diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/crypto/talitos.c | 49 | ||||
-rw-r--r-- | drivers/isdn/hardware/mISDN/Kconfig | 1 | ||||
-rw-r--r-- | drivers/isdn/mISDN/layer2.c | 2 | ||||
-rw-r--r-- | drivers/isdn/mISDN/layer2.h | 2 | ||||
-rw-r--r-- | drivers/isdn/mISDN/tei.c | 2 | ||||
-rw-r--r-- | drivers/misc/Kconfig | 2 | ||||
-rw-r--r-- | drivers/s390/kvm/Makefile | 2 |
7 files changed, 40 insertions, 20 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index b11943dadefd..681c15f42083 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -99,6 +99,9 @@ struct talitos_private { /* next channel to be assigned next incoming descriptor */ atomic_t last_chan; + /* per-channel number of requests pending in channel h/w fifo */ + atomic_t *submit_count; + /* per-channel request fifo */ struct talitos_request **fifo; @@ -263,15 +266,15 @@ static int talitos_submit(struct device *dev, struct talitos_desc *desc, spin_lock_irqsave(&priv->head_lock[ch], flags); - head = priv->head[ch]; - request = &priv->fifo[ch][head]; - - if (request->desc) { - /* request queue is full */ + if (!atomic_inc_not_zero(&priv->submit_count[ch])) { + /* h/w fifo is full */ spin_unlock_irqrestore(&priv->head_lock[ch], flags); return -EAGAIN; } + head = priv->head[ch]; + request = &priv->fifo[ch][head]; + /* map descriptor and save caller data */ request->dma_desc = dma_map_single(dev, desc, sizeof(*desc), DMA_BIDIRECTIONAL); @@ -335,6 +338,9 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch) priv->tail[ch] = (tail + 1) & (priv->fifo_len - 1); spin_unlock_irqrestore(&priv->tail_lock[ch], flags); + + atomic_dec(&priv->submit_count[ch]); + saved_req.callback(dev, saved_req.desc, saved_req.context, status); /* channel may resume processing in single desc error case */ @@ -842,7 +848,7 @@ static int sg_to_link_tbl(struct scatterlist *sg, int sg_count, /* adjust (decrease) last one (or two) entry's len to cryptlen */ link_tbl_ptr--; - while (link_tbl_ptr->len <= (-cryptlen)) { + while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) { /* Empty this entry, and move to previous one */ cryptlen += be16_to_cpu(link_tbl_ptr->len); link_tbl_ptr->len = 0; @@ -874,7 +880,7 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq, unsigned int cryptlen = areq->cryptlen; unsigned int authsize = ctx->authsize; unsigned int ivsize; - int sg_count; + int sg_count, ret; /* hmac key */ map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key, @@ -978,7 +984,12 @@ static int ipsec_esp(struct ipsec_esp_edesc *edesc, struct aead_request *areq, map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv, 0, DMA_FROM_DEVICE); - return talitos_submit(dev, desc, callback, areq); + ret = talitos_submit(dev, desc, callback, areq); + if (ret != -EINPROGRESS) { + ipsec_esp_unmap(dev, edesc, areq); + kfree(edesc); + } + return ret; } @@ -1009,6 +1020,8 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, struct talitos_ctx *ctx = crypto_aead_ctx(authenc); struct ipsec_esp_edesc *edesc; int src_nents, dst_nents, alloc_len, dma_len; + gfp_t flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL : + GFP_ATOMIC; if (areq->cryptlen + ctx->authsize > TALITOS_MAX_DATA_LEN) { dev_err(ctx->dev, "cryptlen exceeds h/w max limit\n"); @@ -1022,7 +1035,7 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, dst_nents = src_nents; } else { dst_nents = sg_count(areq->dst, areq->cryptlen + ctx->authsize); - dst_nents = (dst_nents == 1) ? 0 : src_nents; + dst_nents = (dst_nents == 1) ? 0 : dst_nents; } /* @@ -1040,7 +1053,7 @@ static struct ipsec_esp_edesc *ipsec_esp_edesc_alloc(struct aead_request *areq, alloc_len += icv_stashing ? ctx->authsize : 0; } - edesc = kmalloc(alloc_len, GFP_DMA); + edesc = kmalloc(alloc_len, GFP_DMA | flags); if (!edesc) { dev_err(ctx->dev, "could not allocate edescriptor\n"); return ERR_PTR(-ENOMEM); @@ -1337,6 +1350,7 @@ static int __devexit talitos_remove(struct of_device *ofdev) if (hw_supports(dev, DESC_HDR_SEL0_RNG)) talitos_unregister_rng(dev); + kfree(priv->submit_count); kfree(priv->tail); kfree(priv->head); @@ -1466,9 +1480,6 @@ static int talitos_probe(struct of_device *ofdev, goto err_out; } - of_node_put(np); - np = NULL; - priv->head_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels, GFP_KERNEL); priv->tail_lock = kmalloc(sizeof(spinlock_t) * priv->num_channels, @@ -1504,6 +1515,16 @@ static int talitos_probe(struct of_device *ofdev, } } + priv->submit_count = kmalloc(sizeof(atomic_t) * priv->num_channels, + GFP_KERNEL); + if (!priv->submit_count) { + dev_err(dev, "failed to allocate fifo submit count space\n"); + err = -ENOMEM; + goto err_out; + } + for (i = 0; i < priv->num_channels; i++) + atomic_set(&priv->submit_count[i], -priv->chfifo_len); + priv->head = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); priv->tail = kzalloc(sizeof(int) * priv->num_channels, GFP_KERNEL); if (!priv->head || !priv->tail) { @@ -1559,8 +1580,6 @@ static int talitos_probe(struct of_device *ofdev, err_out: talitos_remove(ofdev); - if (np) - of_node_put(np); return err; } diff --git a/drivers/isdn/hardware/mISDN/Kconfig b/drivers/isdn/hardware/mISDN/Kconfig index 14793480c453..9cd5f5f62280 100644 --- a/drivers/isdn/hardware/mISDN/Kconfig +++ b/drivers/isdn/hardware/mISDN/Kconfig @@ -7,6 +7,7 @@ config MISDN_HFCPCI tristate "Support for HFC PCI cards" depends on MISDN depends on PCI + depends on VIRT_TO_BUS help Enable support for cards with Cologne Chip AG's HFC PCI chip. diff --git a/drivers/isdn/mISDN/layer2.c b/drivers/isdn/mISDN/layer2.c index f5ad888ee71e..a7915a156c04 100644 --- a/drivers/isdn/mISDN/layer2.c +++ b/drivers/isdn/mISDN/layer2.c @@ -2030,7 +2030,7 @@ release_l2(struct layer2 *l2) skb_queue_purge(&l2->down_queue); ReleaseWin(l2); if (test_bit(FLG_LAPD, &l2->flag)) { - release_tei(l2); + TEIrelease(l2); if (l2->ch.st) l2->ch.st->dev->D.ctrl(&l2->ch.st->dev->D, CLOSE_CHANNEL, NULL); diff --git a/drivers/isdn/mISDN/layer2.h b/drivers/isdn/mISDN/layer2.h index de2dd02056a3..6293f80dc2d3 100644 --- a/drivers/isdn/mISDN/layer2.h +++ b/drivers/isdn/mISDN/layer2.h @@ -96,7 +96,7 @@ extern int tei_l2(struct layer2 *, u_int, u_long arg); /* from tei.c */ extern int l2_tei(struct layer2 *, u_int, u_long arg); -extern void release_tei(struct layer2 *); +extern void TEIrelease(struct layer2 *); extern int TEIInit(u_int *); extern void TEIFree(void); diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c index 56a76a0ffddd..6fbae42127bf 100644 --- a/drivers/isdn/mISDN/tei.c +++ b/drivers/isdn/mISDN/tei.c @@ -945,7 +945,7 @@ l2_tei(struct layer2 *l2, u_int cmd, u_long arg) } void -release_tei(struct layer2 *l2) +TEIrelease(struct layer2 *l2) { struct teimgr *tm = l2->tm; u_long flags; diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 321eb9134635..f5ade1904aad 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -360,7 +360,7 @@ config THINKPAD_ACPI_VIDEO If you are not sure, say Y here. config THINKPAD_ACPI_HOTKEY_POLL - bool "Suport NVRAM polling for hot keys" + bool "Support NVRAM polling for hot keys" depends on THINKPAD_ACPI default y ---help--- diff --git a/drivers/s390/kvm/Makefile b/drivers/s390/kvm/Makefile index 4a5ec39f9ca6..0815690ac1e0 100644 --- a/drivers/s390/kvm/Makefile +++ b/drivers/s390/kvm/Makefile @@ -6,4 +6,4 @@ # it under the terms of the GNU General Public License (version 2 only) # as published by the Free Software Foundation. -obj-$(CONFIG_VIRTIO) += kvm_virtio.o +obj-$(CONFIG_S390_GUEST) += kvm_virtio.o |