crypto: chelsio - Fix flexible struct array warning

This patch fixes the sparse warning about arrays of flexible
structures by removing an unnecessary use of them in struct
__crypto_ctx.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/chelsio/chcr_algo.c

@@ -98,17 +98,17 @@ static int chcr_handle_cipher_resp(struct skcipher_request *req,
 
 static inline  struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx)
 {
-	return ctx->crypto_ctx->aeadctx;
+	return &ctx->crypto_ctx->aeadctx;
 }
 
 static inline struct ablk_ctx *ABLK_CTX(struct chcr_context *ctx)
 {
-	return ctx->crypto_ctx->ablkctx;
+	return &ctx->crypto_ctx->ablkctx;
 }
 
 static inline struct hmac_ctx *HMAC_CTX(struct chcr_context *ctx)
 {
-	return ctx->crypto_ctx->hmacctx;
+	return &ctx->crypto_ctx->hmacctx;
 }
 
 static inline struct chcr_gcm_ctx *GCM_CTX(struct chcr_aead_ctx *gctx)

drivers/crypto/chelsio/chcr_crypto.h

@@ -248,9 +248,9 @@ struct hmac_ctx {
 
 struct __crypto_ctx {
 	union {
-		DECLARE_FLEX_ARRAY(struct hmac_ctx, hmacctx);
-		DECLARE_FLEX_ARRAY(struct ablk_ctx, ablkctx);
-		DECLARE_FLEX_ARRAY(struct chcr_aead_ctx, aeadctx);
+		struct hmac_ctx hmacctx;
+		struct ablk_ctx ablkctx;
+		struct chcr_aead_ctx aeadctx;
 	};
 };