On Fri, Nov 29, 2019 at 5:09 PM Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: > > On Fri, Nov 22, 2019 at 12:26 PM <glider@xxxxxxxxxx> wrote: > > > > __no_sanitize_memory is a function attribute that makes KMSAN > > ignore the uninitialized values coming from the function's > > inputs, and initialize the function's outputs. > > > > Functions marked with this attribute can't be inlined into functions > > not marked with it, and vice versa. > > > > __SANITIZE_MEMORY__ is a macro that's defined iff the file is > > instrumented with KMSAN. This is not the same as CONFIG_KMSAN, which is > > defined for every file. > > > > Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> > > To: Alexander Potapenko <glider@xxxxxxxxxx> > > Cc: Vegard Nossum <vegard.nossum@xxxxxxxxxx> > > Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> > > Cc: linux-mm@xxxxxxxxx > > > > --- > > > > Change-Id: I1f1672652c8392f15f7ca8ac26cd4e71f9cc1e4b > > --- > > include/linux/compiler-clang.h | 8 ++++++++ > > include/linux/compiler-gcc.h | 5 +++++ > > 2 files changed, 13 insertions(+) > > > > diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h > > index 333a6695a918..edba13a069a6 100644 > > --- a/include/linux/compiler-clang.h > > +++ b/include/linux/compiler-clang.h > > @@ -24,6 +24,14 @@ > > #define __no_sanitize_address > > #endif > > > > +/* KMSAN is a Clang-only tool, thus putting the defines here */ > > I'm not sure if this comment is useful here. Dropped the comment in v4.
