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.
openssl · Apr 13, 2013 · 3bdd805 · 3bdd805
1 parent 4544f0a
commit 3bdd805
Showing 1 changed file with 1 addition and 4 deletions.
diff --git 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