[media] v4l2-core: don't break long lines

Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.

As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.

So, join those continuation lines.

The patch was generated via the script below, and manually
adjusted if needed.

</script>
use Text::Tabs;
while (<>) {
	if ($next ne "") {
		$c=$_;
		if ($c =~ /^\s+\"(.*)/) {
			$c2=$1;
			$next =~ s/\"\n$//;
			$n = expand($next);
			$funpos = index($n, '(');
			$pos = index($c2, '",');
			if ($funpos && $pos > 0) {
				$s1 = substr $c2, 0, $pos + 2;
				$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
				$s2 =~ s/^\s+//;

				$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");

				print unexpand("$next$s1\n");
				print unexpand("$s2\n") if ($s2 ne "");
			} else {
				print "$next$c2\n";
			}
			$next="";
			next;
		} else {
			print $next;
		}
		$next="";
	} else {
		if (m/\"$/) {
			if (!m/\\n\"$/) {
				$next=$_;
				next;
			}
		}
	}
	print $_;
}
</script>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/v4l2-core/videobuf-core.c

@@ -572,8 +572,7 @@ int videobuf_qbuf(struct videobuf_queue *q, struct v4l2_buffer *b)
 	switch (b->memory) {
 	case V4L2_MEMORY_MMAP:
 		if (0 == buf->baddr) {
-			dprintk(1, "qbuf: mmap requested "
-				   "but buffer addr is zero!\n");
+			dprintk(1, "qbuf: mmap requested but buffer addr is zero!\n");
 			goto done;
 		}
 		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT

drivers/media/v4l2-core/videobuf2-core.c

@@ -358,8 +358,8 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
 		if (memory == VB2_MEMORY_MMAP) {
 			ret = __vb2_buf_mem_alloc(vb);
 			if (ret) {
-				dprintk(1, "failed allocating memory for "
-						"buffer %d\n", buffer);
+				dprintk(1, "failed allocating memory for buffer %d\n",
+					buffer);
 				q->bufs[vb->index] = NULL;
 				kfree(vb);
 				break;
@@ -372,8 +372,8 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum vb2_memory memory,
 			 */
 			ret = call_vb_qop(vb, buf_init, vb);
 			if (ret) {
-				dprintk(1, "buffer %d %p initialization"
-					" failed\n", buffer, vb);
+				dprintk(1, "buffer %d %p initialization failed\n",
+					buffer, vb);
 				__vb2_buf_mem_free(vb);
 				q->bufs[vb->index] = NULL;
 				kfree(vb);
@@ -997,13 +997,12 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const void *pb)
 			&& vb->planes[plane].length == planes[plane].length)
 			continue;
 
-		dprintk(3, "userspace address for plane %d changed, "
-				"reacquiring memory\n", plane);
+		dprintk(3, "userspace address for plane %d changed, reacquiring memory\n",
+			plane);
 
 		/* Check if the provided plane buffer is large enough */
 		if (planes[plane].length < vb->planes[plane].min_length) {
-			dprintk(1, "provided buffer size %u is less than "
-						"setup size %u for plane %d\n",
+			dprintk(1, "provided buffer size %u is less than setup size %u for plane %d\n",
 						planes[plane].length,
 						vb->planes[plane].min_length,
 						plane);
@@ -1032,8 +1031,8 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const void *pb)
 				planes[plane].m.userptr,
 				planes[plane].length, dma_dir);
 		if (IS_ERR(mem_priv)) {
-			dprintk(1, "failed acquiring userspace "
-						"memory for plane %d\n", plane);
+			dprintk(1, "failed acquiring userspace memory for plane %d\n",
+				plane);
 			ret = PTR_ERR(mem_priv);
 			goto err;
 		}
@@ -1123,8 +1122,7 @@ static int __qbuf_dmabuf(struct vb2_buffer *vb, const void *pb)
 			planes[plane].length = dbuf->size;
 
 		if (planes[plane].length < vb->planes[plane].min_length) {
-			dprintk(1, "invalid dmabuf length %u for plane %d, "
-				"minimum length %u\n",
+			dprintk(1, "invalid dmabuf length %u for plane %d, minimum length %u\n",
 				planes[plane].length, plane,
 				vb->planes[plane].min_length);
 			dma_buf_put(dbuf);
@@ -1472,8 +1470,7 @@ static int __vb2_wait_for_done_vb(struct vb2_queue *q, int nonblocking)
 		}
 
 		if (nonblocking) {
-			dprintk(1, "nonblocking and no buffers to dequeue, "
-								"will not wait\n");
+			dprintk(1, "nonblocking and no buffers to dequeue, will not wait\n");
 			return -EAGAIN;
 		}
 

drivers/media/v4l2-core/videobuf2-v4l2.c

@@ -60,14 +60,13 @@ static int __verify_planes_array(struct vb2_buffer *vb, const struct v4l2_buffer
 
 	/* Is memory for copying plane information present? */
 	if (b->m.planes == NULL) {
-		dprintk(1, "multi-planar buffer passed but "
-			   "planes array not provided\n");
+		dprintk(1, "multi-planar buffer passed but planes array not provided\n");
 		return -EINVAL;
 	}
 
 	if (b->length < vb->num_planes || b->length > VB2_MAX_PLANES) {
-		dprintk(1, "incorrect planes array length, "
-			   "expected %d, got %d\n", vb->num_planes, b->length);
+		dprintk(1, "incorrect planes array length, expected %d, got %d\n",
+			vb->num_planes, b->length);
 		return -EINVAL;
 	}
 
@@ -316,8 +315,7 @@ static int __fill_vb2_buffer(struct vb2_buffer *vb,
 		 * that just says that it is either a top or a bottom field,
 		 * but not which of the two it is.
 		 */
-		dprintk(1, "the field is incorrectly set to ALTERNATE "
-					"for an output buffer\n");
+		dprintk(1, "the field is incorrectly set to ALTERNATE for an output buffer\n");
 		return -EINVAL;
 	}
 	vb->timestamp = 0;

drivers/media/v4l2-core/videobuf2-vmalloc.c

@@ -151,8 +151,7 @@ static void *vb2_vmalloc_vaddr(void *buf_priv)
 	struct vb2_vmalloc_buf *buf = buf_priv;
 
 	if (!buf->vaddr) {
-		pr_err("Address of an unallocated plane requested "
-		       "or cannot map user pointer\n");
+		pr_err("Address of an unallocated plane requested or cannot map user pointer\n");
 		return NULL;
 	}