12 files changed, 29 insertions, 13 deletions

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 1060155d84c3..19ad5c6b1818 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -617,6 +617,12 @@ _GLOBAL(enter_rtas)
         mfsrr1  r10
         std     r10,_SRR1(r1)
 
+        /* Temporary workaround to clear CR until RTAS can be modified to
+         * ignore all bits.
+         */
+        li      r0,0
+        mtcr    r0
+
         /* There is no way it is acceptable to get here with interrupts enabled,
          * check it with the asm equivalent of WARN_ON
          */
diff --git a/arch/powerpc/kernel/firmware.c b/arch/powerpc/kernel/firmware.c
index 4d37a3cb80f6..0bfe9061720a 100644
--- a/arch/powerpc/kernel/firmware.c
+++ b/arch/powerpc/kernel/firmware.c
@@ -14,7 +14,9 @@
  */
 
 #include <linux/config.h>
+#include <linux/module.h>
 
 #include <asm/firmware.h>
 
-unsigned long ppc64_firmware_features;
+unsigned long powerpc_firmware_features;
+EXPORT_SYMBOL_GPL(powerpc_firmware_features);
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index ba92bab7cc2c..4c4449be81ce 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -78,6 +78,7 @@ int global_phb_number;		/* Global phb counter */
 
 /* Cached ISA bridge dev. */
 struct pci_dev *ppc64_isabridge_dev = NULL;
+EXPORT_SYMBOL_GPL(ppc64_isabridge_dev);
 
 static void fixup_broken_pcnet32(struct pci_dev* dev)
 {
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c6e81bbd615c..706090c99f47 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -770,7 +770,7 @@ out:
         return error;
 }
 
-static int validate_sp(unsigned long sp, struct task_struct *p,
+int validate_sp(unsigned long sp, struct task_struct *p,
                        unsigned long nbytes)
 {
         unsigned long stack_page = (unsigned long)task_stack_page(p);
@@ -808,6 +808,8 @@ static int validate_sp(unsigned long sp, struct task_struct *p,
 #define FRAME_MARKER    2
 #endif
 
+EXPORT_SYMBOL(validate_sp);
+
 unsigned long get_wchan(struct task_struct *p)
 {
         unsigned long ip, sp;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 82ec2f3f6713..27f65b95184d 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -212,7 +212,7 @@ static inline void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs
         /* Default to using normal stack */
         newsp = regs->gpr[1];
 
-        if (ka->sa.sa_flags & SA_ONSTACK) {
+        if ((ka->sa.sa_flags & SA_ONSTACK) && current->sas_ss_size) {
                 if (! on_sig_stack(regs->gpr[1]))
                         newsp = (current->sas_ss_sp + current->sas_ss_size);
         }
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 0f0c3a9ae2e5..aca2f09cd842 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -65,11 +65,11 @@ static int __init smt_setup(void)
         unsigned int cpu;
 
         if (!cpu_has_feature(CPU_FTR_SMT))
-                return 1;
+                return -ENODEV;
 
         options = find_path_device("/options");
         if (!options)
-                return 1;
+                return -ENODEV;
 
         val = (unsigned int *)get_property(options, "ibm,smt-snooze-delay",
                                            NULL);
@@ -78,7 +78,7 @@ static int __init smt_setup(void)
                         per_cpu(smt_snooze_delay, cpu) = *val;
         }
 
-        return 1;
+        return 0;
 }
 __initcall(smt_setup);
 
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index dc06305eecf5..61e70d35d808 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -442,7 +442,7 @@ static struct file_system_type spufs_type = {
         .kill_sb = kill_litter_super,
 };
 
-static int spufs_init(void)
+static int __init spufs_init(void)
 {
         int ret;
         ret = -ENOMEM;
@@ -472,7 +472,7 @@ out:
 }
 module_init(spufs_init);
 
-static void spufs_exit(void)
+static void __exit spufs_exit(void)
 {
         spu_sched_exit();
         unregister_spu_syscalls(&spufs_calls);
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index fa4550611c11..155aa690e4bb 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -680,8 +680,8 @@ static int __init iseries_probe(int platform)
         if (PLATFORM_ISERIES_LPAR != platform)
                 return 0;
 
-        ppc64_firmware_features |= FW_FEATURE_ISERIES;
-        ppc64_firmware_features |= FW_FEATURE_LPAR;
+        powerpc_firmware_features |= FW_FEATURE_ISERIES;
+        powerpc_firmware_features |= FW_FEATURE_LPAR;
 
         return 1;
 }
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 989f4bc136cb..c01d8f0cbe6d 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -91,7 +91,7 @@ void __init fw_feature_init(void)
                                 continue;
 
                         /* we have a match */
-                        ppc64_firmware_features |=
+                        powerpc_firmware_features |=
                                 firmware_features_table[i].val;
                         break;
                 }
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index 138e128a3886..ba6befd96636 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -62,6 +62,11 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count)
         unsigned long *lbuf = (unsigned long *) buf;
         long ret;
 
+
+        /* hcall will ret H_PARAMETER if 'count' exceeds firmware max.*/
+        if (count > MAX_VIO_PUT_CHARS)
+                count = MAX_VIO_PUT_CHARS;
+
         ret = plpar_hcall_norets(H_PUT_TERM_CHAR, vtermno, count, lbuf[0],
                                  lbuf[1]);
         if (ret == H_Success)
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index b046bcf7443d..9639c66b453d 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -132,7 +132,7 @@ static int __init init_ras_IRQ(void)
                 of_node_put(np);
         }
 
-        return 1;
+        return 0;
 }
 __initcall(init_ras_IRQ);
 
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 213bf983242f..f736234db9b2 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -385,7 +385,7 @@ static int __init pSeries_probe(int platform)
          */
 
         if (platform == PLATFORM_PSERIES_LPAR)
-                ppc64_firmware_features |= FW_FEATURE_LPAR;
+                powerpc_firmware_features |= FW_FEATURE_LPAR;
 
         return 1;
 }