media: media/v4l2-core/videobuf-vmalloc.c: Remove dead code (0a44baa4) · Commits · 戴 / test

This code is commented since version 3.7. If there is no plan to use it in future, we can remove this dead code. Signed-off-by:

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

+0 −20

Original line number	Diff line number	Diff line
		@@ -196,26 +196,6 @@ static int __videobuf_iolock(struct videobuf_queue *q,
		}
		dprintk(1, "vmalloc is at addr %p (%d pages)\n",
		mem->vaddr, pages);

		#if 0
		int rc;
		/* Kernel userptr is used also by read() method. In this case,
		there's no need to remap, since data will be copied to user
		*/
		if (!vb->baddr)
		return 0;

		/* FIXME: to properly support USERPTR, remap should occur.
		The code below won't work, since mem->vma = NULL
		*/
		/* Try to remap memory */
		rc = remap_vmalloc_range(mem->vma, (void *)vb->baddr, 0);
		if (rc < 0) {
		printk(KERN_ERR "mmap: remap failed with error %d", rc);
		return -ENOMEM;
		}
		#endif

		break;
		case V4L2_MEMORY_OVERLAY:
		default: