[PATCH] dma-buf: Add syntax highlighting to code listings in the document

[T.J. Mercier]

On Thu, Jan 18, 2024 at 7:33 PM Tommy Chiang <ototot at chromium.org> wrote:
>
> This patch tries to improve the display of the code listing
> on The Linux Kernel documentation website for dma-buf [1] .
>
> Originally, it appears that it was attempting to escape
> the '*' character, but looks like it's not necessary (now),
> so we are seeing something like '\*' on the webite.
>
> This patch removes these unnecessary backslashes and adds syntax
> highlighting to improve the readability of the code listing.
>
> [1] https://docs.kernel.org/driver-api/dma-buf.html
>
> Signed-off-by: Tommy Chiang <ototot at chromium.org>
> ---
>  drivers/dma-buf/dma-buf.c | 15 +++++++++------
>  1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index 8fe5aa67b167..e083a0ab06d7 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -1282,10 +1282,12 @@ EXPORT_SYMBOL_NS_GPL(dma_buf_move_notify, DMA_BUF);
>   *   vmap interface is introduced. Note that on very old 32-bit architectures
>   *   vmalloc space might be limited and result in vmap calls failing.
>   *
> - *   Interfaces::
> + *   Interfaces:
>   *
> - *      void \*dma_buf_vmap(struct dma_buf \*dmabuf, struct iosys_map \*map)
> - *      void dma_buf_vunmap(struct dma_buf \*dmabuf, struct iosys_map \*map)
> + *   .. code-block:: c
> + *
> + *     void *dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
> + *     void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map)
>   *
>   *   The vmap call can fail if there is no vmap support in the exporter, or if
>   *   it runs out of vmalloc space. Note that the dma-buf layer keeps a reference
> @@ -1342,10 +1344,11 @@ EXPORT_SYMBOL_NS_GPL(dma_buf_move_notify, DMA_BUF);
>   *   enough, since adding interfaces to intercept pagefaults and allow pte
>   *   shootdowns would increase the complexity quite a bit.
>   *
> - *   Interface::
> + *   Interface:
> + *
> + *   .. code-block:: c
>   *
> - *      int dma_buf_mmap(struct dma_buf \*, struct vm_area_struct \*,
> - *                    unsigned long);
> + *     int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *, unsigned long);
>   *
>   *   If the importing subsystem simply provides a special-purpose mmap call to
>   *   set up a mapping in userspace, calling do_mmap with &dma_buf.file will
> --
> 2.43.0.381.gb435a96ce8-goog

Reviewed-by: T.J. Mercier <tjmercier at google.com>

The code block highlighting is nice.