[PATCH -next] dmaengine: Loongson1: Annotate struct ls1x_dma_chan with __counted_by()

[Hongbo Li]

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 <lihongb...@huawei.com>
---
 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