3w-xxxx: Pass through compat mode ioctls

This allows 32-bit userspace tools (tw_cli, smartctl) to work on a
64-bit system.  The command buffer is opaque to us, so, no word size
problems.

Signed-off-by: Ryan C. Underwood <nemesis@icequake.net>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 2940bd769936cd7f75d2d20adc324914b0df4b84..25aba1613e2157f7a2e468007c202a16015b3f40 100644 (file)
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1045,6 +1045,9 @@ static int tw_chrdev_open(struct inode *inode, struct file *file)
 static const struct file_operations tw_fops = {
        .owner          = THIS_MODULE,
        .unlocked_ioctl = tw_chrdev_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl   = tw_chrdev_ioctl,
+#endif
        .open           = tw_chrdev_open,
        .release        = NULL,
        .llseek         = noop_llseek,