This patch does away with the cast on void * as it is unnecessary. Semantic patch used is as follows: @r@ expression x; void* e; type T; identifier f; @@ ( *((T *)e) | ((T *)x)[...] | ((T *)x)->f | - (T *) e ) Signed-off-by: Shraddha Barke <shraddha.6596(a)gmail.com&gt; --- drivers/staging/lustre/lustre/libcfs/linux/linux-module.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c index e962f89..78acff0 100644 --- a/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-module.c @@ -49,7 +49,7 @@ int libcfs_ioctl_getdata(char *buf, char *end, void *arg) hdr = (struct libcfs_ioctl_hdr *)buf; data = (struct libcfs_ioctl_data *)buf; - if (copy_from_user(buf, (void *)arg, sizeof(*hdr))) + if (copy_from_user(buf, arg, sizeof(*hdr))) return -EFAULT; if (hdr->ioc_version != LIBCFS_IOCTL_VERSION) { @@ -69,7 +69,7 @@ int libcfs_ioctl_getdata(char *buf, char *end, void *arg) } orig_len = hdr->ioc_len; - if (copy_from_user(buf, (void *)arg, hdr->ioc_len)) + if (copy_from_user(buf, arg, hdr->ioc_len)) return -EFAULT; if (orig_len != data->ioc_len) return -EINVAL; -- 2.1.0