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-rw-r--r--arch/mips/kernel/process.c4
-rw-r--r--arch/mips/kernel/ptrace.c12
-rw-r--r--arch/mips/kernel/ptrace32.c6
3 files changed, 7 insertions, 15 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 0476a4dce14e..aca56f4a5d50 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -229,9 +229,7 @@ void elf_dump_regs(elf_greg_t *gp, struct pt_regs *regs)
int dump_task_regs (struct task_struct *tsk, elf_gregset_t *regs)
{
- struct thread_info *ti = tsk->thread_info;
- long ksp = (unsigned long)ti + THREAD_SIZE - 32;
- elf_dump_regs(&(*regs)[0], (struct pt_regs *) ksp - 1);
+ elf_dump_regs(*regs, task_pt_regs(tsk));
return 1;
}
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 8d2549335304..6c358b333166 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -64,8 +64,7 @@ int ptrace_getregs (struct task_struct *child, __s64 __user *data)
if (!access_ok(VERIFY_WRITE, data, 38 * 8))
return -EIO;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
for (i = 0; i < 32; i++)
__put_user (regs->regs[i], data + i);
@@ -92,8 +91,7 @@ int ptrace_setregs (struct task_struct *child, __s64 __user *data)
if (!access_ok(VERIFY_READ, data, 38 * 8))
return -EIO;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
for (i = 0; i < 32; i++)
__get_user (regs->regs[i], data + i);
@@ -198,8 +196,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
struct pt_regs *regs;
unsigned long tmp = 0;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
ret = 0; /* Default return value. */
switch (addr) {
@@ -314,8 +311,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
case PTRACE_POKEUSR: {
struct pt_regs *regs;
ret = 0;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
switch (addr) {
case 0 ... 31:
diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index 1f998bfde165..456ec438728c 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -126,8 +126,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
struct pt_regs *regs;
unsigned int tmp;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
ret = 0; /* Default return value. */
switch (addr) {
@@ -259,8 +258,7 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
case PTRACE_POKEUSR: {
struct pt_regs *regs;
ret = 0;
- regs = (struct pt_regs *) ((unsigned long) child->thread_info +
- THREAD_SIZE - 32 - sizeof(struct pt_regs));
+ regs = task_pt_regs(child);
switch (addr) {
case 0 ... 31: