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crypto: aspeed - Replace zero-length array with flexible-array member 

Zero-length arrays are deprecated[1] and we are moving towards
adopting C99 flexible-array members instead. So, replace zero-length
array declaration in struct aspeed_sham_ctx with flex-array
member.

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>
Reviewed-by: Neal Liu <neal_liu@aspeedtech.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gustavo A. R. Silva 2023-01-09 19:39:17 -06:00 committed by Herbert Xu
parent 299bf602b3
commit f104b2169e
1 changed files with 1 additions and 1 deletions
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2
drivers/crypto/aspeed/aspeed-hace.h
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@ -183,7 +183,7 @@ struct aspeed_sham_ctx {
struct aspeed_hace_dev *hace_dev;
unsigned long flags; /* hmac flag */
struct aspeed_sha_hmac_ctx base[0];
struct aspeed_sha_hmac_ctx base[];
};
struct aspeed_sham_reqctx {