6 files changed, 57 insertions, 22 deletions

diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 43b1162d714f..52cada45b353 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -1039,7 +1039,7 @@ asmlinkage long sys32_newuname(struct new_utsname __user * name)
         int ret = 0;
 
         down_read(&uts_sem);
-        if (copy_to_user(name,&system_utsname,sizeof *name))
+        if (copy_to_user(name, utsname(), sizeof *name))
                 ret = -EFAULT;
         up_read(&uts_sem);
 
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 50c17eaa7f25..477c5334ec1b 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -42,8 +42,6 @@
 
 #include "signal-common.h"
 
-extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
-
 /*
  * Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
  */
@@ -83,6 +81,8 @@ struct rt_sigframe_n32 {
 #endif
 };
 
+extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat);
+
 save_static_function(sysn32_rt_sigsuspend);
 __attribute_used__ noinline static int
 _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 9951240cc3fd..26e1a7e78d13 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -231,7 +231,7 @@ out:
  */
 asmlinkage int sys_uname(struct old_utsname __user * name)
 {
-        if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
+        if (name && !copy_to_user(name, utsname(), sizeof (*name)))
                 return 0;
         return -EFAULT;
 }
@@ -248,16 +248,21 @@ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
         if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
                 return -EFAULT;
 
-        error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
-        error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
-        error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
-        error -= __put_user(0,name->release+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
-        error -= __put_user(0,name->version+__OLD_UTS_LEN);
-        error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
-        error = __put_user(0,name->machine+__OLD_UTS_LEN);
+        error = __copy_to_user(&name->sysname, &utsname()->sysname,
+                               __OLD_UTS_LEN);
+        error -= __put_user(0, name->sysname + __OLD_UTS_LEN);
+        error -= __copy_to_user(&name->nodename, &utsname()->nodename,
+                                __OLD_UTS_LEN);
+        error -= __put_user(0, name->nodename + __OLD_UTS_LEN);
+        error -= __copy_to_user(&name->release, &utsname()->release,
+                                __OLD_UTS_LEN);
+        error -= __put_user(0, name->release + __OLD_UTS_LEN);
+        error -= __copy_to_user(&name->version, &utsname()->version,
+                                __OLD_UTS_LEN);
+        error -= __put_user(0, name->version + __OLD_UTS_LEN);
+        error -= __copy_to_user(&name->machine, &utsname()->machine,
+                                __OLD_UTS_LEN);
+        error = __put_user(0, name->machine + __OLD_UTS_LEN);
         error = error ? -EFAULT : 0;
 
         return error;
@@ -401,3 +406,32 @@ asmlinkage void bad_stack(void)
 {
         do_exit(SIGSEGV);
 }
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+        register unsigned long __a0 asm("$4") = (unsigned long) filename;
+        register unsigned long __a1 asm("$5") = (unsigned long) argv;
+        register unsigned long __a2 asm("$6") = (unsigned long) envp;
+        register unsigned long __a3 asm("$7");
+        unsigned long __v0;
+
+        __asm__ volatile ("                                     \n"
+        "       .set    noreorder                               \n"
+        "       li      $2, %5          # __NR_execve           \n"
+        "       syscall                                         \n"
+        "       move    %0, $2                                  \n"
+        "       .set    reorder                                 \n"
+        : "=&r" (__v0), "=r" (__a3)
+        : "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_execve)
+        : "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24",
+          "memory");
+
+        if (__a3 == 0)
+                return __v0;
+
+        return -__v0;
+}
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 1137dd6ea7aa..11bb97174972 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -884,7 +884,7 @@ asmlinkage int irix_getdomainname(char __user *name, int len)
         down_read(&uts_sem);
         if (len > __NEW_UTS_LEN)
                 len = __NEW_UTS_LEN;
-        err = copy_to_user(name, system_utsname.domainname, len) ? -EFAULT : 0;
+        err = copy_to_user(name, utsname()->domainname, len) ? -EFAULT : 0;
         up_read(&uts_sem);
 
         return err;
@@ -1127,11 +1127,11 @@ struct iuname {
 asmlinkage int irix_uname(struct iuname __user *buf)
 {
         down_read(&uts_sem);
-        if (copy_from_user(system_utsname.sysname, buf->sysname, 65)
-            || copy_from_user(system_utsname.nodename, buf->nodename, 65)
-            || copy_from_user(system_utsname.release, buf->release, 65)
-            || copy_from_user(system_utsname.version, buf->version, 65)
-            || copy_from_user(system_utsname.machine, buf->machine, 65)) {
+        if (copy_from_user(utsname()->sysname, buf->sysname, 65)
+            || copy_from_user(utsname()->nodename, buf->nodename, 65)
+            || copy_from_user(utsname()->release, buf->release, 65)
+            || copy_from_user(utsname()->version, buf->version, 65)
+            || copy_from_user(utsname()->machine, buf->machine, 65)) {
                 return -EFAULT;
         }
         up_read(&uts_sem);
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 8134220ed600..7a941ecff3bb 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -123,7 +123,8 @@ static inline void power_button(void)
         if (machine_state & MACHINE_PANICED)
                 return;
 
-        if ((machine_state & MACHINE_SHUTTING_DOWN) || kill_proc(1,SIGINT,1)) {
+        if ((machine_state & MACHINE_SHUTTING_DOWN) ||
+                        kill_cad_pid(SIGINT, 1)) {
                 /* No init process or button pressed twice.  */
                 sgi_machine_power_off();
         }
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index 79ddb4605659..fd0932b2d521 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -120,7 +120,7 @@ static inline void ip32_power_button(void)
         if (has_panicked)
                 return;
 
-        if (shuting_down || kill_proc(1, SIGINT, 1)) {
+        if (shuting_down || kill_cad_pid(SIGINT, 1)) {
                 /* No init process or button pressed twice.  */
                 ip32_machine_power_off();
         }