From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: Vinod Koul <vkoul@kernel.org>
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
linux-hardening@vger.kernel.org
Subject: [PATCH][next] dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
Date: Mon, 26 Sep 2022 16:46:24 -0500 [thread overview]
Message-ID: <YzIdsJqsR3LH2qEK@work> (raw)
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
next reply other threads:[~2022-09-26 21:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 21:46 Gustavo A. R. Silva [this message]
2022-09-26 22:01 ` [PATCH][next] dmaengine: sh: rcar-dmac: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper Kees Cook
2022-09-29 15:46 ` Vinod Koul
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