[POWERPC] iSeries: Localise and constify some iSeries data

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

6 files changed, 11 insertions, 15 deletions

diff --git a/arch/powerpc/platforms/iseries/ipl_parms.h b/arch/powerpc/platforms/iseries/ipl_parms.h
index 77c135ddbf1b..83e4ca42fc57 100644
--- a/arch/powerpc/platforms/iseries/ipl_parms.h
+++ b/arch/powerpc/platforms/iseries/ipl_parms.h
@@ -65,6 +65,4 @@ struct ItIplParmsReal {
         u64     xRsvd13;                // Reserved                     x38-x3F
 };
 
-extern struct ItIplParmsReal    xItIplParmsReal;
-
 #endif /* _ISERIES_IPL_PARMS_H */
diff --git a/arch/powerpc/platforms/iseries/lpardata.c b/arch/powerpc/platforms/iseries/lpardata.c
index 2331d97e49f3..98bd2d37038a 100644
--- a/arch/powerpc/platforms/iseries/lpardata.c
+++ b/arch/powerpc/platforms/iseries/lpardata.c
@@ -31,7 +31,7 @@
 /* The HvReleaseData is the root of the information shared between
  * the hypervisor and Linux.
  */
-struct HvReleaseData hvReleaseData = {
+const struct HvReleaseData hvReleaseData = {
         .xDesc = 0xc8a5d9c4,    /* "HvRD" ebcdic */
         .xSize = sizeof(struct HvReleaseData),
         .xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas),
@@ -186,7 +186,7 @@ struct ItLpNaca itLpNaca = {
 };
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
-struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
+static struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
 
 /* May be filled in by the hypervisor so cannot end up in the BSS */
 struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
@@ -209,14 +209,14 @@ u64    xMsVpd[3400] __attribute__((__section__(".data")));
 
 /* Space for Recovery Log Buffer */
 /* May be filled in by the hypervisor so cannot end up in the BSS */
-u64    xRecoveryLogBuffer[32] __attribute__((__section__(".data")));
+static u64    xRecoveryLogBuffer[32] __attribute__((__section__(".data")));
 
-struct SpCommArea xSpCommArea = {
+static const struct SpCommArea xSpCommArea = {
         .xDesc = 0xE2D7C3C2,
         .xFormat = 1,
 };
 
-static struct ItLpRegSave iseries_reg_save[] = {
+static const struct ItLpRegSave iseries_reg_save[] = {
         [0 ... (NR_CPUS-1)] = {
                 .xDesc = 0xd397d9e2,    /* "LpRS" */
                 .xSize = sizeof(struct ItLpRegSave),
@@ -229,7 +229,7 @@ static struct ItLpRegSave iseries_reg_save[] = {
         .reg_save_ptr = &iseries_reg_save[number],                      \
 }
 
-struct alpaca alpaca[] = {
+const struct alpaca alpaca[] = {
         ALPACA_INIT( 0),
 #if NR_CPUS > 1
         ALPACA_INIT( 1), ALPACA_INIT( 2), ALPACA_INIT( 3),
@@ -265,7 +265,7 @@ struct alpaca alpaca[] = {
  * the Naca via the HvReleaseData area.  The HvReleaseData has the
  * offset into the Naca of the pointer to the ItVpdAreas.
  */
-struct ItVpdAreas itVpdAreas = {
+const struct ItVpdAreas itVpdAreas = {
         .xSlicDesc = 0xc9a3e5c1,                /* "ItVA" */
         .xSlicSize = sizeof(struct ItVpdAreas),
         .xSlicVpdEntries = ItVpdMaxEntries,     /* # VPD array entries */
diff --git a/arch/powerpc/platforms/iseries/naca.h b/arch/powerpc/platforms/iseries/naca.h
index ab2372eb8d2e..f01708e12862 100644
--- a/arch/powerpc/platforms/iseries/naca.h
+++ b/arch/powerpc/platforms/iseries/naca.h
@@ -14,7 +14,7 @@
 
 struct naca_struct {
         /* Kernel only data - undefined for user space */
-        void *xItVpdAreas;              /* VPD Data                  0x00 */
+        const void *xItVpdAreas;        /* VPD Data                  0x00 */
         void *xRamDisk;                 /* iSeries ramdisk           0x08 */
         u64   xRamDiskSize;             /* In pages                  0x10 */
 };
diff --git a/arch/powerpc/platforms/iseries/release_data.h b/arch/powerpc/platforms/iseries/release_data.h
index 66189fd2e32d..6ad7d843e8fc 100644
--- a/arch/powerpc/platforms/iseries/release_data.h
+++ b/arch/powerpc/platforms/iseries/release_data.h
@@ -58,6 +58,6 @@ struct HvReleaseData {
         char    xRsvd3[20];     /* Reserved                     x2C-x3F */
 };
 
-extern struct HvReleaseData     hvReleaseData;
+extern const struct HvReleaseData       hvReleaseData;
 
 #endif /* _ISERIES_RELEASE_DATA_H */
diff --git a/arch/powerpc/platforms/iseries/spcomm_area.h b/arch/powerpc/platforms/iseries/spcomm_area.h
index 6e3b685115c9..598b7c14573a 100644
--- a/arch/powerpc/platforms/iseries/spcomm_area.h
+++ b/arch/powerpc/platforms/iseries/spcomm_area.h
@@ -31,6 +31,4 @@ struct SpCommArea {
         u8      xRsvd2[80];             // Reserved                             030-07F
 };
 
-extern struct SpCommArea xSpCommArea;
-
 #endif /* _ISERIES_SPCOMM_AREA_H */
diff --git a/arch/powerpc/platforms/iseries/vpd_areas.h b/arch/powerpc/platforms/iseries/vpd_areas.h
index 601e6dd860ed..feb001f3a5fe 100644
--- a/arch/powerpc/platforms/iseries/vpd_areas.h
+++ b/arch/powerpc/platforms/iseries/vpd_areas.h
@@ -80,9 +80,9 @@ struct ItVpdAreas {
         u32     xPlicDmaLens[ItDmaMaxEntries];// Array of DMA lengths   080-0A7
         u32     xPlicDmaToks[ItDmaMaxEntries];// Array of DMA tokens    0A8-0CF
         u32     xSlicVpdLens[ItVpdMaxEntries];// Array of VPD lengths   0D0-12F
-        void    *xSlicVpdAdrs[ItVpdMaxEntries];// Array of VPD buffers  130-1EF
+        const void *xSlicVpdAdrs[ItVpdMaxEntries];// Array of VPD buffers 130-1EF
 };
 
-extern struct ItVpdAreas        itVpdAreas;
+extern const struct ItVpdAreas  itVpdAreas;
 
 #endif /* _ISERIES_VPD_AREAS_H */