Alexander Potapenko 0be7b2c232 kmsan: prevent optimizations in memcpy tests ... Clang 18 learned to optimize away memcpy() calls of small uninitialized scalar values. To ensure that memcpy tests in kmsan_test.c still perform calls to memcpy() (which KMSAN replaces with __msan_memcpy()), declare a separate memcpy_noinline() function with volatile parameters, which won't be optimized. Also retire DO_NOT_OPTIMIZE(), as memcpy_noinline() is apparently enough. Link: https://lkml.kernel.org/r/20230911145702.2663753-2-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Marco Elver <elver@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-10-04 10:32:22 -07:00
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core.c	kmsan: simplify kmsan_internal_memmove_metadata()	2023-10-04 10:32:22 -07:00
hooks.c	mm: kmsan: use helper macro offset_in_page()	2023-08-21 13:37:29 -07:00
init.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
instrumentation.c	kasan,kmsan: remove __GFP_KSWAPD_RECLAIM usage from kasan/kmsan	2023-06-23 16:59:26 -07:00
kmsan_test.c	kmsan: prevent optimizations in memcpy tests	2023-10-04 10:32:22 -07:00
kmsan.h	kmsan: core: kmsan_in_runtime() should return true in NMI context	2022-11-08 15:57:24 -08:00
Makefile	kmsan: disable ftrace in kmsan core code	2023-02-20 12:46:16 -08:00
report.c	kmsan: add KMSAN runtime core	2022-10-03 14:03:19 -07:00
shadow.c	mm: kmsan: use helper macros PAGE_ALIGN and PAGE_ALIGN_DOWN	2023-08-21 13:37:29 -07:00