diff options
Diffstat (limited to 'drivers/misc/vmw_vmci/vmci_queue_pair.c')
| -rw-r--r-- | drivers/misc/vmw_vmci/vmci_queue_pair.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c index 8f2de1893245..844264e1b88c 100644 --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c @@ -324,7 +324,7 @@ static void *qp_alloc_queue(u64 size, u32 flags) /* * Copies from a given buffer or iovector to a VMCI Queue. Uses - * kmap()/kunmap() to dynamically map/unmap required portions of the queue + * kmap_local_page() to dynamically map required portions of the queue * by traversing the offset -> page translation structure for the queue. * Assumes that offset + size does not wrap around in the queue. */ @@ -345,7 +345,7 @@ static int qp_memcpy_to_queue_iter(struct vmci_queue *queue, size_t to_copy; if (kernel_if->host) - va = kmap(kernel_if->u.h.page[page_index]); + va = kmap_local_page(kernel_if->u.h.page[page_index]); else va = kernel_if->u.g.vas[page_index + 1]; /* Skip header. */ @@ -359,12 +359,12 @@ static int qp_memcpy_to_queue_iter(struct vmci_queue *queue, if (!copy_from_iter_full((u8 *)va + page_offset, to_copy, from)) { if (kernel_if->host) - kunmap(kernel_if->u.h.page[page_index]); + kunmap_local(va); return VMCI_ERROR_INVALID_ARGS; } bytes_copied += to_copy; if (kernel_if->host) - kunmap(kernel_if->u.h.page[page_index]); + kunmap_local(va); } return VMCI_SUCCESS; @@ -372,7 +372,7 @@ static int qp_memcpy_to_queue_iter(struct vmci_queue *queue, /* * Copies to a given buffer or iovector from a VMCI Queue. Uses - * kmap()/kunmap() to dynamically map/unmap required portions of the queue + * kmap_local_page() to dynamically map required portions of the queue * by traversing the offset -> page translation structure for the queue. * Assumes that offset + size does not wrap around in the queue. */ @@ -393,7 +393,7 @@ static int qp_memcpy_from_queue_iter(struct iov_iter *to, int err; if (kernel_if->host) - va = kmap(kernel_if->u.h.page[page_index]); + va = kmap_local_page(kernel_if->u.h.page[page_index]); else va = kernel_if->u.g.vas[page_index + 1]; /* Skip header. */ @@ -407,12 +407,12 @@ static int qp_memcpy_from_queue_iter(struct iov_iter *to, err = copy_to_iter((u8 *)va + page_offset, to_copy, to); if (err != to_copy) { if (kernel_if->host) - kunmap(kernel_if->u.h.page[page_index]); + kunmap_local(va); return VMCI_ERROR_INVALID_ARGS; } bytes_copied += to_copy; if (kernel_if->host) - kunmap(kernel_if->u.h.page[page_index]); + kunmap_local(va); } return VMCI_SUCCESS; @@ -854,6 +854,7 @@ static int qp_notify_peer_local(bool attach, struct vmci_handle handle) u32 context_id = vmci_get_context_id(); struct vmci_event_qp ev; + memset(&ev, 0, sizeof(ev)); ev.msg.hdr.dst = vmci_make_handle(context_id, VMCI_EVENT_HANDLER); ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID, VMCI_CONTEXT_RESOURCE_ID); @@ -1467,6 +1468,7 @@ static int qp_notify_peer(bool attach, * kernel. */ + memset(&ev, 0, sizeof(ev)); ev.msg.hdr.dst = vmci_make_handle(peer_id, VMCI_EVENT_HANDLER); ev.msg.hdr.src = vmci_make_handle(VMCI_HYPERVISOR_CONTEXT_ID, VMCI_CONTEXT_RESOURCE_ID); |