From 991c569c5df68609b24a0aba5e5fd4879225c4cf Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Fri, 22 Jun 2012 19:42:38 -0500 Subject: [PATCH] crypto: caam - fix descriptor length adjustments for protocol descriptors init_desc, by always ORing with 1 for the descriptor header inclusion into the descriptor length, and init_sh_desc_pdb, by always specifying the descriptor length modification for the PDB via options, would not allow for odd length PDBs to be embedded in the constructed descriptor length. Fix this by simply changing the OR to an addition. also round-up pdb_bytes to the next SEC command unit size, to allow for, e.g., optional packet header bytes that aren't a multiple of CAAM_CMD_SZ. Reported-by: Radu-Andrei BULIE Signed-off-by: Kim Phillips Cc: Yashpal Dutta Signed-off-by: Herbert Xu --- drivers/crypto/caam/desc_constr.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h index 0d31e27b18ea..8e1056fac681 100644 --- a/drivers/crypto/caam/desc_constr.h +++ b/drivers/crypto/caam/desc_constr.h @@ -51,7 +51,7 @@ static inline void *sh_desc_pdb(u32 *desc) static inline void init_desc(u32 *desc, u32 options) { - *desc = options | HDR_ONE | 1; + *desc = (options | HDR_ONE) + 1; } static inline void init_sh_desc(u32 *desc, u32 options) @@ -62,7 +62,7 @@ static inline void init_sh_desc(u32 *desc, u32 options) static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes) { - u32 pdb_len = pdb_bytes / CAAM_CMD_SZ + 1; + u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ; init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) | options); -- 2.11.0