crypto/modes/modes_lcl.h: let STRICT_ALIGNMENT be on ARMv7.

While ARMv7 in general is capable of unaligned access, not all instructions
actually are. And trouble is that compiler doesn't seem to differentiate
those capable and incapable of unaligned access. Side effect is that kernel
goes into endless loop retrying same instruction triggering unaligned trap.
Problem was observed in xts128.c and ccm128.c modules. It's possible to
resolve it by using (volatile u32*) casts, but letting STRICT_ALIGNMENT
be feels more appropriate.

diff --git a/crypto/modes/modes_lcl.h b/crypto/modes/modes_lcl.h
index 40a6d5a6424f5bee3b751a2aabd1c351348266c8..9d83e128444e0bb583a8313753a0b5fd5e0ec388 100644 (file)
--- a/crypto/modes/modes_lcl.h
+++ b/crypto/modes/modes_lcl.h
@@ -29,10 +29,7 @@ typedef unsigned char u8;
 #if defined(__i386)    || defined(__i386__)    || \
     defined(__x86_64)  || defined(__x86_64__)  || \
     defined(_M_IX86)   || defined(_M_AMD64)    || defined(_M_X64) || \
-    defined(__s390__)  || defined(__s390x__)   || \
-    ( (defined(__arm__)        || defined(__arm)) && \
-      (defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || \
-       defined(__ARM_ARCH_7R__)        || defined(__ARM_ARCH_7M__)) )
+    defined(__s390__)  || defined(__s390x__)
 # undef STRICT_ALIGNMENT
 #endif