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Subject[PATCH][next] dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members in unions.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/217
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/dma/sh/rcar-dmac.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c
index 13d12d660cc2..641d689d17ff 100644
--- a/drivers/dma/sh/rcar-dmac.c
+++ b/drivers/dma/sh/rcar-dmac.c
@@ -103,8 +103,8 @@ struct rcar_dmac_desc_page {
struct list_head node;

union {
- struct rcar_dmac_desc descs[0];
- struct rcar_dmac_xfer_chunk chunks[0];
+ DECLARE_FLEX_ARRAY(struct rcar_dmac_desc, descs);
+ DECLARE_FLEX_ARRAY(struct rcar_dmac_xfer_chunk, chunks);
};
};

--
2.34.1
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