On Mon, 1 Feb 2021 20:43:34 +0100 Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: > This change provides a simpler implementation of mte_get_mem_tag(), > mte_get_random_tag(), and mte_set_mem_tag_range(). > > Simplifications include removing system_supports_mte() checks as these > functions are onlye called from KASAN runtime that had already checked > system_supports_mte(). Besides that, size and address alignment checks > are removed from mte_set_mem_tag_range(), as KASAN now does those. > > This change also moves these functions into the asm/mte-kasan.h header > and implements mte_set_mem_tag_range() via inline assembly to avoid > unnecessary functions calls. > > Co-developed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx> Co-developed-by requires a Signed-off-by: as well. Vincenzo, please send us one?
