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Subject[PATCH 03/21] Drivers: hv: kvp: move poll_channel() to hyperv_vmbus.h
Date
From: Vitaly Kuznetsov <vkuznets@redhat.com>

Move poll_channel() to hyperv_vmbus.h and make it inline and rename it to hv_poll_channel() so it can be reused
in other hv_util modules.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
drivers/hv/hv_kvp.c | 17 +++--------------
drivers/hv/hyperv_vmbus.h | 12 ++++++++++++
2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index caa467d..939c3e7 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -128,17 +128,6 @@ kvp_work_func(struct work_struct *dummy)
kvp_respond_to_host(NULL, HV_E_FAIL);
}

-static void poll_channel(struct vmbus_channel *channel)
-{
- if (channel->target_cpu != smp_processor_id())
- smp_call_function_single(channel->target_cpu,
- hv_kvp_onchannelcallback,
- channel, true);
- else
- hv_kvp_onchannelcallback(channel);
-}
-
-
static int kvp_handle_handshake(struct hv_kvp_msg *msg)
{
int ret = 1;
@@ -166,8 +155,8 @@ static int kvp_handle_handshake(struct hv_kvp_msg *msg)
pr_info("KVP: user-mode registering done.\n");
kvp_register(dm_reg_value);
kvp_transaction.active = false;
- if (kvp_transaction.kvp_context)
- poll_channel(kvp_transaction.kvp_context);
+ hv_poll_channel(kvp_transaction.kvp_context,
+ hv_kvp_onchannelcallback);
}
return ret;
}
@@ -587,7 +576,7 @@ response_done:

vmbus_sendpacket(channel, recv_buffer, buf_len, req_id,
VM_PKT_DATA_INBAND, 0);
- poll_channel(channel);
+ hv_poll_channel(channel, hv_kvp_onchannelcallback);
}

/*
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index ddcf6c4..2f30456 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -742,5 +742,17 @@ int hv_fcopy_init(struct hv_util_service *);
void hv_fcopy_deinit(void);
void hv_fcopy_onchannelcallback(void *);

+static inline void hv_poll_channel(struct vmbus_channel *channel,
+ void (*cb)(void *))
+{
+ if (!channel)
+ return;
+
+ if (channel->target_cpu != smp_processor_id())
+ smp_call_function_single(channel->target_cpu,
+ cb, channel, true);
+ else
+ cb(channel);
+}

#endif /* _HYPERV_VMBUS_H */
--
1.7.4.1


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