| Message ID | Y7zBxbEAvcEEJRie@work (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [next] crypto: aspeed - Replace zero-length array with flexible-array member | expand |
> 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-lengt > h-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/crypto/aspeed/aspeed-hace.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/crypto/aspeed/aspeed-hace.h > b/drivers/crypto/aspeed/aspeed-hace.h > index f2cde23b56ae..05d0a15d546d 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 { > -- > 2.34.1 Reviewed-by: Neal Liu <neal_liu@aspeedtech.com>
On Mon, Jan 09, 2023 at 07:39:17PM -0600, Gustavo A. R. Silva wrote: > 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: Kees Cook <keescook@chromium.org>
On Mon, Jan 09, 2023 at 07:39:17PM -0600, Gustavo A. R. Silva wrote: > 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> > --- > drivers/crypto/aspeed/aspeed-hace.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Patch applied. Thanks.
diff --git a/drivers/crypto/aspeed/aspeed-hace.h b/drivers/crypto/aspeed/aspeed-hace.h index f2cde23b56ae..05d0a15d546d 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 {
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> --- drivers/crypto/aspeed/aspeed-hace.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)