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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 18:14:49 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-26 18:14:49 (GMT)
commitb13bc8dda81c54a66a1c84e66f60b8feba659f28 (patch)
tree100a26eada424fa5d9b0e5eaaf4e23b8fa036fc8 /drivers/staging/sep/sep_crypto.c
parent9fc377799bc9bfd8d5cb35d0d1ea2e2458cbdbb3 (diff)
parent419e9266884fa853179ab726c27a63a9d3ae46e3 (diff)
downloadlinux-fsl-qoriq-b13bc8dda81c54a66a1c84e66f60b8feba659f28.tar.xz
Merge tag 'staging-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree patches from Greg Kroah-Hartman: "Here's the big staging tree merge for the 3.6-rc1 merge window. There are some patches in here outside of drivers/staging/, notibly the iio code (which is still stradeling the staging / not staging boundry), the pstore code, and the tracing code. All of these have gotten acks from the various subsystem maintainers to be included in this tree. The pstore and tracing patches are related, and are coming here as they replace one of the android staging drivers. Otherwise, the normal staging mess. Lots of cleanups and a few new drivers (some iio drivers, and the large csr wireless driver abomination.) Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fixed up trivial conflicts in drivers/staging/comedi/drivers/s626.h and drivers/staging/gdm72xx/netlink_k.c * tag 'staging-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1108 commits) staging: csr: delete a bunch of unused library functions staging: csr: remove csr_utf16.c staging: csr: remove csr_pmem.h staging: csr: remove CsrPmemAlloc staging: csr: remove CsrPmemFree() staging: csr: remove CsrMemAllocDma() staging: csr: remove CsrMemCalloc() staging: csr: remove CsrMemAlloc() staging: csr: remove CsrMemFree() and CsrMemFreeDma() staging: csr: remove csr_util.h staging: csr: remove CsrOffSetOf() stating: csr: remove unneeded #includes in csr_util.c staging: csr: make CsrUInt16ToHex static staging: csr: remove CsrMemCpy() staging: csr: remove CsrStrLen() staging: csr: remove CsrVsnprintf() staging: csr: remove CsrStrDup staging: csr: remove CsrStrChr() staging: csr: remove CsrStrNCmp staging: csr: remove CsrStrCmp ...
Diffstat (limited to 'drivers/staging/sep/sep_crypto.c')
-rw-r--r--drivers/staging/sep/sep_crypto.c123
1 files changed, 11 insertions, 112 deletions
diff --git a/drivers/staging/sep/sep_crypto.c b/drivers/staging/sep/sep_crypto.c
index 1cc790e..34710ce 100644
--- a/drivers/staging/sep/sep_crypto.c
+++ b/drivers/staging/sep/sep_crypto.c
@@ -44,7 +44,6 @@
#include <linux/poll.h>
#include <linux/wait.h>
#include <linux/pci.h>
-#include <linux/pci.h>
#include <linux/pm_runtime.h>
#include <linux/err.h>
#include <linux/device.h>
@@ -85,28 +84,6 @@ static void sep_dequeuer(void *data);
/* TESTING */
/**
- * crypto_sep_dump_message - dump the message that is pending
- * @sep: SEP device
- * This will only print dump if DEBUG is set; it does
- * follow kernel debug print enabling
- */
-static void crypto_sep_dump_message(struct sep_device *sep, void *msg)
-{
-#if 0
- u32 *p;
- u32 *i;
- int count;
-
- p = sep->shared_addr;
- i = (u32 *)msg;
- for (count = 0; count < 10 * 4; count += 4)
- dev_dbg(&sep->pdev->dev,
- "[PID%d] Word %d of the message is %x (local)%x\n",
- current->pid, count/4, *p++, *i++);
-#endif
-}
-
-/**
* sep_do_callback
* @work: pointer to work_struct
* This is what is called by the queue; it is generic so that it
@@ -487,55 +464,6 @@ static int partial_overlap(void *src_ptr, void *dst_ptr, u32 nbytes)
return 0;
}
-/* Debug - prints only if DEBUG is defined; follows kernel debug model */
-static void sep_dump(struct sep_device *sep, char *stg, void *start, int len)
-{
-#if 0
- int ct1;
- u8 *ptt;
-
- dev_dbg(&sep->pdev->dev,
- "Dump of %s starting at %08lx for %08x bytes\n",
- stg, (unsigned long)start, len);
- for (ct1 = 0; ct1 < len; ct1 += 1) {
- ptt = (u8 *)(start + ct1);
- dev_dbg(&sep->pdev->dev, "%02x ", *ptt);
- if (ct1 % 16 == 15)
- dev_dbg(&sep->pdev->dev, "\n");
- }
- dev_dbg(&sep->pdev->dev, "\n");
-#endif
-}
-
-/* Debug - prints only if DEBUG is defined; follows kernel debug model */
-static void sep_dump_sg(struct sep_device *sep, char *stg,
- struct scatterlist *sg)
-{
-#if 0
- int ct1, ct2;
- u8 *ptt;
-
- dev_dbg(&sep->pdev->dev, "Dump of scatterlist %s\n", stg);
-
- ct1 = 0;
- while (sg) {
- dev_dbg(&sep->pdev->dev, "page %x\n size %x", ct1,
- sg->length);
- dev_dbg(&sep->pdev->dev, "phys addr is %lx",
- (unsigned long)sg_phys(sg));
- ptt = sg_virt(sg);
- for (ct2 = 0; ct2 < sg->length; ct2 += 1) {
- dev_dbg(&sep->pdev->dev, "byte %x is %02x\n",
- ct2, (unsigned char)*(ptt + ct2));
- }
-
- ct1 += 1;
- sg = sg_next(sg);
- }
- dev_dbg(&sep->pdev->dev, "\n");
-#endif
-}
-
/* Debug - prints only if DEBUG is defined */
static void sep_dump_ivs(struct ablkcipher_request *req, char *reason)
@@ -807,7 +735,7 @@ end_function:
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
* @msg_offset: pointer to current offset (is updated)
- * @byte_array: flag ti indicate wheter endian must be changed
+ * @byte_array: flag ti indicate whether endian must be changed
* Copies data into the message area from caller
*/
static void sep_write_msg(struct this_task_ctx *ta_ctx, void *in_addr,
@@ -855,7 +783,7 @@ static void sep_make_header(struct this_task_ctx *ta_ctx, u32 *msg_offset,
* @size: size of parameter to copy (in bytes)
* @max_size: size to move up offset; SEP mesg is in word sizes
* @msg_offset: pointer to current offset (is updated)
- * @byte_array: flag ti indicate wheter endian must be changed
+ * @byte_array: flag ti indicate whether endian must be changed
* Copies data out of the message area to caller
*/
static void sep_read_msg(struct this_task_ctx *ta_ctx, void *in_addr,
@@ -990,7 +918,7 @@ static void sep_clear_out(struct this_task_ctx *ta_ctx)
/**
* The following unlocks the sep and makes it available
* to any other application
- * First, null out crypto entries in sep before relesing it
+ * First, null out crypto entries in sep before releasing it
*/
ta_ctx->sep_used->current_hash_req = NULL;
ta_ctx->sep_used->current_cypher_req = NULL;
@@ -1001,7 +929,7 @@ static void sep_clear_out(struct this_task_ctx *ta_ctx)
ta_ctx->call_status.status = 0;
- /* Remove anything confidentail */
+ /* Remove anything confidential */
memset(ta_ctx->sep_used->shared_addr, 0,
SEP_DRIVER_MESSAGE_SHARED_AREA_SIZE_IN_BYTES);
@@ -1095,8 +1023,8 @@ static int sep_crypto_take_sep(struct this_task_ctx *ta_ctx)
current->comm, sizeof(current->comm));
if (!ta_ctx->queue_elem) {
- dev_dbg(&sep->pdev->dev, "[PID%d] updating queue"
- " status error\n", current->pid);
+ dev_dbg(&sep->pdev->dev,
+ "[PID%d] updating queue status error\n", current->pid);
return -EINVAL;
}
@@ -1207,7 +1135,7 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
req->nbytes, ta_ctx->walk.blocksize, &new_sg, 1);
if (int_error < 0) {
- dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page eerror\n");
+ dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page error\n");
return -ENOMEM;
} else if (int_error == 1) {
ta_ctx->src_sg = new_sg;
@@ -1238,9 +1166,6 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
/* Key already done; this is for data */
dev_dbg(&ta_ctx->sep_used->pdev->dev, "sending data\n");
- sep_dump_sg(ta_ctx->sep_used,
- "block sg in", ta_ctx->src_sg);
-
/* check for valid data and proper spacing */
src_ptr = sg_virt(ta_ctx->src_sg);
dst_ptr = sg_virt(ta_ctx->dst_sg);
@@ -1362,14 +1287,10 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
sep_write_context(ta_ctx, &msg_offset,
&sctx->des_private_ctx,
sizeof(struct sep_des_private_context));
- sep_dump(ta_ctx->sep_used, "ctx to block des",
- &sctx->des_private_ctx, 40);
} else {
sep_write_context(ta_ctx, &msg_offset,
&sctx->aes_private_ctx,
sizeof(struct sep_aes_private_context));
- sep_dump(ta_ctx->sep_used, "ctx to block aes",
- &sctx->aes_private_ctx, 20);
}
/* conclude message */
@@ -1426,8 +1347,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
}
memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
- sep_dump(ta_ctx->sep_used, "iv",
- ta_ctx->iv, SEP_DES_IV_SIZE_BYTES);
}
if ((ta_ctx->current_request == AES_CBC) &&
@@ -1438,8 +1357,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
}
memcpy(ta_ctx->iv, ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
- sep_dump(ta_ctx->sep_used, "iv",
- ta_ctx->iv, SEP_AES_IV_SIZE_BYTES);
}
/* put together message to SEP */
@@ -1452,8 +1369,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
sep_write_msg(ta_ctx, ta_ctx->iv,
SEP_DES_IV_SIZE_BYTES, sizeof(u32) * 4,
&msg_offset, 1);
- sep_dump(ta_ctx->sep_used, "initial IV",
- ta_ctx->walk.iv, SEP_DES_IV_SIZE_BYTES);
} else {
/* Skip if ECB */
msg_offset += 4 * sizeof(u32);
@@ -1465,8 +1380,6 @@ static int sep_crypto_send_key(struct ablkcipher_request *req)
sep_write_msg(ta_ctx, ta_ctx->iv,
SEP_AES_IV_SIZE_BYTES, max_length,
&msg_offset, 1);
- sep_dump(ta_ctx->sep_used, "initial IV",
- ta_ctx->walk.iv, SEP_AES_IV_SIZE_BYTES);
} else {
/* Skip if ECB */
msg_offset += max_length;
@@ -1646,7 +1559,6 @@ static u32 crypto_post_op(struct sep_device *sep)
dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op\n");
dev_dbg(&ta_ctx->sep_used->pdev->dev, "crypto post_op message dump\n");
- crypto_sep_dump_message(ta_ctx->sep_used, ta_ctx->msg);
/* first bring msg from shared area to local area */
memcpy(ta_ctx->msg, sep->shared_addr,
@@ -1670,16 +1582,10 @@ static u32 crypto_post_op(struct sep_device *sep)
sep_read_context(ta_ctx, &msg_offset,
&sctx->des_private_ctx,
sizeof(struct sep_des_private_context));
-
- sep_dump(ta_ctx->sep_used, "ctx init des",
- &sctx->des_private_ctx, 40);
} else {
sep_read_context(ta_ctx, &msg_offset,
&sctx->aes_private_ctx,
sizeof(struct sep_aes_private_context));
-
- sep_dump(ta_ctx->sep_used, "ctx init aes",
- &sctx->aes_private_ctx, 20);
}
sep_dump_ivs(req, "after sending key to sep\n");
@@ -1758,9 +1664,6 @@ static u32 crypto_post_op(struct sep_device *sep)
sizeof(struct sep_aes_private_context));
}
- sep_dump_sg(ta_ctx->sep_used,
- "block sg out", ta_ctx->dst_sg);
-
/* Copy to correct sg if this block had oddball pages */
if (ta_ctx->dst_sg_hold)
sep_copy_sg(ta_ctx->sep_used,
@@ -1870,7 +1773,7 @@ static u32 hash_update_post_op(struct sep_device *sep)
sizeof(struct sep_hash_private_context));
/**
- * Following is only for finup; if we just completd the
+ * Following is only for finup; if we just completed the
* data portion of finup, we now need to kick off the
* finish portion of finup.
*/
@@ -2011,7 +1914,7 @@ static u32 hash_digest_post_op(struct sep_device *sep)
}
/**
- * The sep_finish function is the function that is schedule (via tasket)
+ * The sep_finish function is the function that is scheduled (via tasklet)
* by the interrupt service routine when the SEP sends and interrupt
* This is only called by the interrupt handler as a tasklet.
*/
@@ -2249,7 +2152,7 @@ static void sep_hash_update(void *data)
head_len = (block_size - int_ctx->prev_update_bytes) % block_size;
tail_len = (req->nbytes - head_len) % block_size;
- /* Make sure all pages are even block */
+ /* Make sure all pages are an even block */
int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);
@@ -2274,8 +2177,6 @@ static void sep_hash_update(void *data)
src_ptr = NULL;
}
- sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);
-
ta_ctx->dcb_input_data.app_in_address = src_ptr;
ta_ctx->dcb_input_data.data_in_size =
req->nbytes - (head_len + tail_len);
@@ -2482,7 +2383,7 @@ static void sep_hash_digest(void *data)
dev_dbg(&ta_ctx->sep_used->pdev->dev, "block_size is %x\n", block_size);
dev_dbg(&ta_ctx->sep_used->pdev->dev, "tail len is %x\n", tail_len);
- /* Make sure all pages are even block */
+ /* Make sure all pages are an even block */
int_error = sep_oddball_pages(ta_ctx->sep_used, req->src,
req->nbytes,
block_size, &new_sg, 1);
@@ -2507,8 +2408,6 @@ static void sep_hash_digest(void *data)
src_ptr = NULL;
}
- sep_dump_sg(ta_ctx->sep_used, "hash block sg in", ta_ctx->src_sg);
-
ta_ctx->dcb_input_data.app_in_address = src_ptr;
ta_ctx->dcb_input_data.data_in_size = req->nbytes - tail_len;
ta_ctx->dcb_input_data.app_out_address = NULL;