crypto: Replace zero-length array with flexible-array

There is a regular need in the kernel to provide a way to declare having a
dynamically sized set of trailing elements in a structure. Kernel code should
always use “flexible array members”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h
index b3fdbdc..31e427e 100644 (file)
--- a/drivers/crypto/chelsio/chcr_crypto.h
+++ b/drivers/crypto/chelsio/chcr_crypto.h
@@ -223,7 +223,7 @@ struct chcr_authenc_ctx {
 
 struct __aead_ctx {
        struct chcr_gcm_ctx gcm[0];
-       struct chcr_authenc_ctx authenc[0];
+       struct chcr_authenc_ctx authenc[];
 };
 
 struct chcr_aead_ctx {
@@ -235,7 +235,7 @@ struct chcr_aead_ctx {
        u8 nonce[4];
        u16 hmac_ctrl;
        u16 mayverify;
-       struct  __aead_ctx ctx[0];
+       struct  __aead_ctx ctx[];
 };
 
 struct hmac_ctx {
@@ -247,7 +247,7 @@ struct hmac_ctx {
 struct __crypto_ctx {
        struct hmac_ctx hmacctx[0];
        struct ablk_ctx ablkctx[0];
-       struct chcr_aead_ctx aeadctx[0];
+       struct chcr_aead_ctx aeadctx[];
 };
 
 struct chcr_context {
@@ -257,7 +257,7 @@ struct chcr_context {
        unsigned int  ntxq;
        unsigned int  nrxq;
        struct completion cbc_aes_aio_done;
-       struct __crypto_ctx crypto_ctx[0];
+       struct __crypto_ctx crypto_ctx[];
 };
 
 struct chcr_hctx_per_wr {