[S390] remove ieee_instruction_pointer from thread_struct
The ieee_instruction_pointer can not be read from user space anymore
since git commit 613e1def6b52c399a8b72a5e11bc2e57d2546fb8, the ptrace
interface always returns zero. Remove it from the thread_struct. It
is still present in the user_regs_struct for compatability reasons.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
index 123dd66..3141025 100644
--- a/arch/s390/kernel/compat_ptrace.h
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -51,8 +51,7 @@
* watchpoints. This is the way intel does it.
*/
per_struct32 per_info;
- u32 ieee_instruction_pointer;
- /* Used to give failing instruction back to user for ieee exceptions */
+ u32 ieee_instruction_pointer; /* obsolete, always 0 */
};
struct user32 {
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index e9b063e..7064082 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -447,7 +447,6 @@
else if (fpc & 0x0800) /* inexact */
si.si_code = FPE_FLTRES;
}
- current->thread.ieee_instruction_pointer = (addr_t) location;
do_trap(pgm_int_code, SIGFPE,
"floating point exception", regs, &si);
}