sparc: TIF_ABI_PENDING bit removal

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

Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 4 insertions, 21 deletions

diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index ff66bb88537b..e67880381b84 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -195,17 +195,10 @@ static inline unsigned int sparc64_elf_hwcap(void)
 #define ELF_PLATFORM    (NULL)
 
 #define SET_PERSONALITY(ex)                             \
-do {    unsigned long new_flags = current_thread_info()->flags; \
-        new_flags &= _TIF_32BIT;                        \
-        if ((ex).e_ident[EI_CLASS] == ELFCLASS32)       \
-                new_flags |= _TIF_32BIT;                \
+do {    if ((ex).e_ident[EI_CLASS] == ELFCLASS32)       \
+                set_thread_flag(TIF_32BIT);             \
         else                                            \
-                new_flags &= ~_TIF_32BIT;               \
-        if ((current_thread_info()->flags & _TIF_32BIT) \
-            != new_flags)                               \
-                set_thread_flag(TIF_ABI_PENDING);       \
-        else                                            \
-                clear_thread_flag(TIF_ABI_PENDING);     \
+                clear_thread_flag(TIF_32BIT);           \
         /* flush_thread will update pgd cache */        \
         if (personality(current->personality) != PER_LINUX32)   \
                 set_personality(PER_LINUX |             \
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 7257ebb8f394..39be9f256e5a 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -228,12 +228,11 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define TIF_SECCOMP             9       /* secure computing */
 #define TIF_SYSCALL_AUDIT       10      /* syscall auditing active */
 #define TIF_SYSCALL_TRACEPOINT  11      /* syscall tracepoint instrumentation */
-/* flag bit 11 is available */
 /* NOTE: Thread flags >= 12 should be ones we have no interest
  *       in using in assembly, else we can't use the mask as
  *       an immediate value in instructions such as andcc.
  */
-#define TIF_ABI_PENDING         12
+/* flag bit 12 is available */
 #define TIF_MEMDIE              13
 #define TIF_POLLING_NRFLAG      14
 #define TIF_FREEZE              15      /* is freezing for suspend */
@@ -248,7 +247,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define _TIF_SECCOMP            (1<<TIF_SECCOMP)
 #define _TIF_SYSCALL_AUDIT      (1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SYSCALL_TRACEPOINT (1<<TIF_SYSCALL_TRACEPOINT)
-#define _TIF_ABI_PENDING        (1<<TIF_ABI_PENDING)
 #define _TIF_POLLING_NRFLAG     (1<<TIF_POLLING_NRFLAG)
 #define _TIF_FREEZE             (1<<TIF_FREEZE)
 
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 18d67854a1b8..c3f1cce0e95e 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -365,14 +365,6 @@ void flush_thread(void)
         struct thread_info *t = current_thread_info();
         struct mm_struct *mm;
 
-        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);
-        }
-
         mm = t->task->mm;
         if (mm)
                 tsb_context_switch(mm);