parisc: Delete unnecessary nop's in entry.S

[cascardo/linux.git] / arch / parisc / kernel / entry.S

diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 8c4712b..293ba44 100644 (file)
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -997,13 +997,6 @@ intr_restore:
 
        rfi
        nop
-       nop
-       nop
-       nop
-       nop
-       nop
-       nop
-       nop
 
 #ifndef CONFIG_PREEMPT
 # define intr_do_preempt       intr_restore
@@ -2047,12 +2040,13 @@ syscall_do_signal:
        b,n     syscall_check_sig
 
 syscall_restore:
-       /* Are we being ptraced? */
        LDREG   TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 
-       ldw     TASK_PTRACE(%r1), %r19
-       bb,<    %r19,31,syscall_restore_rfi
-       nop
+       /* Are we being ptraced? */
+       ldw     TASK_FLAGS(%r1),%r19
+       ldi     (_TIF_SINGLESTEP|_TIF_BLOCKSTEP),%r2
+       and,COND(=)     %r19,%r2,%r0
+       b,n     syscall_restore_rfi
 
        ldo     TASK_PT_FR31(%r1),%r19             /* reload fpregs */
        rest_fp %r19
@@ -2075,9 +2069,10 @@ syscall_restore:
        LDREG   TASK_PT_GR31(%r1),%r31     /* restore syscall rp */
 
        /* NOTE: We use rsm/ssm pair to make this operation atomic */
+       LDREG   TASK_PT_GR30(%r1),%r1              /* Get user sp */
        rsm     PSW_SM_I, %r0
-       LDREG   TASK_PT_GR30(%r1),%r30             /* restore user sp */
-       mfsp    %sr3,%r1                           /* Get users space id */
+       copy    %r1,%r30                           /* Restore user sp */
+       mfsp    %sr3,%r1                           /* Get user space id */
        mtsp    %r1,%sr7                           /* Restore sr7 */
        ssm     PSW_SM_I, %r0
 
@@ -2113,16 +2108,16 @@ syscall_restore_rfi:
        ldi     0x0b,%r20                          /* Create new PSW */
        depi    -1,13,1,%r20                       /* C, Q, D, and I bits */
 
-       /* The values of PA_SINGLESTEP_BIT and PA_BLOCKSTEP_BIT are
-        * set in include/linux/ptrace.h and converted to PA bitmap
+       /* The values of SINGLESTEP_BIT and BLOCKSTEP_BIT are
+        * set in thread_info.h and converted to PA bitmap
         * numbers in asm-offsets.c */
 
-       /* if ((%r19.PA_SINGLESTEP_BIT)) { %r20.27=1} */
-       extru,= %r19,PA_SINGLESTEP_BIT,1,%r0
+       /* if ((%r19.SINGLESTEP_BIT)) { %r20.27=1} */
+       extru,= %r19,TIF_SINGLESTEP_PA_BIT,1,%r0
        depi    -1,27,1,%r20                       /* R bit */
 
-       /* if ((%r19.PA_BLOCKSTEP_BIT)) { %r20.7=1} */
-       extru,= %r19,PA_BLOCKSTEP_BIT,1,%r0
+       /* if ((%r19.BLOCKSTEP_BIT)) { %r20.7=1} */
+       extru,= %r19,TIF_BLOCKSTEP_PA_BIT,1,%r0
        depi    -1,7,1,%r20                        /* T bit */
 
        STREG   %r20,TASK_PT_PSW(%r1)