From: Gustavo A. R. Silva Date: Tue, 10 Jan 2023 01:39:17 +0000 (-0600) Subject: crypto: aspeed - Replace zero-length array with flexible-array member X-Git-Tag: v6.3-rc1~163^2~112 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f104b2169e6841b1629ff8cea15b751bc6f9a0e7;p=thirdparty%2Fkernel%2Flinux.git 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 Reviewed-by: Neal Liu Reviewed-by: Kees Cook Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/aspeed/aspeed-hace.h b/drivers/crypto/aspeed/aspeed-hace.h index f2cde23b56aea..05d0a15d546da 100644 --- a/drivers/crypto/aspeed/aspeed-hace.h +++ b/drivers/crypto/aspeed/aspeed-hace.h @@ -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 {