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dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper

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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>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/YzIdsJqsR3LH2qEK@work
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2022-09-26 16:46:24 -05:00 committed by Vinod Koul
parent d1083fd043
commit 45ecf27f30
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/sh/rcar-dmac.c
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@ -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);
};
};