Staging: hv: fix coding style issues in Hv.c

Lots of cleanups.

Note, the use of volatile still needs to be resolved, and
possibly the #ifdef could be done a bit "better".

Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/Hv.c

@@ -1,5 +1,4 @@
 /*
- *
  * Copyright (c) 2009, Microsoft Corporation.
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -20,7 +19,6 @@
  *   Hank Janssen  <hjanssen@microsoft.com>
  *
  */
-
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
@@ -28,8 +26,6 @@
 #include "logging.h"
 #include "VmbusPrivate.h"
 
-/* Globals */
-
 /* The one and only */
 struct hv_context gHvContext = {
 	.SynICInitialized	= false,
@@ -38,198 +34,160 @@ struct hv_context gHvContext = {
 	.SignalEventBuffer	= NULL,
 };
 
-
-/*++
-
-Name:
-	HvQueryHypervisorPresence()
-
-Description:
-	Query the cpuid for presense of windows hypervisor
-
---*/
-static int
-HvQueryHypervisorPresence (
-    void
-    )
+/**
+ * HvQueryHypervisorPresence - Query the cpuid for presense of windows hypervisor
+ */
+static int HvQueryHypervisorPresence(void)
 {
-    unsigned int eax;
-    unsigned int ebx;
-    unsigned int ecx;
-    unsigned int edx;
-    unsigned int op;
-
-    eax = 0;
-    ebx = 0;
-    ecx = 0;
-    edx = 0;
-    op = HvCpuIdFunctionVersionAndFeatures;
-    cpuid(op, &eax, &ebx, &ecx, &edx);
-
-	return (ecx & HV_PRESENT_BIT);
-}
-
-
-/*++
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+	unsigned int op;
 
-Name:
-	HvQueryHypervisorInfo()
-
-Description:
-	Get version info of the windows hypervisor
-
---*/
-static int
-HvQueryHypervisorInfo (
-    void
-    )
-{
-    unsigned int eax;
-    unsigned int ebx;
-    unsigned int ecx;
-    unsigned int edx;
-    unsigned int maxLeaf;
-    unsigned int op;
-
-    /*
-     * Its assumed that this is called after confirming that Viridian
-     * is present. Query id and revision.
-     */
-
-
-    eax = 0;
-    ebx = 0;
-    ecx = 0;
-    edx = 0;
-    op = HvCpuIdFunctionHvVendorAndMaxFunction;
-    cpuid(op, &eax, &ebx, &ecx, &edx);
-
-    DPRINT_INFO(VMBUS, "Vendor ID: %c%c%c%c%c%c%c%c%c%c%c%c",
-	   (ebx & 0xFF),
-	   ((ebx >> 8) & 0xFF),
-	   ((ebx >> 16) & 0xFF),
-	   ((ebx >> 24) & 0xFF),
-	   (ecx & 0xFF),
-	   ((ecx >> 8) & 0xFF),
-	   ((ecx >> 16) & 0xFF),
-	   ((ecx >> 24) & 0xFF),
-	   (edx & 0xFF),
-	   ((edx >> 8) & 0xFF),
-	   ((edx >> 16) & 0xFF),
-	   ((edx >> 24) & 0xFF));
-
-    maxLeaf = eax;
-    eax = 0;
-    ebx = 0;
-    ecx = 0;
-    edx = 0;
-    op = HvCpuIdFunctionHvInterface;
-    cpuid(op, &eax, &ebx, &ecx, &edx);
-
-    DPRINT_INFO(VMBUS, "Interface ID: %c%c%c%c",
-	   (eax & 0xFF),
-	   ((eax >> 8) & 0xFF),
-	   ((eax >> 16) & 0xFF),
-	   ((eax >> 24) & 0xFF));
-
-	 if (maxLeaf >= HvCpuIdFunctionMsHvVersion) {
 	eax = 0;
 	ebx = 0;
 	ecx = 0;
 	edx = 0;
-	op = HvCpuIdFunctionMsHvVersion;
+	op = HvCpuIdFunctionVersionAndFeatures;
 	cpuid(op, &eax, &ebx, &ecx, &edx);
-	DPRINT_INFO(VMBUS, "OS Build:%d-%d.%d-%d-%d.%d",
-	       eax,
-	       ebx >> 16,
-	       ebx & 0xFFFF,
-	       ecx,
-	       edx >> 24,
-	       edx & 0xFFFFFF);
-    }
-    return maxLeaf;
+
+	return ecx & HV_PRESENT_BIT;
 }
 
+/**
+ * HvQueryHypervisorInfo - Get version info of the windows hypervisor
+ */
+static int HvQueryHypervisorInfo(void)
+{
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+	unsigned int maxLeaf;
+	unsigned int op;
 
-/*++
+	/*
+	* Its assumed that this is called after confirming that Viridian
+	* is present. Query id and revision.
+	*/
+	eax = 0;
+	ebx = 0;
+	ecx = 0;
+	edx = 0;
+	op = HvCpuIdFunctionHvVendorAndMaxFunction;
+	cpuid(op, &eax, &ebx, &ecx, &edx);
 
-Name:
-	HvDoHypercall()
+	DPRINT_INFO(VMBUS, "Vendor ID: %c%c%c%c%c%c%c%c%c%c%c%c",
+		    (ebx & 0xFF),
+		    ((ebx >> 8) & 0xFF),
+		    ((ebx >> 16) & 0xFF),
+		    ((ebx >> 24) & 0xFF),
+		    (ecx & 0xFF),
+		    ((ecx >> 8) & 0xFF),
+		    ((ecx >> 16) & 0xFF),
+		    ((ecx >> 24) & 0xFF),
+		    (edx & 0xFF),
+		    ((edx >> 8) & 0xFF),
+		    ((edx >> 16) & 0xFF),
+		    ((edx >> 24) & 0xFF));
+
+	maxLeaf = eax;
+	eax = 0;
+	ebx = 0;
+	ecx = 0;
+	edx = 0;
+	op = HvCpuIdFunctionHvInterface;
+	cpuid(op, &eax, &ebx, &ecx, &edx);
 
-Description:
-	Invoke the specified hypercall
+	DPRINT_INFO(VMBUS, "Interface ID: %c%c%c%c",
+		    (eax & 0xFF),
+		    ((eax >> 8) & 0xFF),
+		    ((eax >> 16) & 0xFF),
+		    ((eax >> 24) & 0xFF));
+
+	if (maxLeaf >= HvCpuIdFunctionMsHvVersion) {
+		eax = 0;
+		ebx = 0;
+		ecx = 0;
+		edx = 0;
+		op = HvCpuIdFunctionMsHvVersion;
+		cpuid(op, &eax, &ebx, &ecx, &edx);
+		DPRINT_INFO(VMBUS, "OS Build:%d-%d.%d-%d-%d.%d",\
+			    eax,
+			    ebx >> 16,
+			    ebx & 0xFFFF,
+			    ecx,
+			    edx >> 24,
+			    edx & 0xFFFFFF);
+	}
+	return maxLeaf;
+}
 
---*/
-static u64
-HvDoHypercall (
-    u64  Control,
-    void*   Input,
-    void*   Output
-    )
+/**
+ * HvDoHypercall - Invoke the specified hypercall
+ */
+static u64 HvDoHypercall(u64 Control, void *Input, void *Output)
 {
 #ifdef CONFIG_X86_64
-    u64 hvStatus=0;
-	u64 inputAddress = (Input)? virt_to_phys(Input) : 0;
-	u64 outputAddress = (Output)? virt_to_phys(Output) : 0;
-    volatile void* hypercallPage = gHvContext.HypercallPage;
+	u64 hvStatus = 0;
+	u64 inputAddress = (Input) ? virt_to_phys(Input) : 0;
+	u64 outputAddress = (Output) ? virt_to_phys(Output) : 0;
+	volatile void *hypercallPage = gHvContext.HypercallPage;
 
-    DPRINT_DBG(VMBUS, "Hypercall <control %llx input phys %llx virt %p output phys %llx virt %p hypercall %p>",
-		Control,
-		inputAddress,
-		Input,
-		outputAddress,
-		Output,
-		hypercallPage);
+	DPRINT_DBG(VMBUS, "Hypercall <control %llx input phys %llx virt %p "
+		   "output phys %llx virt %p hypercall %p>",
+		   Control, inputAddress, Input,
+		   outputAddress, Output, hypercallPage);
 
-	__asm__ __volatile__ ("mov %0, %%r8" : : "r" (outputAddress):  "r8");
-	__asm__ __volatile__ ("call *%3" : "=a"(hvStatus): "c" (Control), "d" (inputAddress), "m" (hypercallPage));
+	__asm__ __volatile__("mov %0, %%r8" : : "r" (outputAddress) : "r8");
+	__asm__ __volatile__("call *%3" : "=a" (hvStatus) :
+			     "c" (Control), "d" (inputAddress),
+			     "m" (hypercallPage));
 
-    DPRINT_DBG(VMBUS, "Hypercall <return %llx>",  hvStatus);
+	DPRINT_DBG(VMBUS, "Hypercall <return %llx>",  hvStatus);
 
-    return hvStatus;
+	return hvStatus;
 
 #else
 
-    u32 controlHi = Control >> 32;
-    u32 controlLo = Control & 0xFFFFFFFF;
-    u32 hvStatusHi = 1;
-    u32 hvStatusLo = 1;
-    u64 inputAddress = (Input) ? virt_to_phys(Input) : 0;
-    u32 inputAddressHi = inputAddress >> 32;
-    u32 inputAddressLo = inputAddress & 0xFFFFFFFF;
+	u32 controlHi = Control >> 32;
+	u32 controlLo = Control & 0xFFFFFFFF;
+	u32 hvStatusHi = 1;
+	u32 hvStatusLo = 1;
+	u64 inputAddress = (Input) ? virt_to_phys(Input) : 0;
+	u32 inputAddressHi = inputAddress >> 32;
+	u32 inputAddressLo = inputAddress & 0xFFFFFFFF;
 	u64 outputAddress = (Output) ? virt_to_phys(Output) : 0;
-    u32 outputAddressHi = outputAddress >> 32;
-    u32 outputAddressLo = outputAddress & 0xFFFFFFFF;
-    volatile void* hypercallPage = gHvContext.HypercallPage;
-
-    DPRINT_DBG(VMBUS, "Hypercall <control %llx input %p output %p>",
-		Control,
-		Input,
-		Output);
+	u32 outputAddressHi = outputAddress >> 32;
+	u32 outputAddressLo = outputAddress & 0xFFFFFFFF;
+	volatile void *hypercallPage = gHvContext.HypercallPage;
 
-	__asm__ __volatile__ ("call *%8" : "=d"(hvStatusHi), "=a"(hvStatusLo) : "d" (controlHi), "a" (controlLo), "b" (inputAddressHi), "c" (inputAddressLo), "D"(outputAddressHi), "S"(outputAddressLo), "m" (hypercallPage));
+	DPRINT_DBG(VMBUS, "Hypercall <control %llx input %p output %p>",
+		   Control, Input, Output);
 
+	__asm__ __volatile__ ("call *%8" : "=d"(hvStatusHi),
+			      "=a"(hvStatusLo) : "d" (controlHi),
+			      "a" (controlLo), "b" (inputAddressHi),
+			      "c" (inputAddressLo), "D"(outputAddressHi),
+			      "S"(outputAddressLo), "m" (hypercallPage));
 
-    DPRINT_DBG(VMBUS, "Hypercall <return %llx>",  hvStatusLo | ((u64)hvStatusHi << 32));
+	DPRINT_DBG(VMBUS, "Hypercall <return %llx>",
+		   hvStatusLo | ((u64)hvStatusHi << 32));
 
-    return (hvStatusLo | ((u64)hvStatusHi << 32));
-#endif /* x86_64 */
+	return hvStatusLo | ((u64)hvStatusHi << 32);
+#endif /* !x86_64 */
 }
 
-/*++
-
-Name:
-	HvInit()
-
-Description:
-	Main initialization routine. This routine must be called
-	before any other routines in here are called
-
---*/
-int HvInit (void)
+/**
+ * HvInit - Main initialization routine.
+ *
+ * This routine must be called before any other routines in here are called
+ */
+int HvInit(void)
 {
-	int ret=0;
-    int maxLeaf;
+	int ret = 0;
+	int maxLeaf;
 	union hv_x64_msr_hypercall_contents hypercallMsr;
 	void *virtAddr = NULL;
 
@@ -238,60 +196,59 @@ int HvInit (void)
 	memset(gHvContext.synICEventPage, 0, sizeof(void *) * MAX_NUM_CPUS);
 	memset(gHvContext.synICMessagePage, 0, sizeof(void *) * MAX_NUM_CPUS);
 
-	if (!HvQueryHypervisorPresence())
-	{
+	if (!HvQueryHypervisorPresence()) {
 		DPRINT_ERR(VMBUS, "No Windows hypervisor detected!!");
 		goto Cleanup;
 	}
 
-	DPRINT_INFO(VMBUS, "Windows hypervisor detected! Retrieving more info...");
+	DPRINT_INFO(VMBUS,
+		    "Windows hypervisor detected! Retrieving more info...");
 
-    maxLeaf = HvQueryHypervisorInfo();
-    /* HvQueryHypervisorFeatures(maxLeaf); */
+	maxLeaf = HvQueryHypervisorInfo();
+	/* HvQueryHypervisorFeatures(maxLeaf); */
 
-	/* Determine if we are running on xenlinux (ie x2v shim) or native linux */
+	/*
+	 * Determine if we are running on xenlinux (ie x2v shim) or native
+	 * linux
+	 */
 	rdmsrl(HV_X64_MSR_GUEST_OS_ID, gHvContext.GuestId);
-	if (gHvContext.GuestId == 0)
-	{
+	if (gHvContext.GuestId == 0) {
 		/* Write our OS info */
 		wrmsrl(HV_X64_MSR_GUEST_OS_ID, HV_LINUX_GUEST_ID);
-
 		gHvContext.GuestId = HV_LINUX_GUEST_ID;
 	}
 
 	/* See if the hypercall page is already set */
 	rdmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
-	if (gHvContext.GuestId == HV_LINUX_GUEST_ID)
-	{
+	if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
 		/* Allocate the hypercall page memory */
 		/* virtAddr = osd_PageAlloc(1); */
 		virtAddr = osd_VirtualAllocExec(PAGE_SIZE);
 
-		if (!virtAddr)
-		{
-			DPRINT_ERR(VMBUS, "unable to allocate hypercall page!!");
+		if (!virtAddr) {
+			DPRINT_ERR(VMBUS,
+				   "unable to allocate hypercall page!!");
 			goto Cleanup;
 		}
 
 		hypercallMsr.Enable = 1;
-		/* hypercallMsr.GuestPhysicalAddress = virt_to_phys(virtAddr) >> PAGE_SHIFT; */
+		/* hypercallMsr.GuestPhysicalAddress =
+		 * 		virt_to_phys(virtAddr) >> PAGE_SHIFT; */
 		hypercallMsr.GuestPhysicalAddress = vmalloc_to_pfn(virtAddr);
 		wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
 
-	/* Confirm that hypercall page did get setup. */
+		/* Confirm that hypercall page did get setup. */
 		hypercallMsr.AsUINT64 = 0;
 		rdmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
-		if (!hypercallMsr.Enable)
-		{
+		if (!hypercallMsr.Enable) {
 			DPRINT_ERR(VMBUS, "unable to set hypercall page!!");
 			goto Cleanup;
 		}
 
 		gHvContext.HypercallPage = virtAddr;
-	}
-	else
-	{
-		DPRINT_ERR(VMBUS, "Unknown guest id (0x%llx)!!", gHvContext.GuestId);
+	} else {
+		DPRINT_ERR(VMBUS, "Unknown guest id (0x%llx)!!",
+				gHvContext.GuestId);
 		goto Cleanup;
 	}
 
@@ -300,29 +257,31 @@ int HvInit (void)
 		    (u64)hypercallMsr.GuestPhysicalAddress << PAGE_SHIFT);
 
 	/* Setup the global signal event param for the signal event hypercall */
-	gHvContext.SignalEventBuffer = kmalloc(sizeof(struct hv_input_signal_event_buffer), GFP_KERNEL);
+	gHvContext.SignalEventBuffer =
+			kmalloc(sizeof(struct hv_input_signal_event_buffer),
+				GFP_KERNEL);
 	if (!gHvContext.SignalEventBuffer)
-	{
 		goto Cleanup;
-	}
 
-	gHvContext.SignalEventParam = (struct hv_input_signal_event *)(ALIGN_UP((unsigned long)gHvContext.SignalEventBuffer, HV_HYPERCALL_PARAM_ALIGN));
+	gHvContext.SignalEventParam =
+		(struct hv_input_signal_event *)
+			(ALIGN_UP((unsigned long)gHvContext.SignalEventBuffer,
+				  HV_HYPERCALL_PARAM_ALIGN));
 	gHvContext.SignalEventParam->ConnectionId.Asu32 = 0;
-	gHvContext.SignalEventParam->ConnectionId.u.Id = VMBUS_EVENT_CONNECTION_ID;
+	gHvContext.SignalEventParam->ConnectionId.u.Id =
+						VMBUS_EVENT_CONNECTION_ID;
 	gHvContext.SignalEventParam->FlagNumber = 0;
 	gHvContext.SignalEventParam->RsvdZ = 0;
 
-    /* DPRINT_DBG(VMBUS, "My id %llu", HvGetCurrentPartitionId()); */
+	/* DPRINT_DBG(VMBUS, "My id %llu", HvGetCurrentPartitionId()); */
 
 	DPRINT_EXIT(VMBUS);
 
-    return ret;
+	return ret;
 
 Cleanup:
-	if (virtAddr)
-	{
-		if (hypercallMsr.Enable)
-		{
+	if (virtAddr) {
+		if (hypercallMsr.Enable) {
 			hypercallMsr.AsUINT64 = 0;
 			wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
 		}
@@ -335,33 +294,25 @@ Cleanup:
 	return ret;
 }
 
-
-/*++
-
-Name:
-	HvCleanup()
-
-Description:
-	Cleanup routine. This routine is called normally during driver unloading or exiting.
-
---*/
-void HvCleanup (void)
+/**
+ * HvCleanup - Cleanup routine.
+ *
+ * This routine is called normally during driver unloading or exiting.
+ */
+void HvCleanup(void)
 {
 	union hv_x64_msr_hypercall_contents hypercallMsr;
 
 	DPRINT_ENTER(VMBUS);
 
-	if (gHvContext.SignalEventBuffer)
-	{
-		kfree(gHvContext.SignalEventBuffer);
+	if (gHvContext.SignalEventBuffer) {
 		gHvContext.SignalEventBuffer = NULL;
 		gHvContext.SignalEventParam = NULL;
+		kfree(gHvContext.SignalEventBuffer);
 	}
 
-	if (gHvContext.GuestId == HV_LINUX_GUEST_ID)
-	{
-		if (gHvContext.HypercallPage)
-		{
+	if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
+		if (gHvContext.HypercallPage) {
 			hypercallMsr.AsUINT64 = 0;
 			wrmsrl(HV_X64_MSR_HYPERCALL, hypercallMsr.AsUINT64);
 			vfree(gHvContext.HypercallPage);
@@ -373,23 +324,17 @@ void HvCleanup (void)
 
 }
 
-
-/*++
-
-Name:
-	HvPostMessage()
-
-Description:
-	Post a message using the hypervisor message IPC. This
-	involves a hypercall.
-
---*/
+/**
+ * HvPostMessage - Post a message using the hypervisor message IPC.
+ *
+ * This involves a hypercall.
+ */
 u16 HvPostMessage(union hv_connection_id connectionId,
 		  enum hv_message_type messageType,
 		  void *payload, size_t payloadSize)
 {
 	struct alignedInput {
-		u64					alignment8;
+		u64 alignment8;
 		struct hv_input_post_message msg;
 	};
 
@@ -398,77 +343,62 @@ u16 HvPostMessage(union hv_connection_id connectionId,
 	unsigned long addr;
 
 	if (payloadSize > HV_MESSAGE_PAYLOAD_BYTE_COUNT)
-	{
 		return -1;
-	}
 
 	addr = (unsigned long)kmalloc(sizeof(struct alignedInput), GFP_ATOMIC);
-
 	if (!addr)
-	{
 		return -1;
-	}
 
-	alignedMsg = (struct hv_input_post_message *)(ALIGN_UP(addr, HV_HYPERCALL_PARAM_ALIGN));
+	alignedMsg = (struct hv_input_post_message *)
+			(ALIGN_UP(addr, HV_HYPERCALL_PARAM_ALIGN));
 
 	alignedMsg->ConnectionId = connectionId;
 	alignedMsg->MessageType = messageType;
 	alignedMsg->PayloadSize = payloadSize;
-	memcpy((void*)alignedMsg->Payload, payload, payloadSize);
+	memcpy((void *)alignedMsg->Payload, payload, payloadSize);
 
 	status = HvDoHypercall(HvCallPostMessage, alignedMsg, NULL) & 0xFFFF;
 
-	kfree((void*)addr);
+	kfree((void *)addr);
 
 	return status;
 }
 
 
-/*++
-
-Name:
-	HvSignalEvent()
-
-Description:
-	Signal an event on the specified connection using the hypervisor event IPC. This
-	involves a hypercall.
-
---*/
+/**
+ * HvSignalEvent - Signal an event on the specified connection using the hypervisor event IPC.
+ *
+ * This involves a hypercall.
+ */
 u16 HvSignalEvent(void)
 {
 	u16 status;
 
-	status = HvDoHypercall(HvCallSignalEvent, gHvContext.SignalEventParam, NULL) & 0xFFFF;
-
+	status = HvDoHypercall(HvCallSignalEvent, gHvContext.SignalEventParam,
+			       NULL) & 0xFFFF;
 	return status;
 }
 
-
-/*++
-
-Name:
-	HvSynicInit()
-
-Description:
-	Initialize the Synthethic Interrupt Controller. If it is already initialized by
-	another entity (ie x2v shim), we need to retrieve the initialized message and event pages.
-	Otherwise, we create and initialize the message and event pages.
-
---*/
-int HvSynicInit (u32 irqVector)
+/**
+ * HvSynicInit - Initialize the Synthethic Interrupt Controller.
+ *
+ * If it is already initialized by another entity (ie x2v shim), we need to
+ * retrieve the initialized message and event pages.  Otherwise, we create and
+ * initialize the message and event pages.
+ */
+int HvSynicInit(u32 irqVector)
 {
-	u64			version;
+	u64 version;
 	union hv_synic_simp simp;
 	union hv_synic_siefp siefp;
 	union hv_synic_sint sharedSint;
 	union hv_synic_scontrol sctrl;
-	u64			guestID;
-	int ret=0;
+	u64 guestID;
+	int ret = 0;
 
 	DPRINT_ENTER(VMBUS);
 
-	if (!gHvContext.HypercallPage)
-	{
+	if (!gHvContext.HypercallPage) {
 		DPRINT_EXIT(VMBUS);
 		return ret;
 	}
@@ -479,68 +409,76 @@ int HvSynicInit (u32 irqVector)
 	DPRINT_INFO(VMBUS, "SynIC version: %llx", version);
 
 	/* TODO: Handle SMP */
-	if (gHvContext.GuestId == HV_XENLINUX_GUEST_ID)
-	{
-		DPRINT_INFO(VMBUS, "Skipping SIMP and SIEFP setup since it is already set.");
+	if (gHvContext.GuestId == HV_XENLINUX_GUEST_ID) {
+		DPRINT_INFO(VMBUS, "Skipping SIMP and SIEFP setup since "
+				"it is already set.");
 
 		rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
 		rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
 
-		DPRINT_DBG(VMBUS, "Simp: %llx, Sifep: %llx", simp.AsUINT64, siefp.AsUINT64);
+		DPRINT_DBG(VMBUS, "Simp: %llx, Sifep: %llx",
+			   simp.AsUINT64, siefp.AsUINT64);
 
-		/* Determine if we are running on xenlinux (ie x2v shim) or native linux */
+		/*
+		 * Determine if we are running on xenlinux (ie x2v shim) or
+		 * native linux
+		 */
 		rdmsrl(HV_X64_MSR_GUEST_OS_ID, guestID);
-		if (guestID == HV_LINUX_GUEST_ID)
-		{
-			gHvContext.synICMessagePage[0] = phys_to_virt(simp.BaseSimpGpa << PAGE_SHIFT);
-			gHvContext.synICEventPage[0] = phys_to_virt(siefp.BaseSiefpGpa << PAGE_SHIFT);
-		}
-		else
-		{
+		if (guestID == HV_LINUX_GUEST_ID) {
+			gHvContext.synICMessagePage[0] =
+				phys_to_virt(simp.BaseSimpGpa << PAGE_SHIFT);
+			gHvContext.synICEventPage[0] =
+				phys_to_virt(siefp.BaseSiefpGpa << PAGE_SHIFT);
+		} else {
 			DPRINT_ERR(VMBUS, "unknown guest id!!");
 			goto Cleanup;
 		}
-		DPRINT_DBG(VMBUS, "MAPPED: Simp: %p, Sifep: %p", gHvContext.synICMessagePage[0], gHvContext.synICEventPage[0]);
-	}
-	else
-	{
+		DPRINT_DBG(VMBUS, "MAPPED: Simp: %p, Sifep: %p",
+			   gHvContext.synICMessagePage[0],
+			   gHvContext.synICEventPage[0]);
+	} else {
 		gHvContext.synICMessagePage[0] = osd_PageAlloc(1);
-		if (gHvContext.synICMessagePage[0] == NULL)
-		{
-			DPRINT_ERR(VMBUS, "unable to allocate SYNIC message page!!");
+		if (gHvContext.synICMessagePage[0] == NULL) {
+			DPRINT_ERR(VMBUS,
+				   "unable to allocate SYNIC message page!!");
 			goto Cleanup;
 		}
 
 		gHvContext.synICEventPage[0] = osd_PageAlloc(1);
-		if (gHvContext.synICEventPage[0] == NULL)
-		{
-			DPRINT_ERR(VMBUS, "unable to allocate SYNIC event page!!");
+		if (gHvContext.synICEventPage[0] == NULL) {
+			DPRINT_ERR(VMBUS,
+				   "unable to allocate SYNIC event page!!");
 			goto Cleanup;
 		}
 
 		/* Setup the Synic's message page */
 		rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
 		simp.SimpEnabled = 1;
-		simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[0]) >> PAGE_SHIFT;
+		simp.BaseSimpGpa = virt_to_phys(gHvContext.synICMessagePage[0])
+					>> PAGE_SHIFT;
 
-		DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx", simp.AsUINT64);
+		DPRINT_DBG(VMBUS, "HV_X64_MSR_SIMP msr set to: %llx",
+				simp.AsUINT64);
 
 		wrmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
 
 		/* Setup the Synic's event page */
 		rdmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
 		siefp.SiefpEnabled = 1;
-		siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[0]) >> PAGE_SHIFT;
+		siefp.BaseSiefpGpa = virt_to_phys(gHvContext.synICEventPage[0])
+					>> PAGE_SHIFT;
 
-		DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx", siefp.AsUINT64);
+		DPRINT_DBG(VMBUS, "HV_X64_MSR_SIEFP msr set to: %llx",
+				siefp.AsUINT64);
 
 		wrmsrl(HV_X64_MSR_SIEFP, siefp.AsUINT64);
 	}
-    /* Setup the interception SINT. */
+
+	/* Setup the interception SINT. */
 	/* wrmsrl((HV_X64_MSR_SINT0 + HV_SYNIC_INTERCEPTION_SINT_INDEX), */
-    /*             interceptionSint.AsUINT64); */
+	/*	  interceptionSint.AsUINT64); */
 
-    /* Setup the shared SINT. */
+	/* Setup the shared SINT. */
 	rdmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, sharedSint.AsUINT64);
 
 	sharedSint.AsUINT64 = 0;
@@ -548,7 +486,8 @@ int HvSynicInit (u32 irqVector)
 	sharedSint.Masked = false;
 	sharedSint.AutoEoi = true;
 
-	DPRINT_DBG(VMBUS, "HV_X64_MSR_SINT1 msr set to: %llx", sharedSint.AsUINT64);
+	DPRINT_DBG(VMBUS, "HV_X64_MSR_SINT1 msr set to: %llx",
+		   sharedSint.AsUINT64);
 
 	wrmsrl(HV_X64_MSR_SINT0 + VMBUS_MESSAGE_SINT, sharedSint.AsUINT64);
 
@@ -567,34 +506,22 @@ int HvSynicInit (u32 irqVector)
 Cleanup:
 	ret = -1;
 
-	if (gHvContext.GuestId == HV_LINUX_GUEST_ID)
-	{
+	if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
 		if (gHvContext.synICEventPage[0])
-		{
-			osd_PageFree(gHvContext.synICEventPage[0],1);
-		}
+			osd_PageFree(gHvContext.synICEventPage[0], 1);
 
 		if (gHvContext.synICMessagePage[0])
-		{
 			osd_PageFree(gHvContext.synICMessagePage[0], 1);
-		}
 	}
 
 	DPRINT_EXIT(VMBUS);
 
 	return ret;
-
 }
 
-/*++
-
-Name:
-	HvSynicCleanup()
-
-Description:
-	Cleanup routine for HvSynicInit().
-
---*/
+/**
+ * HvSynicCleanup - Cleanup routine for HvSynicInit().
+ */
 void HvSynicCleanup(void)
 {
 	union hv_synic_sint sharedSint;
@@ -603,8 +530,7 @@ void HvSynicCleanup(void)
 
 	DPRINT_ENTER(VMBUS);
 
-	if (!gHvContext.SynICInitialized)
-	{
+	if (!gHvContext.SynICInitialized) {
 		DPRINT_EXIT(VMBUS);
 		return;
 	}
@@ -621,8 +547,7 @@ void HvSynicCleanup(void)
 	 * native linux since in xenlinux, we are sharing the
 	 * resources with the x2v shim
 	 */
-	if (gHvContext.GuestId == HV_LINUX_GUEST_ID)
-	{
+	if (gHvContext.GuestId == HV_LINUX_GUEST_ID) {
 		rdmsrl(HV_X64_MSR_SIMP, simp.AsUINT64);
 		simp.SimpEnabled = 0;
 		simp.BaseSimpGpa = 0;
@@ -641,6 +566,3 @@ void HvSynicCleanup(void)
 
 	DPRINT_EXIT(VMBUS);
 }
-
-
-/* eof */