crypto: LLVMLinux: Remove VLAIS usage from crypto/testmgr.c

Replaced the use of a Variable Length Array In Struct (VLAIS) with a C99
compliant equivalent. This patch allocates the appropriate amount of memory
using a char array using the SHASH_DESC_ON_STACK macro.

The new code can be compiled with both gcc and clang.

Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Behan Webster <behanw@converseincode.com>
Reviewed-by: Mark Charlebois <charlebm@gmail.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: pageexec@freemail.hu

1 files changed, 6 insertions, 8 deletions

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 9459dfd7357f..29a0cbdd0d19 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -1678,16 +1678,14 @@ static int alg_test_crc32c(const struct alg_test_desc *desc,
         }
 
         do {
-                struct {
-                        struct shash_desc shash;
-                        char ctx[crypto_shash_descsize(tfm)];
-                } sdesc;
+                SHASH_DESC_ON_STACK(shash, tfm);
+                u32 *ctx = (u32 *)shash_desc_ctx(shash);
 
-                sdesc.shash.tfm = tfm;
-                sdesc.shash.flags = 0;
+                shash->tfm = tfm;
+                shash->flags = 0;
 
-                *(u32 *)sdesc.ctx = le32_to_cpu(420553207);
-                err = crypto_shash_final(&sdesc.shash, (u8 *)&val);
+                *ctx = le32_to_cpu(420553207);
+                err = crypto_shash_final(shash, (u8 *)&val);
                 if (err) {
                         printk(KERN_ERR "alg: crc32c: Operation failed for "
                                "%s: %d\n", driver, err);