netxen: fix sparse warnings

Fix following sparse warnings (multiple instances)

warning: restricted degrades to integer
warning: cast to restricted type
warning: incorrect type in argument 3 (different signedness)
warning: context imbalance in 'netxen_nic_hw_write_wx_2M' - different
lock contexts for basic block

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 47 insertions, 132 deletions

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 821cff68b3f..81f55e1a34d 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -936,13 +936,12 @@ netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong *off)
         u32 win_read;
 
         adapter->crb_win = CRB_HI(*off);
-        writel(adapter->crb_win, (void *)(CRB_WINDOW_2M +
-                adapter->ahw.pci_base0));
+        writel(adapter->crb_win, (adapter->ahw.pci_base0 + CRB_WINDOW_2M));
         /*
          * Read back value to make sure write has gone through before trying
          * to use it.
          */
-        win_read = readl((void *)(CRB_WINDOW_2M + adapter->ahw.pci_base0));
+        win_read = readl(adapter->ahw.pci_base0 + CRB_WINDOW_2M);
         if (win_read != adapter->crb_win) {
                 printk(KERN_ERR "%s: Written crbwin (0x%x) != "
                                 "Read crbwin (0x%x), off=0x%lx\n",
@@ -992,6 +991,8 @@ netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter,
 {
         void __iomem *addr;
 
+        BUG_ON(len != 4);
+
         if (ADDR_IN_WINDOW1(off)) {
                 addr = NETXEN_CRB_NORMALIZE(adapter, off);
         } else {                /* Window 0 */
@@ -999,37 +1000,13 @@ netxen_nic_hw_write_wx_128M(struct netxen_adapter *adapter,
                 netxen_nic_pci_change_crbwindow_128M(adapter, 0);
         }
 
-        DPRINTK(INFO, "writing to base %lx offset %llx addr %p"
-                " data %llx len %d\n",
-                pci_base(adapter, off), off, addr,
-                *(unsigned long long *)data, len);
         if (!addr) {
                 netxen_nic_pci_change_crbwindow_128M(adapter, 1);
                 return 1;
         }
 
-        switch (len) {
-        case 1:
-                writeb(*(u8 *) data, addr);
-                break;
-        case 2:
-                writew(*(u16 *) data, addr);
-                break;
-        case 4:
-                writel(*(u32 *) data, addr);
-                break;
-        case 8:
-                writeq(*(u64 *) data, addr);
-                break;
-        default:
-                DPRINTK(INFO,
-                        "writing data %lx to offset %llx, num words=%d\n",
-                        *(unsigned long *)data, off, (len >> 3));
+        writel(*(u32 *) data, addr);
 
-                netxen_nic_hw_block_write64((u64 __iomem *) data, addr,
-                                            (len >> 3));
-                break;
-        }
         if (!ADDR_IN_WINDOW1(off))
                 netxen_nic_pci_change_crbwindow_128M(adapter, 1);
 
@@ -1042,6 +1019,8 @@ netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter,
 {
         void __iomem *addr;
 
+        BUG_ON(len != 4);
+
         if (ADDR_IN_WINDOW1(off)) {     /* Window 1 */
                 addr = NETXEN_CRB_NORMALIZE(adapter, off);
         } else {                /* Window 0 */
@@ -1049,31 +1028,12 @@ netxen_nic_hw_read_wx_128M(struct netxen_adapter *adapter,
                 netxen_nic_pci_change_crbwindow_128M(adapter, 0);
         }
 
-        DPRINTK(INFO, "reading from base %lx offset %llx addr %p\n",
-                pci_base(adapter, off), off, addr);
         if (!addr) {
                 netxen_nic_pci_change_crbwindow_128M(adapter, 1);
                 return 1;
         }
-        switch (len) {
-        case 1:
-                *(u8 *) data = readb(addr);
-                break;
-        case 2:
-                *(u16 *) data = readw(addr);
-                break;
-        case 4:
-                *(u32 *) data = readl(addr);
-                break;
-        case 8:
-                *(u64 *) data = readq(addr);
-                break;
-        default:
-                netxen_nic_hw_block_read64((u64 __iomem *) data, addr,
-                                           (len >> 3));
-                break;
-        }
-        DPRINTK(INFO, "read %lx\n", *(unsigned long *)data);
+
+        *(u32 *)data = readl(addr);
 
         if (!ADDR_IN_WINDOW1(off))
                 netxen_nic_pci_change_crbwindow_128M(adapter, 1);
@@ -1088,6 +1048,8 @@ netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter,
         unsigned long flags = 0;
         int rv;
 
+        BUG_ON(len != 4);
+
         rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
 
         if (rv == -1) {
@@ -1101,34 +1063,12 @@ netxen_nic_hw_write_wx_2M(struct netxen_adapter *adapter,
                 write_lock_irqsave(&adapter->adapter_lock, flags);
                 crb_win_lock(adapter);
                 netxen_nic_pci_set_crbwindow_2M(adapter, &off);
-        }
-
-        DPRINTK(1, INFO, "write data %lx to offset %llx, len=%d\n",
-                        *(unsigned long *)data, off, len);
-
-        switch (len) {
-        case 1:
-                writeb(*(uint8_t *)data, (void *)off);
-                break;
-        case 2:
-                writew(*(uint16_t *)data, (void *)off);
-                break;
-        case 4:
-                writel(*(uint32_t *)data, (void *)off);
-                break;
-        case 8:
-                writeq(*(uint64_t *)data, (void *)off);
-                break;
-        default:
-                DPRINTK(1, INFO,
-                        "writing data %lx to offset %llx, num words=%d\n",
-                        *(unsigned long *)data, off, (len>>3));
-                break;
-        }
-        if (rv == 1) {
+                writel(*(uint32_t *)data, (void __iomem *)off);
                 crb_win_unlock(adapter);
                 write_unlock_irqrestore(&adapter->adapter_lock, flags);
-        }
+        } else
+                writel(*(uint32_t *)data, (void __iomem *)off);
+
 
         return 0;
 }
@@ -1140,6 +1080,8 @@ netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter,
         unsigned long flags = 0;
         int rv;
 
+        BUG_ON(len != 4);
+
         rv = netxen_nic_pci_get_crb_addr_2M(adapter, &off, len);
 
         if (rv == -1) {
@@ -1153,33 +1095,11 @@ netxen_nic_hw_read_wx_2M(struct netxen_adapter *adapter,
                 write_lock_irqsave(&adapter->adapter_lock, flags);
                 crb_win_lock(adapter);
                 netxen_nic_pci_set_crbwindow_2M(adapter, &off);
-        }
-
-        DPRINTK(1, INFO, "read from offset %lx, len=%d\n", off, len);
-
-        switch (len) {
-        case 1:
-                *(uint8_t *)data = readb((void *)off);
-                break;
-        case 2:
-                *(uint16_t *)data = readw((void *)off);
-                break;
-        case 4:
-                *(uint32_t *)data = readl((void *)off);
-                break;
-        case 8:
-                *(uint64_t *)data = readq((void *)off);
-                break;
-        default:
-                break;
-        }
-
-        DPRINTK(1, INFO, "read %lx\n", *(unsigned long *)data);
-
-        if (rv == 1) {
+                *(uint32_t *)data = readl((void __iomem *)off);
                 crb_win_unlock(adapter);
                 write_unlock_irqrestore(&adapter->adapter_lock, flags);
-        }
+        } else
+                *(uint32_t *)data = readl((void __iomem *)off);
 
         return 0;
 }
@@ -1441,10 +1361,9 @@ static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
                         u64 off, void *data, int size)
 {
         unsigned long flags;
-        void *addr;
+        void __iomem *addr, *mem_ptr = NULL;
         int ret = 0;
         u64 start;
-        uint8_t *mem_ptr = NULL;
         unsigned long mem_base;
         unsigned long mem_page;
 
@@ -1464,7 +1383,7 @@ static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
                 return -1;
         }
 
-        addr = (void *)(pci_base_offset(adapter, start));
+        addr = pci_base_offset(adapter, start);
         if (!addr) {
                 write_unlock_irqrestore(&adapter->adapter_lock, flags);
                 mem_base = pci_resource_start(adapter->pdev, 0);
@@ -1503,7 +1422,6 @@ static int netxen_nic_pci_mem_read_direct(struct netxen_adapter *adapter,
                 break;
         }
         write_unlock_irqrestore(&adapter->adapter_lock, flags);
-        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
 
         if (mem_ptr)
                 iounmap(mem_ptr);
@@ -1515,10 +1433,9 @@ netxen_nic_pci_mem_write_direct(struct netxen_adapter *adapter, u64 off,
                 void *data, int size)
 {
         unsigned long flags;
-        void *addr;
+        void __iomem *addr, *mem_ptr = NULL;
         int ret = 0;
         u64 start;
-        uint8_t *mem_ptr = NULL;
         unsigned long mem_base;
         unsigned long mem_page;
 
@@ -1538,7 +1455,7 @@ netxen_nic_pci_mem_write_direct(struct netxen_adapter *adapter, u64 off,
                 return -1;
         }
 
-        addr = (void *)(pci_base_offset(adapter, start));
+        addr = pci_base_offset(adapter, start);
         if (!addr) {
                 write_unlock_irqrestore(&adapter->adapter_lock, flags);
                 mem_base = pci_resource_start(adapter->pdev, 0);
@@ -1575,8 +1492,6 @@ netxen_nic_pci_mem_write_direct(struct netxen_adapter *adapter, u64 off,
                 break;
         }
         write_unlock_irqrestore(&adapter->adapter_lock, flags);
-        DPRINTK(1, INFO, "writing data %llx to offset %llx\n",
-                        *(unsigned long long *)data, start);
         if (mem_ptr)
                 iounmap(mem_ptr);
         return ret;
@@ -1588,10 +1503,11 @@ int
 netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
                 u64 off, void *data, int size)
 {
-        unsigned long   flags, mem_crb;
+        unsigned long   flags;
         int          i, j, ret = 0, loop, sz[2], off0;
         uint32_t      temp;
         uint64_t      off8, tmpw, word[2] = {0, 0};
+        void __iomem *mem_crb;
 
         /*
          * If not MN, go check for MS or invalid.
@@ -1605,7 +1521,7 @@ netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
         sz[0] = (size < (8 - off0)) ? size : (8 - off0);
         sz[1] = size - sz[0];
         loop = ((off0 + size - 1) >> 3) + 1;
-        mem_crb = (unsigned long)pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
+        mem_crb = pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
 
         if ((size != 8) || (off0 != 0))  {
                 for (i = 0; i < loop; i++) {
@@ -1643,21 +1559,21 @@ netxen_nic_pci_mem_write_128M(struct netxen_adapter *adapter,
 
         for (i = 0; i < loop; i++) {
                 writel((uint32_t)(off8 + (i << 3)),
-                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_LO));
+                        (mem_crb+MIU_TEST_AGT_ADDR_LO));
                 writel(0,
-                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_HI));
+                        (mem_crb+MIU_TEST_AGT_ADDR_HI));
                 writel(word[i] & 0xffffffff,
-                        (void *)(mem_crb+MIU_TEST_AGT_WRDATA_LO));
+                        (mem_crb+MIU_TEST_AGT_WRDATA_LO));
                 writel((word[i] >> 32) & 0xffffffff,
-                        (void *)(mem_crb+MIU_TEST_AGT_WRDATA_HI));
+                        (mem_crb+MIU_TEST_AGT_WRDATA_HI));
                 writel(MIU_TA_CTL_ENABLE|MIU_TA_CTL_WRITE,
-                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                        (mem_crb+MIU_TEST_AGT_CTRL));
                 writel(MIU_TA_CTL_START|MIU_TA_CTL_ENABLE|MIU_TA_CTL_WRITE,
-                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                        (mem_crb+MIU_TEST_AGT_CTRL));
 
                 for (j = 0; j < MAX_CTL_CHECK; j++) {
                         temp = readl(
-                             (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                             (mem_crb+MIU_TEST_AGT_CTRL));
                         if ((temp & MIU_TA_CTL_BUSY) == 0)
                                 break;
                 }
@@ -1679,10 +1595,11 @@ int
 netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
                 u64 off, void *data, int size)
 {
-        unsigned long   flags, mem_crb;
+        unsigned long   flags;
         int          i, j = 0, k, start, end, loop, sz[2], off0[2];
         uint32_t      temp;
         uint64_t      off8, val, word[2] = {0, 0};
+        void __iomem *mem_crb;
 
 
         /*
@@ -1697,24 +1614,24 @@ netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
         sz[0] = (size < (8 - off0[0])) ? size : (8 - off0[0]);
         sz[1] = size - sz[0];
         loop = ((off0[0] + size - 1) >> 3) + 1;
-        mem_crb = (unsigned long)pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
+        mem_crb = pci_base_offset(adapter, NETXEN_CRB_DDR_NET);
 
         write_lock_irqsave(&adapter->adapter_lock, flags);
         netxen_nic_pci_change_crbwindow_128M(adapter, 0);
 
         for (i = 0; i < loop; i++) {
                 writel((uint32_t)(off8 + (i << 3)),
-                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_LO));
+                        (mem_crb+MIU_TEST_AGT_ADDR_LO));
                 writel(0,
-                        (void *)(mem_crb+MIU_TEST_AGT_ADDR_HI));
+                        (mem_crb+MIU_TEST_AGT_ADDR_HI));
                 writel(MIU_TA_CTL_ENABLE,
-                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                        (mem_crb+MIU_TEST_AGT_CTRL));
                 writel(MIU_TA_CTL_START|MIU_TA_CTL_ENABLE,
-                        (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                        (mem_crb+MIU_TEST_AGT_CTRL));
 
                 for (j = 0; j < MAX_CTL_CHECK; j++) {
                         temp = readl(
-                              (void *)(mem_crb+MIU_TEST_AGT_CTRL));
+                              (mem_crb+MIU_TEST_AGT_CTRL));
                         if ((temp & MIU_TA_CTL_BUSY) == 0)
                                 break;
                 }
@@ -1729,7 +1646,7 @@ netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
                 end   = (off0[i] + sz[i] - 1) >> 2;
                 for (k = start; k <= end; k++) {
                         word[i] |= ((uint64_t) readl(
-                                    (void *)(mem_crb +
+                                    (mem_crb +
                                     MIU_TEST_AGT_RDDATA(k))) << (32*k));
                 }
         }
@@ -1761,7 +1678,6 @@ netxen_nic_pci_mem_read_128M(struct netxen_adapter *adapter,
                 *(uint64_t *)data = val;
                 break;
         }
-        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
         return 0;
 }
 
@@ -1970,7 +1886,6 @@ netxen_nic_pci_mem_read_2M(struct netxen_adapter *adapter,
                 *(uint64_t *)data = val;
                 break;
         }
-        DPRINTK(1, INFO, "read %llx\n", *(unsigned long long *)data);
         return 0;
 }
 
@@ -2024,10 +1939,10 @@ int netxen_nic_get_board_info(struct netxen_adapter *adapter)
         int addr = NETXEN_BRDCFG_START;
         struct netxen_board_info *boardinfo;
         int index;
-        u32 *ptr32;
+        int *ptr32;
 
         boardinfo = &adapter->ahw.boardcfg;
-        ptr32 = (u32 *) boardinfo;
+        ptr32 = (int *) boardinfo;
 
         for (index = 0; index < sizeof(struct netxen_board_info) / sizeof(u32);
              index++) {
@@ -2207,13 +2122,13 @@ void netxen_nic_flash_print(struct netxen_adapter *adapter)
         char brd_name[NETXEN_MAX_SHORT_NAME];
         char serial_num[32];
         int i, addr;
-        __le32 *ptr32;
+        int *ptr32;
 
         struct netxen_board_info *board_info = &(adapter->ahw.boardcfg);
 
         adapter->driver_mismatch = 0;
 
-        ptr32 = (u32 *)&serial_num;
+        ptr32 = (int *)&serial_num;
         addr = NETXEN_USER_START +
                offsetof(struct netxen_new_user_info, serial_num);
         for (i = 0; i < 8; i++) {