[SPARC64]: Convert to use generic exception table support.

The funny "range" exception table entries we had were only
used by the compat layer socketcall assembly, and it wasn't
even needed there.

For free we now get proper exception table sorting and fast
binary searching.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 5 deletions

diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index 02af08ffec8f..9d6be20f4125 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -246,10 +246,10 @@ void kernel_mna_trap_fault(void)
 {
         struct pt_regs *regs = current_thread_info()->kern_una_regs;
         unsigned int insn = current_thread_info()->kern_una_insn;
-        unsigned long g2 = regs->u_regs[UREG_G2];
-        unsigned long fixup = search_extables_range(regs->tpc, &g2);
+        const struct exception_table_entry *entry;
 
-        if (!fixup) {
+        entry = search_exception_tables(regs->tpc);
+        if (!entry) {
                 unsigned long address;
 
                 address = compute_effective_address(regs, insn,
@@ -270,9 +270,8 @@ void kernel_mna_trap_fault(void)
                 die_if_kernel("Oops", regs);
                 /* Not reached */
         }
-        regs->tpc = fixup;
+        regs->tpc = entry->fixup;
         regs->tnpc = regs->tpc + 4;
-        regs->u_regs [UREG_G2] = g2;
 
         regs->tstate &= ~TSTATE_ASI;
         regs->tstate |= (ASI_AIUS << 24UL);