
- *
- * Set the appropriate bit in the s_active and Command Issue hardware
- * registers, causing hardware command processing to begin.
- *
- * @port Pointer to the port structure.
- * @tag  The tag of the command to be issued.
+ * Reset the HBA (without sleeping)
  *
- * return value
- *      None
- */
-static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag)
-{
-        unsigned long flags = 0;
-
-        atomic_set(&port->commands[tag].active, 1);
-
-        spin_lock_irqsave(&port->cmd_issue_lock, flags);
-
-        writel((1 << MTIP_TAG_BIT(tag)),
-                        port->s_active[MTIP_TAG_INDEX(tag)]);
-        writel((1 << MTIP_TAG_BIT(tag)),
-                        port->cmd_issue[MTIP_TAG_INDEX(tag)]);
-
-        spin_unlock_irqrestore(&port->cmd_issue_lock, flags);
-}
-
-/*
- * Called periodically to see if any read/write commands are
- * taking too long to complete.
+ * Just like hba_reset, except does not call sleep, so can be
+ * run from interrupt/tasklet context.
  *
- * @data Pointer to the PORT data structure.
+ * @dd Pointer to the driver data structure.
  *
  * return value
- *      None
+ *      0       The reset was successful.
+ *      -1      The HBA Reset bit did not clear.
  */
-void mtip_timeout_function(unsigned long int data)
+static int hba_reset_nosleep(struct driver_data *dd)
 {
-        struct mtip_port *port = (struct mtip_port *) data;
-        struct host_to_dev_fis *fis;
-        struct mtip_cmd *command;
-        int tag, cmdto_cnt = 0;
-        unsigned int bit, group;
-        unsigned int num_command_slots = port->dd->slot_groups * 32;
-
-        if (unlikely(!port))
-                return;
-
-        if (atomic_read(&port->dd->resumeflag) == true) {
-                mod_timer(&port->cmd_timer,
-                        jiffies + msecs_to_jiffies(30000));
-                return;
-        }
-
-        for (tag = 0; tag < num_command_slots; tag++) {
-                /*
-                 * Skip internal command slot as it has
-                 * its own timeout mechanism
-                 */
-                if (tag == MTIP_TAG_INTERNAL)
-                        continue;
-
-                if (atomic_read(&port->commands[tag].active) &&
-                   (time_after(jiffies, port->commands[tag].comp_time))) {
-                        group = tag >> 5;
-                        bit = tag & 0x1f;
-
-                        command = &port->commands[tag];
-                        fis = (struct host_to_dev_fis *) command->command;
-
-                        dev_warn(&port->dd->pdev->dev,
-                                "Timeout for command tag %d\n", tag);
-
-                        cmdto_cnt++;
-                        if (cmdto_cnt == 1)
-                                atomic_inc(&port->dd->eh_active);
-
-                        /*
-                         * Clear the completed bit. This should prevent
-                         *  any interrupt handlers from trying to retire
-                         *  the command.
-                         */
-                        writel(1 << bit, port->completed[group]);
+        unsigned long timeout;
 
-                        /* Call the async completion callback. */
-                        if (likely(command->async_callback))
-                                command->async_callback(command->async_data,
-                                                         -EIO);
-                        command->async_callback = NULL;
-                        command->comp_func = NULL;
+        /* Chip quirk: quiesce any chip function */
+        mdelay(10);
 
-                        /* Unmap the DMA scatter list entries */
-                        dma_unmap_sg(&port->dd->pdev->dev,
-                                        command->sg,
-                                        command->scatter_ents,
-                                        command->direction);
+        /* Set the reset bit */
+        writel(HOST_RESET, dd->mmio + HOST_CTL);
 
-                        /*
-                         * Clear the allocated bit and active tag for the
-                         * command.
-                         */
-                        atomic_set(&port->commands[tag].active, 0);
-                        release_slot(port, tag);
+        /* Flush */
+        readl(dd->mmio + HOST_CTL);
 
-                        up(&port->cmd_slot);
-                }
-        }
+        /*
+         * Wait 10ms then spin for up to 1 second
+         * waiting for reset acknowledgement
+         */
+        timeout = jiffies + msecs_to_jiffies(1000);
+        mdelay(10);
+        while ((readl(dd->mmio + HOST_CTL) & HOST_RESET)
+                 && time_before(jiffies, timeout))
+                mdelay(1);
 
-        if (cmdto_cnt) {
-                dev_warn(&port->dd->pdev->dev,
-                        "%d commands timed out: restarting port",
-                        cmdto_cnt);
-                mtip_restart_port(port);
-                atomic_dec(&port->dd->eh_active);
-        }
+        if (readl(dd->mmio + HOST_CTL) & HOST_RESET)
+                return -1;
 
-        /* Restart the timer */
-        mod_timer(&port->cmd_timer,
-                jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD));
+        return 0;
 }
 
 /*
- * IO completion function.
+ * Issue a command to the hardware.
  *
- * This completion function is called by the driver ISR when a
- * command that was issued by the kernel completes. It first calls the
- * asynchronous completion function which normally calls back into the block
- * layer passing the asynchronous callback data, then unmaps the
- * scatter list associated with the completed command, and finally
- * clears the allocated bit associated with the completed command.
+ * Set the appropriate bit in the s_active and Command Issue hardware
+ * registers, causing hardware command processing to begin.
  *
- * @port   Pointer to the port data structure.
- * @tag    Tag of the command.
- * @data   Pointer to driver_data.
- * @status Completion status.
+ * @port Pointer to the port structure.
+ * @tag  The tag of the command to be issued.
  *
  * return value
- *      None
+ *      None
  */
-static void mtip_async_complete(struct mtip_port *port,
-                                int tag,
-                                void *data,
-                                int status)
+static inline void mtip_issue_ncq_command(struct mtip_port *port, int tag)
 {
-        struct mtip_cmd *command;
-        struct driver_data *dd = data;
-        int cb_status = status ? -EIO : 0;
-
-        if (unlikely(!dd) || unlikely(!port))
-                return;
-
-        command = &port->commands[tag];
-
-        if (unlikely(status == PORT_IRQ_TF_ERR)) {
-                dev_warn(&port->dd->pdev->dev,
-                        "Command tag %d failed due to TFE\n", tag);
-        }
-
-        /* Upper layer callback */
-        if (likely(command->async_callback))
-                command->async_callback(command->async_data, cb_status);
-
-        command->async_callback = NULL;
-        command->comp_func = NULL;
-
-        /* Unmap the DMA scatter list entries */
-        dma_unmap_sg(&dd->pdev->dev,
-                command->sg,
-                command->scatter_ents,
-                command->direction);
-
-        /* Clear the allocated and active bits for the command */
-        atomic_set(&port->commands[tag].active, 0);
-        release_slot(port, tag);
+        unsigned long flags = 0;
 
-        up(&port->cmd_slot);
-}
+        atomic_set(&port->commands[tag].active, 1);
 
-/*
- * Internal command completion callback function.
- *
- * This function is normally called by the driver ISR when an internal
- * command completed. This function signals the command completion by
- * calling complete().
- *
- * @port   Pointer to the port data structure.
- * @tag    Tag of the command that has completed.
- * @data   Pointer to a completion structure.
- * @status Completion status.
- *
- * return value
- *      None
- */
-static void mtip_completion(struct mtip_port *port,
-                            int tag,
-                            void *data,
-                            int status)
-{
-        struct mtip_cmd *command = &port->commands[tag];
-        struct completion *waiting = data;
-        if (unlikely(status == PORT_IRQ_TF_ERR))
-                dev_warn(&port->dd->pdev->dev,
-                        "Internal command %d completed with TFE\n", tag);
+        spin_lock_irqsave(&port->cmd_issue_lock, flags);
 
-        command->async_callback = NULL;
-        command->comp_func = NULL;
+        writel((1 << MTIP_TAG_BIT(tag)),
+                        port->s_active[MTIP_TAG_INDEX(tag)]);
+        writel((1 << MTIP_TAG_BIT(tag)),
+                        port->cmd_issue[MTIP_TAG_INDEX(tag)]);
 
-        complete(waiting);
+        spin_unlock_irqrestore(&port->cmd_issue_lock, flags);
 }
 
 /*
@@ -508,47 +432,6 @@ static void mtip_init_port(struct mtip_port *port)
 }
 
 /*
- * Reset the HBA (without sleeping)
- *
- * Just like hba_reset, except does not call sleep, so can be
- * run from interrupt/tasklet context.
- *
- * @dd Pointer to the driver data structure.
- *
- * return value
- *      0       The reset was successful.
- *      -1      The HBA Reset bit did not clear.
- */
-int hba_reset_nosleep(struct driver_data *dd)
-{
-        unsigned long timeout;
-
-        /* Chip quirk: quiesce any chip function */
-        mdelay(10);
-
-        /* Set the reset bit */
-        writel(HOST_RESET, dd->mmio + HOST_CTL);
-
-        /* Flush */
-        readl(dd->mmio + HOST_CTL);
-
-        /*
-         * Wait 10ms then spin for up to 1 second
-         * waiting for reset acknowledgement
-         */
-        timeout = jiffies + msecs_to_jiffies(1000);
-        mdelay(10);
-        while ((readl(dd->mmio + HOST_CTL) & HOST_RESET)
-                 && time_before(jiffies, timeout))
-                mdelay(1);
-
-        if (readl(dd->mmio + HOST_CTL) & HOST_RESET)
-                return -1;
-
-        return 0;
-}
-
-/*
  * Restart a port
  *
  * @port Pointer to the port data structure.
@@ -556,7 +439,7 @@ int hba_reset_nosleep(struct driver_data *dd)
  * return value
  *      None
  */
-void mtip_restart_port(struct mtip_port *port)
+static void mtip_restart_port(struct mtip_port *port)
 {
         unsigned long timeout;
 
@@ -620,6 +503,189 @@ void mtip_restart_port(struct mtip_port *port)
 }
 
 /*
+ * Called periodically to see if any read/write commands are
+ * taking too long to complete.
+ *
+ * @data Pointer to the PORT data structure.
+ *
+ * return value
+ *      None
+ */
+static void mtip_timeout_function(unsigned long int data)
+{
+        struct mtip_port *port = (struct mtip_port *) data;
+        struct host_to_dev_fis *fis;
+        struct mtip_cmd *command;
+        int tag, cmdto_cnt = 0;
+        unsigned int bit, group;
+        unsigned int num_command_slots = port->dd->slot_groups * 32;
+
+        if (unlikely(!port))
+                return;
+
+        if (atomic_read(&port->dd->resumeflag) == true) {
+                mod_timer(&port->cmd_timer,
+                        jiffies + msecs_to_jiffies(30000));
+                return;
+        }
+
+        for (tag = 0; tag < num_command_slots; tag++) {
+                /*
+                 * Skip internal command slot as it has
+                 * its own timeout mechanism
+                 */
+                if (tag == MTIP_TAG_INTERNAL)
+                        continue;
+
+                if (atomic_read(&port->commands[tag].active) &&
+                   (time_after(jiffies, port->commands[tag].comp_time))) {
+                        group = tag >> 5;
+                        bit = tag & 0x1f;
+
+                        command = &port->commands[tag];
+                        fis = (struct host_to_dev_fis *) command->command;
+
+                        dev_warn(&port->dd->pdev->dev,
+                                "Timeout for command tag %d\n", tag);
+
+                        cmdto_cnt++;
+                        if (cmdto_cnt == 1)
+                                atomic_inc(&port->dd->eh_active);
+
+                        /*
+                         * Clear the completed bit. This should prevent
+                         *  any interrupt handlers from trying to retire
+                         *  the command.
+                         */
+                        writel(1 << bit, port->completed[group]);
+
+                        /* Call the async completion callback. */
+                        if (likely(command->async_callback))
+                                command->async_callback(command->async_data,
+                                                         -EIO);
+                        command->async_callback = NULL;
+                        command->comp_func = NULL;
+
+                        /* Unmap the DMA scatter list entries */
+                        dma_unmap_sg(&port->dd->pdev->dev,
+                                        command->sg,
+                                        command->scatter_ents,
+                                        command->direction);
+
+                        /*
+                         * Clear the allocated bit and active tag for the
+                         * command.
+                         */
+                        atomic_set(&port->commands[tag].active, 0);
+                        release_slot(port, tag);
+
+                        up(&port->cmd_slot);
+                }
+        }
+
+        if (cmdto_cnt) {
+                dev_warn(&port->dd->pdev->dev,
+                        "%d commands timed out: restarting port",
+                        cmdto_cnt);
+                mtip_restart_port(port);
+                atomic_dec(&port->dd->eh_active);
+        }
+
+        /* Restart the timer */
+        mod_timer(&port->cmd_timer,
+                jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD));
+}
+
+/*
+ * IO completion function.
+ *
+ * This completion function is called by the driver ISR when a
+ * command that was issued by the kernel completes. It first calls the
+ * asynchronous completion function which normally calls back into the block
+ * layer passing the asynchronous callback data, then unmaps the
+ * scatter list associated with the completed command, and finally
+ * clears the allocated bit associated with the completed command.
+ *
+ * @port   Pointer to the port data structure.
+ * @tag    Tag of the command.
+ * @data   Pointer to driver_data.
+ * @status Completion status.
+ *
+ * return value
+ *      None
+ */
+static void mtip_async_complete(struct mtip_port *port,
+                                int tag,
+                                void *data,
+                                int status)
+{
+        struct mtip_cmd *command;
+        struct driver_data *dd = data;
+        int cb_status = status ? -EIO : 0;
+
+        if (unlikely(!dd) || unlikely(!port))
+                return;
+
+        command = &port->commands[tag];
+
+        if (unlikely(status == PORT_IRQ_TF_ERR)) {
+                dev_warn(&port->dd->pdev->dev,
+                        "Command tag %d failed due to TFE\n", tag);
+        }
+
+        /* Upper layer callback */
+        if (likely(command->async_callback))
+                command->async_callback(command->async_data, cb_status);
+
+        command->async_callback = NULL;
+        command->comp_func = NULL;
+
+        /* Unmap the DMA scatter list entries */
+        dma_unmap_sg(&dd->pdev->dev,
+                command->sg,
+                command->scatter_ents,
+                command->direction);
+
+        /* Clear the allocated and active bits for the command */
+        atomic_set(&port->commands[tag].active, 0);
+        release_slot(port, tag);
+
+        up(&port->cmd_slot);
+}
+
+/*
+ * Internal command completion callback function.
+ *
+ * This function is normally called by the driver ISR when an internal
+ * command completed. This function signals the command completion by
+ * calling complete().
+ *
+ * @port   Pointer to the port data structure.
+ * @tag    Tag of the command that has completed.
+ * @data   Pointer to a completion structure.
+ * @status Completion status.
+ *
+ * return value
+ *      None
+ */
+static void mtip_completion(struct mtip_port *port,
+                            int tag,
+                            void *data,
+                            int status)
+{
+        struct mtip_cmd *command = &port->commands[tag];
+        struct completion *waiting = data;
+        if (unlikely(status == PORT_IRQ_TF_ERR))
+                dev_warn(&port->dd->pdev->dev,
+                        "Internal command %d completed with TFE\n", tag);
+
+        command->async_callback = NULL;
+        command->comp_func = NULL;
+
+        complete(waiting);
+}
+
+/*
  * Helper function for tag logging
  */
 static void print_tags(struct driver_data *dd,
@@ -1276,7 +1342,7 @@ static int mtip_standby_immediate(struct mtip_port *port)
  *      1 Capacity was returned successfully.
  *      0 The identify information is invalid.
  */
-bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors)
+static bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors)
 {
         struct mtip_port *port = dd->port;
         u64 total, raw0, raw1, raw2, raw3;
@@ -1423,7 +1489,7 @@ static inline void fill_command_sg(struct driver_data *dd,
  * return value 0 The command completed successfully.
  * return value -1 An error occurred while executing the command.
  */
-int exec_drive_task(struct mtip_port *port, u8 *command)
+static int exec_drive_task(struct mtip_port *port, u8 *command)
 {
         struct host_to_dev_fis  fis;
         struct host_to_dev_fis *reply = (port->rxfis + RX_FIS_D2H_REG);
@@ -1499,8 +1565,8 @@ int exec_drive_task(struct mtip_port *port, u8 *command)
  *                 data to the user space buffer.
  * return value -1 An error occurred while executing the command.
  */
-int exec_drive_command(struct mtip_port *port, u8 *command,
-                        void __user *user_buffer)
+static int exec_drive_command(struct mtip_port *port, u8 *command,
+                                void __user *user_buffer)
 {
         struct host_to_dev_fis  fis;
         struct host_to_dev_fis *reply = (port->rxfis + RX_FIS_D2H_REG);
@@ -2020,15 +2086,9 @@ static int mtip_hw_ioctl(struct driver_data *dd, unsigned int cmd,
  * return value
  *      None
  */
-void mtip_hw_submit_io(struct driver_data *dd,
-                        sector_t start,
-                        int nsect,
-                        int nents,
-                        int tag,
-                        void *callback,
-                        void *data,
-                        int barrier,
-                        int dir)
+static void mtip_hw_submit_io(struct driver_data *dd, sector_t start,
+                              int nsect, int nents, int tag, void *callback,
+                              void *data, int barrier, int dir)
 {
         struct host_to_dev_fis  *fis;
         struct mtip_port *port = dd->port;
@@ -2115,7 +2175,7 @@ void mtip_hw_submit_io(struct driver_data *dd,
  * return value
  *      None
  */
-void mtip_hw_release_scatterlist(struct driver_data *dd, int tag)
+static void mtip_hw_release_scatterlist(struct driver_data *dd, int tag)
 {
         release_slot(dd->port, tag);
 }
@@ -2131,8 +2191,8 @@ void mtip_hw_release_scatterlist(struct driver_data *dd, int tag)
  *      Pointer to the scatter list for the allocated command slot
  *      or NULL if no command slots are available.
  */
-struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
-                                                int *tag)
+static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd,
+                                                   int *tag)
 {
         /*
          * It is possible that, even with this semaphore, a thread
@@ -2216,7 +2276,7 @@ static DEVICE_ATTR(registers, S_IRUGO, hw_show_registers, NULL);
  *      0       Operation completed successfully.
  *      -EINVAL Invalid parameter.
  */
-int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
+static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
 {
         if (!kobj || !dd)
                 return -EINVAL;
@@ -2237,7 +2297,7 @@ int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj)
  *      0       Operation completed successfully.
  *      -EINVAL Invalid parameter.
  */
-int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
+static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj)
 {
         if (!kobj || !dd)
                 return -EINVAL;
@@ -2385,7 +2445,7 @@ static int mtip_ftl_rebuild_poll(struct driver_data *dd)
  * return value
  *      0 on success, else an error code.
  */
-int mtip_hw_init(struct driver_data *dd)
+static int mtip_hw_init(struct driver_data *dd)
 {
         int i;
         int rv;
@@ -2586,7 +2646,7 @@ out1:
  * return value
  *      0
  */
-int mtip_hw_exit(struct driver_data *dd)
+static int mtip_hw_exit(struct driver_data *dd)
 {
         /*
          * Send standby immediate (E0h) to the drive so that it
@@ -2634,7 +2694,7 @@ int mtip_hw_exit(struct driver_data *dd)
  * return value
  *      0
  */
-int mtip_hw_shutdown(struct driver_data *dd)
+static int mtip_hw_shutdown(struct driver_data *dd)
 {
         /*
          * Send standby immediate (E0h) to the drive so that it
@@ -2657,7 +2717,7 @@ int mtip_hw_shutdown(struct driver_data *dd)
  *      0       Suspend was successful
  *      -EFAULT Suspend was not successful
  */
-int mtip_hw_suspend(struct driver_data *dd)
+static int mtip_hw_suspend(struct driver_data *dd)
 {
         /*
          * Send standby immediate (E0h) to the drive
@@ -2689,7 +2749,7 @@ int mtip_hw_suspend(struct driver_data *dd)
  *      0       Resume was successful
  *      -EFAULT Resume was not successful
  */
-int mtip_hw_resume(struct driver_data *dd)
+static int mtip_hw_resume(struct driver_data *dd)
 {
         /* Perform any needed hardware setup steps */
         hba_setup(dd);
@@ -2716,50 +2776,6 @@ int mtip_hw_resume(struct driver_data *dd)
 }
 
 /*
- * This function is called for clean the pending command in the
- * command slot during the surprise removal of device and return
- * error to the upper layer.
- *
- * @dd Pointer to the DRIVER_DATA structure.
- *
- * return value
- *      None
- */
-void mtip_command_cleanup(struct driver_data *dd)
-{
-        int group = 0, commandslot = 0, commandindex = 0;
-        struct mtip_cmd *command;
-        struct mtip_port *port = dd->port;
-
-        for (group = 0; group < 4; group++) {
-                for (commandslot = 0; commandslot < 32; commandslot++) {
-                        if (!(port->allocated[group] & (1 << commandslot)))
-                                continue;
-
-                        commandindex = group << 5 | commandslot;
-                        command = &port->commands[commandindex];
-
-                        if (atomic_read(&command->active)
-                            && (command->async_callback)) {
-                                command->async_callback(command->async_data,
-                                        -ENODEV);
-                                command->async_callback = NULL;
-                                command->async_data = NULL;
-                        }
-
-                        dma_unmap_sg(&port->dd->pdev->dev,
-                                command->sg,
-                                command->scatter_ents,
-                                command->direction);
-                }
-        }
-
-        up(&port->cmd_slot);
-
-        atomic_set(&dd->drv_cleanup_done, true);
-}
-
-/*
  * Helper function for reusing disk name
  * upon hot insertion.
  */
@@ -3037,7 +3053,7 @@ static int mtip_make_request(struct request_queue *queue, struct bio *bio)
  * return value
  *      0 on success else an error code.
  */
-int mtip_block_initialize(struct driver_data *dd)
+static int mtip_block_initialize(struct driver_data *dd)
 {
         int rv = 0;
         sector_t capacity;
@@ -3168,7 +3184,7 @@ protocol_init_error:
  * return value
  *      0
  */
-int mtip_block_remove(struct driver_data *dd)
+static int mtip_block_remove(struct driver_data *dd)
 {
         struct kobject *kobj;
         /* Clean up the sysfs attributes managed by the protocol layer. */
@@ -3205,7 +3221,7 @@ int mtip_block_remove(struct driver_data *dd)
  * return value
  *      0
  */
-int mtip_block_shutdown(struct driver_data *dd)
+static int mtip_block_shutdown(struct driver_data *dd)
 {
         dev_info(&dd->pdev->dev,
                 "Shutting down %s ...\n", dd->disk->disk_name);
@@ -3220,7 +3236,7 @@ int mtip_block_shutdown(struct driver_data *dd)
         return 0;
 }
 
-int mtip_block_suspend(struct driver_data *dd)
+static int mtip_block_suspend(struct driver_data *dd)
 {
         dev_info(&dd->pdev->dev,
                 "Suspending %s ...\n", dd->disk->disk_name);
@@ -3228,7 +3244,7 @@ int mtip_block_suspend(struct driver_data *dd)
         return 0;
 }
 
-int mtip_block_resume(struct driver_data *dd)
+static int mtip_block_resume(struct driver_data *dd)
 {
         dev_info(&dd->pdev->dev, "Resuming %s ...\n",
                 dd->disk->disk_name);
@@ -3479,28 +3495,6 @@ static void mtip_pci_shutdown(struct pci_dev *pdev)
                 mtip_block_shutdown(dd);
 }
 
-/*
- * This function check_for_surprise_removal is called
- * while card is removed from the system and it will
- * read the vendor id from the configration space
- *
- * @pdev Pointer to the pci_dev structure.
- *
- * return value
- *       true if device removed, else false
- */
-bool mtip_check_surprise_removal(struct pci_dev *pdev)
-{
-        u16 vendor_id = 0;
-
-       /* Read the vendorID from the configuration space */
-        pci_read_config_word(pdev, 0x00, &vendor_id);
-        if (vendor_id == 0xFFFF)
-                return true; /* device removed */
-
-        return false; /* device present */
-}
-
 /* Table of device ids supported by this driver. */
 static DEFINE_PCI_DEVICE_TABLE(mtip_pci_tbl) = {
         {  PCI_DEVICE(PCI_VENDOR_ID_MICRON, P320_DEVICE_ID) },
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index d6355c6f218f..17be4f444e7d 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -405,37 +405,4 @@ struct driver_data {
         atomic_t eh_active; /* Flag for error handling tracking */
 };
 
-/* Function declarations */
-extern int mtip_block_initialize(struct driver_data *dd);
-extern int mtip_block_remove(struct driver_data *dd);
-extern int mtip_block_shutdown(struct driver_data *dd);
-extern int mtip_block_suspend(struct driver_data *dd);
-extern int mtip_block_resume(struct driver_data *dd);
-extern int mtip_hw_init(struct driver_data *dd);
-extern int mtip_hw_exit(struct driver_data *dd);
-extern int mtip_hw_shutdown(struct driver_data *dd);
-extern bool mtip_hw_get_capacity(struct driver_data *dd, sector_t *sectors);
-extern void mtip_hw_release_scatterlist(
-                        struct driver_data *dd,
-                        int tag);
-extern struct scatterlist *mtip_hw_get_scatterlist(
-                        struct driver_data *dd,
-                        int *tag);
-extern void mtip_hw_submit_io(struct driver_data *dd,
-                        sector_t start,
-                        int nsect,
-                        int nents,
-                        int tag,
-                        void *callback,
-                        void *data,
-                        int barrier,
-                        int dir);
-extern int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj);
-extern int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj);
-extern int mtip_hw_resume(struct driver_data *dd);
-extern int mtip_hw_suspend(struct driver_data *dd);
-void mtip_command_cleanup(struct driver_data *dd);
-bool mtip_check_surprise_removal(struct pci_dev *pdev);
-void mtip_restart_port(struct mtip_port *port);
-
 #endif