tree 3a56c3f3dbf30506bd47b9af085f3c20863b4dee
parent bdb5ac801af3d81d36732c2f640d6a1d3df83826
author Andrey Ryabinin <aryabinin@virtuozzo.com> 1517508049 +0300
committer Linus Torvalds <torvalds@linux-foundation.org> 1517516421 -0800

compiler.h: Add read_word_at_a_time() function.

Sometimes we know that it's safe to do potentially out-of-bounds access
because we know it won't cross a page boundary.  Still, KASAN will
report this as a bug.

Add read_word_at_a_time() function which is supposed to be used in such
cases.  In read_word_at_a_time() KASAN performs relaxed check - only the
first byte of access is validated.

Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>