crypto: caam - fix start index for Protocol shared descriptors
authorYashpal Dutta <yashpal.dutta@freescale.com>
Sat, 23 Jun 2012 00:42:37 +0000 (19:42 -0500)
committerHerbert Xu <herbert@gondor.apana.org.au>
Wed, 27 Jun 2012 06:42:03 +0000 (14:42 +0800)
In case of protocol acceleration descriptors, Shared descriptor header must
carry size of header length + PDB length in words which will be skipped by
DECO while processing descriptor to provide first command word offset

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/caam/desc_constr.h

index 348b882..0d31e27 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * caam descriptor construction helper functions
  *
- * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2008-2012 Freescale Semiconductor, Inc.
  */
 
 #include "desc.h"
@@ -64,7 +64,7 @@ static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
 {
        u32 pdb_len = pdb_bytes / CAAM_CMD_SZ + 1;
 
-       init_sh_desc(desc, ((pdb_len << HDR_START_IDX_SHIFT) + pdb_len) |
+       init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) |
                     options);
 }