dma-buf: remove useless FMODE_LSEEK flag

This is already set by anon_inode_getfile(), since dma_buf_fops has
non-NULL ->llseek, so we don't need to set it here too.

Acked-by: Daniel Vetter <[email protected]>
Acked-by: Sumit Semwal <[email protected]>
Signed-off-by: Jason A. Donenfeld <[email protected]>
Signed-off-by: Al Viro <[email protected]>

Author: zx2c4

drivers/dma-buf/dma-buf.c

@@ -549,7 +549,6 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
 		goto err_dmabuf;
 	}
 
-	file->f_mode |= FMODE_LSEEK;
 	dmabuf->file = file;
 
 	mutex_init(&dmabuf->lock);