[POWERPC] spufs: remove stop_code from struct spu

This patch remove 'stop_code' -- discarded member of struct spu.
It is written at initialize and interrupt, but never read
in current implementation.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 0 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 8ca22394e4d3..249a0af4cc99 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -160,7 +160,6 @@ static int __spu_trap_mailbox(struct spu *spu)
 static int __spu_trap_stop(struct spu *spu)
 {
         pr_debug("%s\n", __FUNCTION__);
-        spu->stop_code = in_be32(&spu->problem->spu_status_R);
         if (spu->stop_callback)
                 spu->stop_callback(spu);
         return 0;
@@ -169,7 +168,6 @@ static int __spu_trap_stop(struct spu *spu)
 static int __spu_trap_halt(struct spu *spu)
 {
         pr_debug("%s\n", __FUNCTION__);
-        spu->stop_code = in_be32(&spu->problem->spu_status_R);
         if (spu->stop_callback)
                 spu->stop_callback(spu);
         return 0;
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index 2dae062a9aec..b30e55dab832 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -2109,7 +2109,6 @@ int spu_restore(struct spu_state *new, struct spu *spu)
 
         acquire_spu_lock(spu);
         harvest(NULL, spu);
-        spu->stop_code = 0;
         spu->dar = 0;
         spu->dsisr = 0;
         spu->slb_replace = 0;
diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index c7812e92f683..c0290f9d20bd 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -134,7 +134,6 @@ struct spu {
         int class_0_pending;
         spinlock_t register_lock;
 
-        u32 stop_code;
         void (* wbox_callback)(struct spu *spu);
         void (* ibox_callback)(struct spu *spu);
         void (* stop_callback)(struct spu *spu);