kernel: Move arches to use common unaligned access

Unaligned access is ok for the following arches:
cris, m68k, mn10300, powerpc, s390, x86

Arches that use the memmove implementation for native endian, and
the byteshifting for the opposite endianness.
h8300, m32r, xtensa

Packed struct for native endian, byteshifting for other endian:
alpha, blackfin, ia64, parisc, sparc, sparc64, mips, sh

m86knommu is generic_be for Coldfire, otherwise unaligned access is ok.

frv, arm chooses endianness based on compiler settings, uses the byteshifting
versions.  Remove the unaligned trap handler from frv as it is now unused.

v850 is le, uses the byteshifting versions for both be and le.

Remove the now unused asm-generic implementation.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index a40df80b2ebd..1d2dfe67d442 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -362,11 +362,8 @@ asmlinkage void memory_access_exception(unsigned long esr0,
 #ifdef CONFIG_MMU
         unsigned long fixup;
 
-        if ((esr0 & ESRx_EC) == ESRx_EC_DATA_ACCESS)
-                if (handle_misalignment(esr0, ear0, epcr0) == 0)
-                        return;
-
-        if ((fixup = search_exception_table(__frame->pc)) != 0) {
+        fixup = search_exception_table(__frame->pc);
+        if (fixup) {
                 __frame->pc = fixup;
                 return;
         }