Merge tag 'v6.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a regression in the caam driver"
* tag 'v6.3-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: caam - Fix edesc/iv ordering mixup
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 4a9b998..12b1c83 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -60,7 +60,11 @@
#include <crypto/xts.h>
#include <asm/unaligned.h>
#include <linux/dma-mapping.h>
+#include <linux/device.h>
+#include <linux/err.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
/*
* crypto alg
@@ -1000,6 +1004,13 @@
crypto_finalize_aead_request(jrp->engine, req, ecode);
}
+static inline u8 *skcipher_edesc_iv(struct skcipher_edesc *edesc)
+{
+
+ return PTR_ALIGN((u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
+ dma_get_cache_alignment());
+}
+
static void skcipher_crypt_done(struct device *jrdev, u32 *desc, u32 err,
void *context)
{
@@ -1027,8 +1038,7 @@
* This is used e.g. by the CTS mode.
*/
if (ivsize && !ecode) {
- memcpy(req->iv, (u8 *)edesc->sec4_sg + edesc->sec4_sg_bytes,
- ivsize);
+ memcpy(req->iv, skcipher_edesc_iv(edesc), ivsize);
print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
@@ -1683,18 +1693,19 @@
/*
* allocate space for base edesc and hw desc commands, link tables, IV
*/
- aligned_size = ALIGN(ivsize, __alignof__(*edesc));
- aligned_size += sizeof(*edesc) + desc_bytes + sec4_sg_bytes;
+ aligned_size = sizeof(*edesc) + desc_bytes + sec4_sg_bytes;
aligned_size = ALIGN(aligned_size, dma_get_cache_alignment());
- iv = kzalloc(aligned_size, flags);
- if (!iv) {
+ aligned_size += ~(ARCH_KMALLOC_MINALIGN - 1) &
+ (dma_get_cache_alignment() - 1);
+ aligned_size += ALIGN(ivsize, dma_get_cache_alignment());
+ edesc = kzalloc(aligned_size, flags);
+ if (!edesc) {
dev_err(jrdev, "could not allocate extended descriptor\n");
caam_unmap(jrdev, req->src, req->dst, src_nents, dst_nents, 0,
0, 0, 0);
return ERR_PTR(-ENOMEM);
}
- edesc = (void *)(iv + ALIGN(ivsize, __alignof__(*edesc)));
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
edesc->mapped_src_nents = mapped_src_nents;
@@ -1706,6 +1717,7 @@
/* Make sure IV is located in a DMAable area */
if (ivsize) {
+ iv = skcipher_edesc_iv(edesc);
memcpy(iv, req->iv, ivsize);
iv_dma = dma_map_single(jrdev, iv, ivsize, DMA_BIDIRECTIONAL);
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index 5e218bf..743ce50 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -20,8 +20,11 @@
#include "caamalg_desc.h"
#include <crypto/xts.h>
#include <asm/unaligned.h>
+#include <linux/device.h>
+#include <linux/err.h>
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
+#include <linux/string.h>
/*
* crypto alg
@@ -1204,6 +1207,12 @@
false);
}
+static inline u8 *skcipher_edesc_iv(struct skcipher_edesc *edesc)
+{
+ return PTR_ALIGN((u8 *)&edesc->sgt[0] + edesc->qm_sg_bytes,
+ dma_get_cache_alignment());
+}
+
static void skcipher_done(struct caam_drv_req *drv_req, u32 status)
{
struct skcipher_edesc *edesc;
@@ -1236,8 +1245,7 @@
* This is used e.g. by the CTS mode.
*/
if (!ecode)
- memcpy(req->iv, (u8 *)&edesc->sgt[0] + edesc->qm_sg_bytes,
- ivsize);
+ memcpy(req->iv, skcipher_edesc_iv(edesc), ivsize);
qi_cache_free(edesc);
skcipher_request_complete(req, ecode);
@@ -1259,6 +1267,7 @@
int dst_sg_idx, qm_sg_ents, qm_sg_bytes;
struct qm_sg_entry *sg_table, *fd_sgt;
struct caam_drv_ctx *drv_ctx;
+ unsigned int len;
drv_ctx = get_drv_ctx(ctx, encrypt ? ENCRYPT : DECRYPT);
if (IS_ERR(drv_ctx))
@@ -1319,9 +1328,12 @@
qm_sg_ents = 1 + pad_sg_nents(qm_sg_ents);
qm_sg_bytes = qm_sg_ents * sizeof(struct qm_sg_entry);
- if (unlikely(ALIGN(ivsize, __alignof__(*edesc)) +
- offsetof(struct skcipher_edesc, sgt) + qm_sg_bytes >
- CAAM_QI_MEMCACHE_SIZE)) {
+
+ len = offsetof(struct skcipher_edesc, sgt) + qm_sg_bytes;
+ len = ALIGN(len, dma_get_cache_alignment());
+ len += ivsize;
+
+ if (unlikely(len > CAAM_QI_MEMCACHE_SIZE)) {
dev_err(qidev, "No space for %d S/G entries and/or %dB IV\n",
qm_sg_ents, ivsize);
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents, 0,
@@ -1330,18 +1342,24 @@
}
/* allocate space for base edesc, link tables and IV */
- iv = qi_cache_alloc(flags);
- if (unlikely(!iv)) {
+ edesc = qi_cache_alloc(flags);
+ if (unlikely(!edesc)) {
dev_err(qidev, "could not allocate extended descriptor\n");
caam_unmap(qidev, req->src, req->dst, src_nents, dst_nents, 0,
0, DMA_NONE, 0, 0);
return ERR_PTR(-ENOMEM);
}
- edesc = (void *)(iv + ALIGN(ivsize, __alignof__(*edesc)));
+ edesc->src_nents = src_nents;
+ edesc->dst_nents = dst_nents;
+ edesc->qm_sg_bytes = qm_sg_bytes;
+ edesc->drv_req.app_ctx = req;
+ edesc->drv_req.cbk = skcipher_done;
+ edesc->drv_req.drv_ctx = drv_ctx;
/* Make sure IV is located in a DMAable area */
sg_table = &edesc->sgt[0];
+ iv = skcipher_edesc_iv(edesc);
memcpy(iv, req->iv, ivsize);
iv_dma = dma_map_single(qidev, iv, ivsize, DMA_BIDIRECTIONAL);
@@ -1353,13 +1371,7 @@
return ERR_PTR(-ENOMEM);
}
- edesc->src_nents = src_nents;
- edesc->dst_nents = dst_nents;
edesc->iv_dma = iv_dma;
- edesc->qm_sg_bytes = qm_sg_bytes;
- edesc->drv_req.app_ctx = req;
- edesc->drv_req.cbk = skcipher_done;
- edesc->drv_req.drv_ctx = drv_ctx;
dma_to_qm_sg_one(sg_table, iv_dma, ivsize, 0);
sg_to_qm_sg(req->src, req->cryptlen, sg_table + 1, 0);
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index 4c52c93..2ad2c10 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -8,7 +8,13 @@
*/
#include <linux/cpumask.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
#include <linux/kthread.h>
+#include <linux/netdevice.h>
+#include <linux/slab.h>
+#include <linux/string.h>
#include <soc/fsl/qman.h>
#include "debugfs.h"
@@ -755,8 +761,8 @@
napi_enable(irqtask);
}
- qi_cache = kmem_cache_create("caamqicache", CAAM_QI_MEMCACHE_SIZE, 0,
- 0, NULL);
+ qi_cache = kmem_cache_create("caamqicache", CAAM_QI_MEMCACHE_SIZE,
+ dma_get_cache_alignment(), 0, NULL);
if (!qi_cache) {
dev_err(qidev, "Can't allocate CAAM cache\n");
free_rsp_fqs();
