[1/2] crypto: talitos: Clean ups and comment fixes for ablkcipher commands

Commit Message

Martin Hicks Feb. 20, 2015, 5 p.m. UTC

This just cleans up some of the initializers, and improves the comments
should any other ablkcipher modes be added in the future.  The header
words 1 and 5 have more possibilities than just passing an IV.  These
are pointers to the Cipher Context in/out registers.

Signed-off-by: Martin Hicks <[e-mail]>
---
 drivers/crypto/talitos.c |   12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

Patch

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 226654c..6b2a19a 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1377,11 +1377,9 @@  static int common_nonsnoop(struct talitos_edesc *edesc,
 	int sg_count, ret;
 
 	/* first DWORD empty */
-	desc->ptr[0].len = 0;
-	to_talitos_ptr(&desc->ptr[0], 0);
-	desc->ptr[0].j_extent = 0;
+	desc->ptr[0] = zero_entry;
 
-	/* cipher iv */
+	/* cipher context */
 	to_talitos_ptr(&desc->ptr[1], edesc->iv_dma);
 	desc->ptr[1].len = cpu_to_be16(ivsize);
 	desc->ptr[1].j_extent = 0;
@@ -1444,14 +1442,12 @@  static int common_nonsnoop(struct talitos_edesc *edesc,
 					   edesc->dma_len, DMA_BIDIRECTIONAL);
 	}
 
-	/* iv out */
+	/* cipher context out */
 	map_single_talitos_ptr(dev, &desc->ptr[5], ivsize, ctx->iv, 0,
 			       DMA_FROM_DEVICE);
 
 	/* last DWORD empty */
-	desc->ptr[6].len = 0;
-	to_talitos_ptr(&desc->ptr[6], 0);
-	desc->ptr[6].j_extent = 0;
+	desc->ptr[6] = zero_entry;
 
 	edesc->req.callback = callback;
 	edesc->req.context = areq;