diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-08 18:47:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-12-08 18:47:25 -0800 |
| commit | f64001ef16312e94deb28297f5ffd4ada3e32ae9 (patch) | |
| tree | 9b00f1efc3f593e9df7c7630ae29fd28d15df0a1 /drivers/misc/mic/host/mic_virtio.c | |
| parent | b19d69c72d4e3da67f0feb2ecf45d6e60c82baf1 (diff) | |
| parent | 76a9635979e543f04a5885198e68ff28e3311b67 (diff) | |
Merge tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Nothing huge, just a few small bugfixes for problems reported, and a
device id update"
* tag 'char-misc-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: add 9 series PCH mei device ids
drivers/char/i8k.c: add Dell XPLS L421X
MAINTAINERS: add HSI subsystem
misc: mic: Suppress memory space sparse warnings
misc: mic: Fix endianness issues.
misc: mic: Fix user space namespace pollution from mic_common.h.
misc: mic: Bug fix for sysfs poll usage.
misc: mic: Minor bug fix in 'retry' loops.
misc: mic: Change mic_notify(...) to return true.
extcon: remove freed groups caused the panic or warning in unregister flow
extcon: arizona: Get pdata from arizona structure not device
Diffstat (limited to 'drivers/misc/mic/host/mic_virtio.c')
| -rw-r--r-- | drivers/misc/mic/host/mic_virtio.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c index 5b8494bd1e0..e04bb4fe682 100644 --- a/drivers/misc/mic/host/mic_virtio.c +++ b/drivers/misc/mic/host/mic_virtio.c @@ -41,7 +41,7 @@ static int mic_virtio_copy_to_user(struct mic_vdev *mvdev, * We are copying from IO below an should ideally use something * like copy_to_user_fromio(..) if it existed. */ - if (copy_to_user(ubuf, dbuf, len)) { + if (copy_to_user(ubuf, (void __force *)dbuf, len)) { err = -EFAULT; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err); @@ -66,7 +66,7 @@ static int mic_virtio_copy_from_user(struct mic_vdev *mvdev, * We are copying to IO below and should ideally use something * like copy_from_user_toio(..) if it existed. */ - if (copy_from_user(dbuf, ubuf, len)) { + if (copy_from_user((void __force *)dbuf, ubuf, len)) { err = -EFAULT; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, err); @@ -293,7 +293,7 @@ static void mic_virtio_init_post(struct mic_vdev *mvdev) continue; } mvdev->mvr[i].vrh.vring.used = - mvdev->mdev->aper.va + + (void __force *)mvdev->mdev->aper.va + le64_to_cpu(vqconfig[i].used_address); } @@ -378,7 +378,7 @@ int mic_virtio_config_change(struct mic_vdev *mvdev, void __user *argp) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); - int ret = 0, retry = 100, i; + int ret = 0, retry, i; struct mic_bootparam *bootparam = mvdev->mdev->dp; s8 db = bootparam->h2c_config_db; @@ -401,7 +401,7 @@ int mic_virtio_config_change(struct mic_vdev *mvdev, mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED; mvdev->mdev->ops->send_intr(mvdev->mdev, db); - for (i = retry; i--;) { + for (retry = 100; retry--;) { ret = wait_event_timeout(wake, mvdev->dc->guest_ack, msecs_to_jiffies(100)); if (ret) @@ -467,7 +467,7 @@ static int mic_copy_dp_entry(struct mic_vdev *mvdev, } /* Find the first free device page entry */ - for (i = mic_aligned_size(struct mic_bootparam); + for (i = sizeof(struct mic_bootparam); i < MIC_DP_SIZE - mic_total_desc_size(dd_config); i += mic_total_desc_size(devp)) { devp = mdev->dp + i; @@ -525,6 +525,7 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, char irqname[10]; struct mic_bootparam *bootparam = mdev->dp; u16 num; + dma_addr_t vr_addr; mutex_lock(&mdev->mic_mutex); @@ -559,17 +560,16 @@ int mic_virtio_add_device(struct mic_vdev *mvdev, } vr->len = vr_size; vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); - vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; - vqconfig[i].address = mic_map_single(mdev, - vr->va, vr_size); - if (mic_map_error(vqconfig[i].address)) { + vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i); + vr_addr = mic_map_single(mdev, vr->va, vr_size); + if (mic_map_error(vr_addr)) { free_pages((unsigned long)vr->va, get_order(vr_size)); ret = -ENOMEM; dev_err(mic_dev(mvdev), "%s %d err %d\n", __func__, __LINE__, ret); goto err; } - vqconfig[i].address = cpu_to_le64(vqconfig[i].address); + vqconfig[i].address = cpu_to_le64(vr_addr); vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN); ret = vringh_init_kern(&mvr->vrh, @@ -639,7 +639,7 @@ void mic_virtio_del_device(struct mic_vdev *mvdev) struct mic_vdev *tmp_mvdev; struct mic_device *mdev = mvdev->mdev; DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); - int i, ret, retry = 100; + int i, ret, retry; struct mic_vqconfig *vqconfig; struct mic_bootparam *bootparam = mdev->dp; s8 db; @@ -652,16 +652,16 @@ void mic_virtio_del_device(struct mic_vdev *mvdev) "Requesting hot remove id %d\n", mvdev->virtio_id); mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE; mdev->ops->send_intr(mdev, db); - for (i = retry; i--;) { + for (retry = 100; retry--;) { ret = wait_event_timeout(wake, mvdev->dc->guest_ack, msecs_to_jiffies(100)); if (ret) break; } dev_dbg(mdev->sdev->parent, - "Device id %d config_change %d guest_ack %d\n", + "Device id %d config_change %d guest_ack %d retry %d\n", mvdev->virtio_id, mvdev->dc->config_change, - mvdev->dc->guest_ack); + mvdev->dc->guest_ack, retry); mvdev->dc->config_change = 0; mvdev->dc->guest_ack = 0; skip_hot_remove: |