From: Gustavo A. R. Silva Date: Mon, 26 Sep 2022 21:46:24 +0000 (-0500) Subject: dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper X-Git-Tag: v6.1-rc1~119^2~22 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45ecf27f300765d135f98d444957675ff6bb9837;p=thirdparty%2Flinux.git 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 Reviewed-by: Kees Cook Link: https://lore.kernel.org/r/YzIdsJqsR3LH2qEK@work Signed-off-by: Vinod Koul --- diff --git a/drivers/dma/sh/rcar-dmac.c b/drivers/dma/sh/rcar-dmac.c index 13d12d660cc20..641d689d17ff1 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); }; };