Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/megaraid/megaraid_mbox.c: In function 'megaraid_mbox_sync_scb':
drivers/scsi/megaraid/megaraid_mbox.c:2193:14: warning:
 variable 'ccb' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 'megaraid_reset_handler':
drivers/scsi/megaraid/megaraid_mbox.c:2580:7: warning:
 variable 'recovering' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 'mbox_post_sync_cmd':
drivers/scsi/megaraid/megaraid_mbox.c:2728:12: warning:
 variable 'mbox64' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 
'megaraid_mbox_support_random_del':
drivers/scsi/megaraid/megaraid_mbox.c:3138:11: warning:
 variable 'mbox' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 'megaraid_mbox_flush_cache':
drivers/scsi/megaraid/megaraid_mbox.c:3266:10: warning:
 variable 'mbox' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 
'megaraid_mbox_fire_sync_cmd':
drivers/scsi/megaraid/megaraid_mbox.c:3302:12: warning:
 variable 'mbox64' set but not used [-Wunused-but-set-variable]

drivers/scsi/megaraid/megaraid_mbox.c: In function 'gather_hbainfo':
drivers/scsi/megaraid/megaraid_mbox.c:3797:10: warning:
 variable 'dmajor' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/scsi/megaraid/megaraid_mbox.c | 31 -------------------------------
 1 file changed, 31 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c 
b/drivers/scsi/megaraid/megaraid_mbox.c
index 530358c..e9030c9 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -202,13 +202,6 @@ static void megaraid_mbox_prepare_epthru(adapter_t *, 
scb_t *,
 MODULE_PARM_DESC(debug_level, "Debug level for driver (default=0)");
 
 /*
- * ### global data ###
- */
-static uint8_t megaraid_mbox_version[8] =
-       { 0x02, 0x20, 0x04, 0x06, 3, 7, 20, 5 };
-
-
-/*
  * PCI table for all supported controllers.
  */
 static struct pci_device_id pci_id_table_g[] =  {
@@ -2190,10 +2183,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 static void
 megaraid_mbox_sync_scb(adapter_t *adapter, scb_t *scb)
 {
-       mbox_ccb_t      *ccb;
-
-       ccb     = (mbox_ccb_t *)scb->ccb;
-
        if (scb->dma_direction == PCI_DMA_FROMDEVICE)
                pci_dma_sync_sg_for_cpu(adapter->pdev,
                                        scsi_sglist(scb->scp),
@@ -2577,7 +2566,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
        uint8_t         raw_mbox[sizeof(mbox_t)];
        int             rval;
        int             recovery_window;
-       int             recovering;
        int             i;
        uioc_t          *kioc;
 
@@ -2591,7 +2579,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
                return FAILED;
        }
 
-
        // Under exceptional conditions, FW can take up to 3 minutes to
        // complete command processing. Wait for additional 2 minutes for the
        // pending commands counter to go down to 0. If it doesn't, let the
@@ -2640,8 +2627,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 
        recovery_window = MBOX_RESET_WAIT + MBOX_RESET_EXT_WAIT;
 
-       recovering = adapter->outstanding_cmds;
-
        for (i = 0; i < recovery_window; i++) {
 
                megaraid_ack_sequence(adapter);
@@ -2725,13 +2710,10 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 mbox_post_sync_cmd(adapter_t *adapter, uint8_t raw_mbox[])
 {
        mraid_device_t  *raid_dev = ADAP2RAIDDEV(adapter);
-       mbox64_t        *mbox64;
        mbox_t          *mbox;
        uint8_t         status;
        int             i;
 
-
-       mbox64  = raid_dev->mbox64;
        mbox    = raid_dev->mbox;
 
        /*
@@ -3135,7 +3117,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 static int
 megaraid_mbox_support_random_del(adapter_t *adapter)
 {
-       mbox_t          *mbox;
        uint8_t         raw_mbox[sizeof(mbox_t)];
        int             rval;
 
@@ -3157,8 +3138,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
                return 0;
        }
 
-       mbox = (mbox_t *)raw_mbox;
-
        memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
 
        raw_mbox[0] = FC_DEL_LOGDRV;
@@ -3263,12 +3242,8 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 static void
 megaraid_mbox_flush_cache(adapter_t *adapter)
 {
-       mbox_t  *mbox;
        uint8_t raw_mbox[sizeof(mbox_t)];
 
-
-       mbox = (mbox_t *)raw_mbox;
-
        memset((caddr_t)raw_mbox, 0, sizeof(mbox_t));
 
        raw_mbox[0] = FLUSH_ADAPTER;
@@ -3299,7 +3274,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
        mbox_t  *mbox;
        uint8_t raw_mbox[sizeof(mbox_t)];
        mraid_device_t  *raid_dev = ADAP2RAIDDEV(adapter);
-       mbox64_t *mbox64;
        int     status = 0;
        int i;
        uint32_t dword;
@@ -3310,7 +3284,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 
        raw_mbox[0] = 0xFF;
 
-       mbox64  = raid_dev->mbox64;
        mbox    = raid_dev->mbox;
 
        /* Wait until mailbox is free */
@@ -3794,10 +3767,6 @@ static DEF_SCSI_QCMD(megaraid_queue_command)
 static int
 gather_hbainfo(adapter_t *adapter, mraid_hba_info_t *hinfo)
 {
-       uint8_t dmajor;
-
-       dmajor                  = megaraid_mbox_version[0];
-
        hinfo->pci_vendor_id    = adapter->pdev->vendor;
        hinfo->pci_device_id    = adapter->pdev->device;
        hinfo->subsys_vendor_id = adapter->pdev->subsystem_vendor;
-- 
1.8.3.1


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