mtip32xx: fix warnings/errors on 32-bit compiles

We need to clean up the compat ioctl handling, but this makes it
work for now at least.

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

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 847b8ff..1cf2b04 100644 (file)
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -85,6 +85,7 @@ int mtip_major;
 static DEFINE_SPINLOCK(rssd_index_lock);
 static DEFINE_IDA(rssd_index_ida);
 
+#ifdef CONFIG_COMPAT
 struct mtip_compat_ide_task_request_s {
        __u8            io_ports[8];
        __u8            hob_ports[8];
@@ -95,6 +96,7 @@ struct mtip_compat_ide_task_request_s {
        compat_ulong_t  out_size;
        compat_ulong_t  in_size;
 };
+#endif
 
 static int mtip_exec_internal_command(struct mtip_port *port,
                                void *fis,
@@ -1628,9 +1630,9 @@ static int exec_drive_taskfile(struct driver_data *dd,
        ide_task_request_t *req_task;
        u8 *outbuf = NULL;
        u8 *inbuf = NULL;
-       dma_addr_t outbuf_dma = (dma_addr_t)NULL;
-       dma_addr_t inbuf_dma = (dma_addr_t)NULL;
-       dma_addr_t dma_buffer = (dma_addr_t)NULL;
+       dma_addr_t outbuf_dma = 0;
+       dma_addr_t inbuf_dma = 0;
+       dma_addr_t dma_buffer = 0;
        int err = 0;
        int tasksize = sizeof(struct ide_task_request_s);
        unsigned int taskin = 0;
@@ -1642,14 +1644,18 @@ static int exec_drive_taskfile(struct driver_data *dd,
        unsigned int transfer_size;
        unsigned long task_file_data;
        int intotal, outtotal;
+#ifdef CONFIG_COMPAT
        struct mtip_compat_ide_task_request_s *compat_req_task = NULL;
        int compat_tasksize = sizeof(struct mtip_compat_ide_task_request_s);
+#endif
+
 
        req_task = kzalloc(tasksize, GFP_KERNEL);
        if (req_task == NULL)
                return -ENOMEM;
 
        if (compat == 1) {
+#ifdef CONFIG_COMPAT
                compat_req_task =
                        (struct mtip_compat_ide_task_request_s __user *) arg;
 
@@ -1672,6 +1678,10 @@ static int exec_drive_taskfile(struct driver_data *dd,
 
                outtotal = compat_tasksize;
                intotal = compat_tasksize + req_task->out_size;
+#else
+               outtotal = 0;
+               intotal = 0;
+#endif
        } else {
                if (copy_from_user(req_task, buf, tasksize)) {
                        kfree(req_task);
@@ -1705,7 +1715,7 @@ static int exec_drive_taskfile(struct driver_data *dd,
                                         outbuf,
                                         taskout,
                                         DMA_TO_DEVICE);
-               if (outbuf_dma == (dma_addr_t)NULL) {
+               if (outbuf_dma == 0) {
                        err = -ENOMEM;
                        goto abort;
                }
@@ -1726,7 +1736,7 @@ static int exec_drive_taskfile(struct driver_data *dd,
                inbuf_dma = pci_map_single(dd->pdev,
                                         inbuf,
                                         taskin, DMA_FROM_DEVICE);
-               if (inbuf_dma == (dma_addr_t)NULL) {
+               if (inbuf_dma == 0) {
                        err = -ENOMEM;
                        goto abort;
                }
@@ -1868,8 +1878,8 @@ static int exec_drive_taskfile(struct driver_data *dd,
        if (outbuf_dma)
                pci_unmap_single(dd->pdev, outbuf_dma,
                        taskout, DMA_TO_DEVICE);
-       inbuf_dma  = (dma_addr_t) NULL;
-       outbuf_dma = (dma_addr_t) NULL;
+       inbuf_dma  = 0;
+       outbuf_dma = 0;
 
        /* return the ATA registers to the caller.*/
        req_task->io_ports[1] = reply->features;
@@ -1913,6 +1923,7 @@ static int exec_drive_taskfile(struct driver_data *dd,
        up_write(&dd->internal_sem);
 
        if (compat == 1) {
+#ifdef CONFIG_COMPAT
                if (copy_to_user(buf, req_task,
                                compat_tasksize -
                                (2 * sizeof(compat_long_t)))) {
@@ -1928,6 +1939,7 @@ static int exec_drive_taskfile(struct driver_data *dd,
                        err = -EFAULT;
                        goto abort;
                }
+#endif
        } else {
                if (copy_to_user(buf, req_task, tasksize)) {
                        err = -EFAULT;
@@ -2873,6 +2885,7 @@ static int mtip_block_ioctl(struct block_device *dev,
        }
 }
 
+#ifdef CONFIG_COMPAT
 /*
  * Block layer compat IOCTL handler.
  *
@@ -2906,6 +2919,7 @@ static int mtip_block_compat_ioctl(struct block_device *dev,
                return mtip_hw_ioctl(dd, cmd, arg, 1);
        }
 }
+#endif
 
 /*
  * Obtain the geometry of the device.
@@ -2959,7 +2973,9 @@ static int mtip_block_getgeo(struct block_device *dev,
  */
 static const struct block_device_operations mtip_block_ops = {
        .ioctl          = mtip_block_ioctl,
+#ifdef CONFIG_COMPAT
        .compat_ioctl   = mtip_block_compat_ioctl,
+#endif
        .getgeo         = mtip_block_getgeo,
        .owner          = THIS_MODULE
 };