vxge: remove set but not used variable 'req_out', 'status' and 'ret'

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

drivers/net/ethernet/neterion/vxge/vxge-config.c:1097:6: warning:
 variable 'ret' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/neterion/vxge/vxge-config.c:2263:6: warning:
 variable 'req_out' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/neterion/vxge/vxge-config.c:2262:22: warning:
 variable 'status' set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/neterion/vxge/vxge-config.c:2360:22: warning:
 variable 'status' set but not used [-Wunused-but-set-variable]
  enum vxge_hw_status status = VXGE_HW_OK;

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index ae81498..398011c 100644 (file)
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -1094,12 +1094,9 @@ static void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
 {
        struct __vxge_hw_device *hldev;
        struct list_head *p, *n;
-       u16 ret;
 
-       if (blockpool == NULL) {
-               ret = 1;
-               goto exit;
-       }
+       if (!blockpool)
+               return;
 
        hldev = blockpool->hldev;
 
@@ -1122,8 +1119,7 @@ static void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
                list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
                kfree((void *)p);
        }
-       ret = 0;
-exit:
+
        return;
 }
 
@@ -2259,14 +2255,11 @@ static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
        struct __vxge_hw_blockpool *blockpool;
        struct __vxge_hw_blockpool_entry *entry = NULL;
        dma_addr_t dma_addr;
-       enum vxge_hw_status status = VXGE_HW_OK;
-       u32 req_out;
 
        blockpool = &devh->block_pool;
 
        if (block_addr == NULL) {
                blockpool->req_out--;
-               status = VXGE_HW_FAIL;
                goto exit;
        }
 
@@ -2276,7 +2269,6 @@ static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
        if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) {
                vxge_os_dma_free(devh->pdev, block_addr, &acc_handle);
                blockpool->req_out--;
-               status = VXGE_HW_FAIL;
                goto exit;
        }
 
@@ -2291,7 +2283,7 @@ static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
        else
                list_del(&entry->item);
 
-       if (entry != NULL) {
+       if (entry) {
                entry->length = length;
                entry->memblock = block_addr;
                entry->dma_addr = dma_addr;
@@ -2299,13 +2291,10 @@ static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
                entry->dma_handle = dma_h;
                list_add(&entry->item, &blockpool->free_block_list);
                blockpool->pool_size++;
-               status = VXGE_HW_OK;
-       } else
-               status = VXGE_HW_ERR_OUT_OF_MEMORY;
+       }
 
        blockpool->req_out--;
 
-       req_out = blockpool->req_out;
 exit:
        return;
 }
@@ -2357,7 +2346,6 @@ static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
        struct __vxge_hw_blockpool_entry *entry = NULL;
        struct __vxge_hw_blockpool  *blockpool;
        void *memblock = NULL;
-       enum vxge_hw_status status = VXGE_HW_OK;
 
        blockpool = &devh->block_pool;
 
@@ -2367,10 +2355,8 @@ static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
                                                &dma_object->handle,
                                                &dma_object->acc_handle);
 
-               if (memblock == NULL) {
-                       status = VXGE_HW_ERR_OUT_OF_MEMORY;
+               if (!memblock)
                        goto exit;
-               }
 
                dma_object->addr = pci_map_single(devh->pdev, memblock, size,
                                        PCI_DMA_BIDIRECTIONAL);
@@ -2379,7 +2365,6 @@ static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
                                dma_object->addr))) {
                        vxge_os_dma_free(devh->pdev, memblock,
                                &dma_object->acc_handle);
-                       status = VXGE_HW_ERR_OUT_OF_MEMORY;
                        goto exit;
                }