powerpc: TIF_ABI_PENDING bit removal

Here are the powerpc bits to remove TIF_ABI_PENDING now that
set_personality() is called at the appropriate place in exec.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

3 files changed, 2 insertions, 20 deletions

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 17828ad411eb..c376eda15313 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -235,14 +235,10 @@ typedef elf_vrregset_t elf_fpxregset_t;
 #ifdef __powerpc64__
 # define SET_PERSONALITY(ex)                                    \
 do {                                                            \
-        unsigned long new_flags = 0;                            \
         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)               \
-                new_flags = _TIF_32BIT;                         \
-        if ((current_thread_info()->flags & _TIF_32BIT)         \
-            != new_flags)                                       \
-                set_thread_flag(TIF_ABI_PENDING);               \
+                set_thread_flag(TIF_32BIT);                     \
         else                                                    \
-                clear_thread_flag(TIF_ABI_PENDING);             \
+                clear_thread_flag(TIF_32BIT);                   \
         if (personality(current->personality) != PER_LINUX32)   \
                 set_personality(PER_LINUX |                     \
                         (current->personality & (~PER_MASK)));  \
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index c8b329255678..aa9d383a1c09 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -111,7 +111,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NOTIFY_RESUME       13      /* callback before returning to user */
 #define TIF_FREEZE              14      /* Freezing for suspend */
 #define TIF_RUNLATCH            15      /* Is the runlatch enabled? */
-#define TIF_ABI_PENDING         16      /* 32/64 bit switch needed */
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE      (1<<TIF_SYSCALL_TRACE)
@@ -129,7 +128,6 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_NOTIFY_RESUME      (1<<TIF_NOTIFY_RESUME)
 #define _TIF_FREEZE             (1<<TIF_FREEZE)
 #define _TIF_RUNLATCH           (1<<TIF_RUNLATCH)
-#define _TIF_ABI_PENDING        (1<<TIF_ABI_PENDING)
 #define _TIF_SYSCALL_T_OR_A     (_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SECCOMP)
 
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index c930ac38e59f..7b816daf3eba 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -554,18 +554,6 @@ void exit_thread(void)
 
 void flush_thread(void)
 {
-#ifdef CONFIG_PPC64
-        struct thread_info *t = current_thread_info();
-
-        if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
-                clear_ti_thread_flag(t, TIF_ABI_PENDING);
-                if (test_ti_thread_flag(t, TIF_32BIT))
-                        clear_ti_thread_flag(t, TIF_32BIT);
-                else
-                        set_ti_thread_flag(t, TIF_32BIT);
-        }
-#endif
-
         discard_lazy_cpu_state();
 
         if (current->thread.dabr) {