maint: avoid 'const fooPtr' in cpu files

'const fooPtr' is the same as 'foo * const' (the pointer won't
change, but it's contents can).  But in general, if an interface
is trying to be const-correct, it should be using 'const foo *'
(the pointer is to data that can't be changed).

Fix up offenders in src/cpu.

* src/cpu/cpu.h (cpuArchDecode, cpuArchEncode, cpuArchUpdate)
(cpuArchHasFeature, cpuDecode, cpuEncode, cpuUpdate)
(cpuHasFeature): Use intended type.
* src/conf/cpu_conf.h (virCPUDefCopyModel, virCPUDefCopy):
Likewise.
(virCPUDefParseXML): Drop const.
* src/cpu/cpu.c (cpuDecode, cpuEncode, cpuUpdate, cpuHasFeature):
Fix fallout.
* src/cpu/cpu_x86.c (x86ModelFromCPU, x86ModelSubtractCPU)
(x86DecodeCPUData, x86EncodePolicy, x86Encode, x86UpdateCustom)
(x86UpdateHostModel, x86Update, x86HasFeature): Likewise.
* src/cpu/cpu_s390.c (s390Decode): Likewise.
* src/cpu/cpu_arm.c (ArmDecode): Likewise.
* src/cpu/cpu_powerpc.c (ppcModelFromCPU, ppcCompute, ppcDecode)
(ppcUpdate): Likewise.
* src/conf/cpu_conf.c (virCPUDefCopyModel, virCPUDefCopy)
(virCPUDefParseXML): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>

src/conf/cpu_conf.c

@@ -94,7 +94,7 @@ virCPUDefFree(virCPUDefPtr def)
 
 int ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
 virCPUDefCopyModel(virCPUDefPtr dst,
-                   const virCPUDefPtr src,
+                   const virCPUDef *src,
                    bool resetPolicy)
 {
     size_t i;
@@ -126,7 +126,7 @@ virCPUDefCopyModel(virCPUDefPtr dst,
 }
 
 virCPUDefPtr
-virCPUDefCopy(const virCPUDefPtr cpu)
+virCPUDefCopy(const virCPUDef *cpu)
 {
     virCPUDefPtr copy;
     size_t i;
@@ -174,7 +174,7 @@ error:
 }
 
 virCPUDefPtr
-virCPUDefParseXML(const xmlNodePtr node,
+virCPUDefParseXML(xmlNodePtr node,
                   xmlXPathContextPtr ctxt,
                   enum virCPUType mode)
 {

src/conf/cpu_conf.h

@@ -1,7 +1,7 @@
 /*
  * cpu_conf.h: CPU XML handling
  *
- * Copyright (C) 2009-2011 Red Hat, Inc.
+ * Copyright (C) 2009-2011, 2013 Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -131,14 +131,14 @@ virCPUDefFree(virCPUDefPtr def);
 
 int ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
 virCPUDefCopyModel(virCPUDefPtr dst,
-                   const virCPUDefPtr src,
+                   const virCPUDef *src,
                    bool resetPolicy);
 
 virCPUDefPtr
-virCPUDefCopy(const virCPUDefPtr cpu);
+virCPUDefCopy(const virCPUDef *cpu);
 
 virCPUDefPtr
-virCPUDefParseXML(const xmlNodePtr node,
+virCPUDefParseXML(xmlNodePtr node,
                   xmlXPathContextPtr ctxt,
                   enum virCPUType mode);
 

src/cpu/cpu.c

@@ -132,7 +132,7 @@ cpuCompare(virCPUDefPtr host,
 
 int
 cpuDecode(virCPUDefPtr cpu,
-          const virCPUDataPtr data,
+          const virCPUData *data,
           const char **models,
           unsigned int nmodels,
           const char *preferred)
@@ -175,7 +175,7 @@ cpuDecode(virCPUDefPtr cpu,
 
 int
 cpuEncode(virArch arch,
-          const virCPUDefPtr cpu,
+          const virCPUDef *cpu,
           virCPUDataPtr *forced,
           virCPUDataPtr *required,
           virCPUDataPtr *optional,
@@ -402,7 +402,7 @@ cpuBaseline(virCPUDefPtr *cpus,
 
 int
 cpuUpdate(virCPUDefPtr guest,
-          const virCPUDefPtr host)
+          const virCPUDef *host)
 {
     struct cpuArchDriver *driver;
 
@@ -422,7 +422,7 @@ cpuUpdate(virCPUDefPtr guest,
 }
 
 int
-cpuHasFeature(const virCPUDataPtr data,
+cpuHasFeature(const virCPUData *data,
               const char *feature)
 {
     struct cpuArchDriver *driver;

src/cpu/cpu.h

@@ -50,7 +50,7 @@ typedef virCPUCompareResult
 
 typedef int
 (*cpuArchDecode)    (virCPUDefPtr cpu,
-                     const virCPUDataPtr data,
+                     const virCPUData *data,
                      const char **models,
                      unsigned int nmodels,
                      const char *preferred,
@@ -58,7 +58,7 @@ typedef int
 
 typedef int
 (*cpuArchEncode)    (virArch arch,
-                     const virCPUDefPtr cpu,
+                     const virCPUDef *cpu,
                      virCPUDataPtr *forced,
                      virCPUDataPtr *required,
                      virCPUDataPtr *optional,
@@ -87,10 +87,10 @@ typedef virCPUDefPtr
 
 typedef int
 (*cpuArchUpdate)    (virCPUDefPtr guest,
-                     const virCPUDefPtr host);
+                     const virCPUDef *host);
 
 typedef int
-(*cpuArchHasFeature) (const virCPUDataPtr data,
+(*cpuArchHasFeature) (const virCPUData *data,
                       const char *feature);
 
 
@@ -120,14 +120,14 @@ cpuCompare  (virCPUDefPtr host,
 
 extern int
 cpuDecode   (virCPUDefPtr cpu,
-             const virCPUDataPtr data,
+             const virCPUData *data,
              const char **models,
              unsigned int nmodels,
              const char *preferred);
 
 extern int
 cpuEncode   (virArch arch,
-             const virCPUDefPtr cpu,
+             const virCPUDef *cpu,
              virCPUDataPtr *forced,
              virCPUDataPtr *required,
              virCPUDataPtr *optional,
@@ -163,10 +163,10 @@ cpuBaseline (virCPUDefPtr *cpus,
 
 extern int
 cpuUpdate   (virCPUDefPtr guest,
-             const virCPUDefPtr host);
+             const virCPUDef *host);
 
 extern int
-cpuHasFeature(const virCPUDataPtr data,
+cpuHasFeature(const virCPUData *data,
               const char *feature);
 
 

src/cpu/cpu_arm.c

@@ -1,6 +1,7 @@
 /*
  * cpu_arm.c: CPU driver for arm CPUs
  *
+ * Copyright (C) 2013 Red Hat, Inc.
  * Copyright (C) Canonical Ltd. 2012
  *
  * This library is free software; you can redistribute it and/or
@@ -45,7 +46,7 @@ ArmNodeData(virArch arch)
 
 static int
 ArmDecode(virCPUDefPtr cpu ATTRIBUTE_UNUSED,
-          const virCPUDataPtr data ATTRIBUTE_UNUSED,
+          const virCPUData *data ATTRIBUTE_UNUSED,
           const char **models ATTRIBUTE_UNUSED,
           unsigned int nmodels ATTRIBUTE_UNUSED,
           const char *preferred ATTRIBUTE_UNUSED,

src/cpu/cpu_powerpc.c

@@ -1,6 +1,7 @@
 /*
  * cpu_powerpc.c: CPU driver for PowerPC CPUs
  *
+ * Copyright (C) 2013 Red Hat, Inc.
  * Copyright (C) IBM Corporation, 2010
  *
  * This library is free software; you can redistribute it and/or
@@ -144,7 +145,7 @@ ppcVendorFree(struct ppc_vendor *vendor)
 }
 
 static struct ppc_model *
-ppcModelFromCPU(const virCPUDefPtr cpu,
+ppcModelFromCPU(const virCPUDef *cpu,
                 const struct ppc_map *map)
 {
     struct ppc_model *model = NULL;
@@ -345,7 +346,7 @@ ppcMakeCPUData(virArch arch, struct cpuPPCData *data)
 
 static virCPUCompareResult
 ppcCompute(virCPUDefPtr host,
-           const virCPUDefPtr cpu,
+           const virCPUDef *cpu,
            virCPUDataPtr *guestData,
            char **message)
 
@@ -448,7 +449,7 @@ ppcCompare(virCPUDefPtr host,
 
 static int
 ppcDecode(virCPUDefPtr cpu,
-          const virCPUDataPtr data,
+          const virCPUData *data,
           const char **models,
           unsigned int nmodels,
           const char *preferred ATTRIBUTE_UNUSED,
@@ -529,7 +530,7 @@ ppcGuestData(virCPUDefPtr host,
 
 static int
 ppcUpdate(virCPUDefPtr guest,
-          const virCPUDefPtr host)
+          const virCPUDef *host)
 {
     switch ((enum virCPUMode) guest->mode) {
     case VIR_CPU_MODE_HOST_MODEL:

src/cpu/cpu_s390.c

@@ -1,6 +1,7 @@
 /*
  * cpu_s390.c: CPU driver for s390(x) CPUs
  *
+ * Copyright (C) 2013 Red Hat, Inc.
  * Copyright IBM Corp. 2012
  *
  * This library is free software; you can redistribute it and/or
@@ -47,7 +48,7 @@ s390NodeData(virArch arch)
 
 static int
 s390Decode(virCPUDefPtr cpu ATTRIBUTE_UNUSED,
-           const virCPUDataPtr data ATTRIBUTE_UNUSED,
+           const virCPUData *data ATTRIBUTE_UNUSED,
            const char **models ATTRIBUTE_UNUSED,
            unsigned int nmodels ATTRIBUTE_UNUSED,
            const char *preferred ATTRIBUTE_UNUSED,

src/cpu/cpu_x86.c

@@ -814,7 +814,7 @@ x86ModelFind(const struct x86_map *map,
 
 
 static struct x86_model *
-x86ModelFromCPU(const virCPUDefPtr cpu,
+x86ModelFromCPU(const virCPUDef *cpu,
                 const struct x86_map *map,
                 int policy)
 {
@@ -863,7 +863,7 @@ error:
 
 static int
 x86ModelSubtractCPU(struct x86_model *model,
-                    const virCPUDefPtr cpu,
+                    const virCPUDef *cpu,
                     const struct x86_map *map)
 {
     const struct x86_model *cpu_model;
@@ -1457,7 +1457,7 @@ out:
 
 static int
 x86DecodeCPUData(virCPUDefPtr cpu,
-                 const virCPUDataPtr data,
+                 const virCPUData *data,
                  const char **models,
                  unsigned int nmodels,
                  const char *preferred,
@@ -1468,7 +1468,7 @@ x86DecodeCPUData(virCPUDefPtr cpu,
 
 
 static struct cpuX86Data *
-x86EncodePolicy(const virCPUDefPtr cpu,
+x86EncodePolicy(const virCPUDef *cpu,
                 const struct x86_map *map,
                 enum virCPUFeaturePolicy policy)
 {
@@ -1488,7 +1488,7 @@ x86EncodePolicy(const virCPUDefPtr cpu,
 
 static int
 x86Encode(virArch arch,
-          const virCPUDefPtr cpu,
+          const virCPUDef *cpu,
           virCPUDataPtr *forced,
           virCPUDataPtr *required,
           virCPUDataPtr *optional,
@@ -1815,7 +1815,7 @@ error:
 
 static int
 x86UpdateCustom(virCPUDefPtr guest,
-                const virCPUDefPtr host)
+                const virCPUDef *host)
 {
     int ret = -1;
     size_t i;
@@ -1862,7 +1862,7 @@ cleanup:
 
 static int
 x86UpdateHostModel(virCPUDefPtr guest,
-                   const virCPUDefPtr host)
+                   const virCPUDef *host)
 {
     virCPUDefPtr oldguest;
     size_t i;
@@ -1896,7 +1896,7 @@ x86UpdateHostModel(virCPUDefPtr guest,
 
 static int
 x86Update(virCPUDefPtr guest,
-          const virCPUDefPtr host)
+          const virCPUDef *host)
 {
     switch ((enum virCPUMode) guest->mode) {
     case VIR_CPU_MODE_CUSTOM:
@@ -1919,7 +1919,7 @@ x86Update(virCPUDefPtr guest,
     return -1;
 }
 
-static int x86HasFeature(const virCPUDataPtr data,
+static int x86HasFeature(const virCPUData *data,
                          const char *name)
 {
     struct x86_map *map;