pytorch

298cc5c6 - Add vmap support for `torch.nn.functional.smooth_l1_loss` (#98357)

Add vmap support for `torch.nn.functional.smooth_l1_loss` (#98357) Partially fixes #97246 and #97558. Pull Request resolved: https://github.com/pytorch/pytorch/pull/98357 Approved by: https://github.com/kshitij12345