[IA64] Remove COMPAT_IA32 support

This has been broken since May 2008 when Al Viro killed altroot support.
Since nobody has complained, it would appear that there are no users of
this code (A plausible theory since the main OSVs that support ia64 prefer
to use the IA32-EL software emulation).

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 0 insertions, 39 deletions

diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index d75b872ca4dc..9a260b317d8d 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -71,15 +71,6 @@ ENTRY(ia64_execve)
         add out3=16,sp                  // regs
         br.call.sptk.many rp=sys_execve
 .ret0:
-#ifdef CONFIG_IA32_SUPPORT
-        /*
-         * Check if we're returning to ia32 mode. If so, we need to restore ia32 registers
-         * from pt_regs.
-         */
-        adds r16=PT(CR_IPSR)+16,sp
-        ;;
-        ld8 r16=[r16]
-#endif
         cmp4.ge p6,p7=r8,r0
         mov ar.pfs=loc1                 // restore ar.pfs
         sxt4 r8=r8                      // return 64-bit result
@@ -108,12 +99,6 @@ ENTRY(ia64_execve)
         ldf.fill f23=[sp];      ldf.fill f24=[sp];      mov f25=f0
         ldf.fill f26=[sp];      ldf.fill f27=[sp];      mov f28=f0
         ldf.fill f29=[sp];      ldf.fill f30=[sp];      mov f31=f0
-#ifdef CONFIG_IA32_SUPPORT
-        tbit.nz p6,p0=r16, IA64_PSR_IS_BIT
-        movl loc0=ia64_ret_from_ia32_execve
-        ;;
-(p6)    mov rp=loc0
-#endif
         br.ret.sptk.many rp
 END(ia64_execve)
 
@@ -848,30 +833,6 @@ __paravirt_work_processed_syscall:
         br.cond.sptk.many rbs_switch    // B
 END(__paravirt_leave_syscall)
 
-#ifdef __IA64_ASM_PARAVIRTUALIZED_NATIVE
-#ifdef CONFIG_IA32_SUPPORT
-GLOBAL_ENTRY(ia64_ret_from_ia32_execve)
-        PT_REGS_UNWIND_INFO(0)
-        adds r2=PT(R8)+16,sp                    // r2 = &pt_regs.r8
-        adds r3=PT(R10)+16,sp                   // r3 = &pt_regs.r10
-        ;;
-        .mem.offset 0,0
-        st8.spill [r2]=r8       // store return value in slot for r8 and set unat bit
-        .mem.offset 8,0
-        st8.spill [r3]=r0       // clear error indication in slot for r10 and set unat bit
-#ifdef CONFIG_PARAVIRT
-        ;;
-        // don't fall through, ia64_leave_kernel may be #define'd
-        br.cond.sptk.few ia64_leave_kernel
-        ;;
-#endif /* CONFIG_PARAVIRT */
-END(ia64_ret_from_ia32_execve)
-#ifndef CONFIG_PARAVIRT
-        // fall through
-#endif
-#endif /* CONFIG_IA32_SUPPORT */
-#endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */
-
 GLOBAL_ENTRY(__paravirt_leave_kernel)
         PT_REGS_UNWIND_INFO(0)
         /*