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authorLinus Torvalds <torvalds@linux-foundation.org>2015-09-27 01:05:23 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-27 01:05:23 (GMT)
commitd8cc3972b2178f9fe532306330f76bf51cb0d8bd (patch)
tree9e16fc4ff9ad97d1d5f1f9a2a261a356167ef5eb
parentc91d7072952993f96896c2fc9868f55924e7ba6c (diff)
parent09185e2756a83763bcbfe51b308b85979f0de027 (diff)
downloadlinux-d8cc3972b2178f9fe532306330f76bf51cb0d8bd.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: "This fixes the following issues: - check the return value of platform_get_irq as signed int in xgene. - skip adf_dev_restore on virtual functions in qat. - fix double-free with backlogged requests in marvell_cesa" * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: hwrng: xgene - fix handling platform_get_irq crypto: qat - VF should never trigger SBR on PH crypto: marvell - properly handle CRYPTO_TFM_REQ_MAY_BACKLOG-flagged requests
-rw-r--r--drivers/char/hw_random/xgene-rng.c7
-rw-r--r--drivers/crypto/marvell/cesa.h27
-rw-r--r--drivers/crypto/marvell/cipher.c7
-rw-r--r--drivers/crypto/marvell/hash.c8
-rw-r--r--drivers/crypto/qat/qat_common/adf_aer.c3
5 files changed, 40 insertions, 12 deletions
diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
index c37cf75..3c77645 100644
--- a/drivers/char/hw_random/xgene-rng.c
+++ b/drivers/char/hw_random/xgene-rng.c
@@ -344,11 +344,12 @@ static int xgene_rng_probe(struct platform_device *pdev)
if (IS_ERR(ctx->csr_base))
return PTR_ERR(ctx->csr_base);
- ctx->irq = platform_get_irq(pdev, 0);
- if (ctx->irq < 0) {
+ rc = platform_get_irq(pdev, 0);
+ if (rc < 0) {
dev_err(&pdev->dev, "No IRQ resource\n");
- return ctx->irq;
+ return rc;
}
+ ctx->irq = rc;
dev_dbg(&pdev->dev, "APM X-Gene RNG BASE %p ALARM IRQ %d",
ctx->csr_base, ctx->irq);
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index b60698b..bc2a55b 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -687,6 +687,33 @@ static inline u32 mv_cesa_get_int_mask(struct mv_cesa_engine *engine)
int mv_cesa_queue_req(struct crypto_async_request *req);
+/*
+ * Helper function that indicates whether a crypto request needs to be
+ * cleaned up or not after being enqueued using mv_cesa_queue_req().
+ */
+static inline int mv_cesa_req_needs_cleanup(struct crypto_async_request *req,
+ int ret)
+{
+ /*
+ * The queue still had some space, the request was queued
+ * normally, so there's no need to clean it up.
+ */
+ if (ret == -EINPROGRESS)
+ return false;
+
+ /*
+ * The queue had not space left, but since the request is
+ * flagged with CRYPTO_TFM_REQ_MAY_BACKLOG, it was added to
+ * the backlog and will be processed later. There's no need to
+ * clean it up.
+ */
+ if (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)
+ return false;
+
+ /* Request wasn't queued, we need to clean it up */
+ return true;
+}
+
/* TDMA functions */
static inline void mv_cesa_req_dma_iter_init(struct mv_cesa_dma_iter *iter,
diff --git a/drivers/crypto/marvell/cipher.c b/drivers/crypto/marvell/cipher.c
index 0745cf3..3df2f4e 100644
--- a/drivers/crypto/marvell/cipher.c
+++ b/drivers/crypto/marvell/cipher.c
@@ -189,7 +189,6 @@ static inline void mv_cesa_ablkcipher_prepare(struct crypto_async_request *req,
{
struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
-
creq->req.base.engine = engine;
if (creq->req.base.type == CESA_DMA_REQ)
@@ -431,7 +430,7 @@ static int mv_cesa_des_op(struct ablkcipher_request *req,
return ret;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS)
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ablkcipher_cleanup(req);
return ret;
@@ -551,7 +550,7 @@ static int mv_cesa_des3_op(struct ablkcipher_request *req,
return ret;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS)
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ablkcipher_cleanup(req);
return ret;
@@ -693,7 +692,7 @@ static int mv_cesa_aes_op(struct ablkcipher_request *req,
return ret;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS)
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ablkcipher_cleanup(req);
return ret;
diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
index ae9272e..e8d0d71 100644
--- a/drivers/crypto/marvell/hash.c
+++ b/drivers/crypto/marvell/hash.c
@@ -739,10 +739,8 @@ static int mv_cesa_ahash_update(struct ahash_request *req)
return 0;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS) {
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ahash_cleanup(req);
- return ret;
- }
return ret;
}
@@ -766,7 +764,7 @@ static int mv_cesa_ahash_final(struct ahash_request *req)
return 0;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS)
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ahash_cleanup(req);
return ret;
@@ -791,7 +789,7 @@ static int mv_cesa_ahash_finup(struct ahash_request *req)
return 0;
ret = mv_cesa_queue_req(&req->base);
- if (ret && ret != -EINPROGRESS)
+ if (mv_cesa_req_needs_cleanup(&req->base, ret))
mv_cesa_ahash_cleanup(req);
return ret;
diff --git a/drivers/crypto/qat/qat_common/adf_aer.c b/drivers/crypto/qat/qat_common/adf_aer.c
index a57b419..0a5ca0b 100644
--- a/drivers/crypto/qat/qat_common/adf_aer.c
+++ b/drivers/crypto/qat/qat_common/adf_aer.c
@@ -88,6 +88,9 @@ static void adf_dev_restore(struct adf_accel_dev *accel_dev)
struct pci_dev *parent = pdev->bus->self;
uint16_t bridge_ctl = 0;
+ if (accel_dev->is_vf)
+ return;
+
dev_info(&GET_DEV(accel_dev), "Resetting device qat_dev%d\n",
accel_dev->accel_id);