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Subject[PATCH][next] RDMA/erdma: Replace zero-length arrays with flexible-array members
Zero-length arrays are deprecated[1] and we are moving towards
adopting C99 flexible-array members instead. So, replace zero-length
arrays, in a couple of structures, with flex-array members.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [2].

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays [1]
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2]
Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/infiniband/hw/erdma/erdma_hw.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/erdma/erdma_hw.h b/drivers/infiniband/hw/erdma/erdma_hw.h
index ab371fec610c..4c38d99c73f1 100644
--- a/drivers/infiniband/hw/erdma/erdma_hw.h
+++ b/drivers/infiniband/hw/erdma/erdma_hw.h
@@ -397,7 +397,7 @@ struct erdma_write_sqe {

__le32 rsvd;

- struct erdma_sge sgl[0];
+ struct erdma_sge sgl[];
};

struct erdma_send_sqe {
@@ -408,7 +408,7 @@ struct erdma_send_sqe {
};

__le32 length;
- struct erdma_sge sgl[0];
+ struct erdma_sge sgl[];
};

struct erdma_readreq_sqe {
--
2.34.1
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