On Wed, Sep 4, 2024 at 9:39 AM Hongbo Li <lihongbo22@xxxxxxxxxx> wrote:
>
> Add the __counted_by compiler attribute to the flexible array member
> entries to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
> CONFIG_FORTIFY_SOURCE.
>
> Signed-off-by: Hongbo Li <lihongbo22@xxxxxxxxxx>
> ---
> drivers/dma/loongson1-apb-dma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/dma/loongson1-apb-dma.c b/drivers/dma/loongson1-apb-dma.c
> index ca43c67a8203..be0dbda84dd2 100644
> --- a/drivers/dma/loongson1-apb-dma.c
> +++ b/drivers/dma/loongson1-apb-dma.c
> @@ -78,7 +78,7 @@ struct ls1x_dma_chan {
> struct ls1x_dma {
> struct dma_device ddev;
> unsigned int nr_chans;
> - struct ls1x_dma_chan chan[];
> + struct ls1x_dma_chan chan[] __counted_by(nr_chans);
> };
>
> static irqreturn_t ls1x_dma_irq_handler(int irq, void *data);
> --
> 2.34.1
>
Reviewed-by: Keguang Zhang <keguang.zhang@xxxxxxxxx>
--
Best regards,
Keguang Zhang
