| Message ID | 47785f5259ba9ed493d2ac94ec7c2492fa5c1f14.1605046192.git.andreyknvl@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | kasan: add hardware tag-based mode for arm64 | expand |
On Tue, Nov 10, 2020 at 11:11 PM Andrey Konovalov <andreyknvl@google.com> wrote: > > This is a preparatory commit for the upcoming addition of a new hardware > tag-based (MTE-based) KASAN mode. > > Hardware tag-based KASAN won't be using shadow memory, but will reuse > this function. Rename "shadow" to implementation-neutral "metadata". > > No functional changes. > > Signed-off-by: Andrey Konovalov <andreyknvl@google.com> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> > Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Alexander Potapenko <glider@google.com> > --- > Change-Id: I18397dddbed6bc6d365ddcaf063a83948e1150a5 > --- > mm/kasan/report.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/mm/kasan/report.c b/mm/kasan/report.c > index 2990ca34abaf..5d5733831ad7 100644 > --- a/mm/kasan/report.c > +++ b/mm/kasan/report.c > @@ -252,7 +252,7 @@ static int shadow_pointer_offset(const void *row, const void *shadow) > (shadow - row) / SHADOW_BYTES_PER_BLOCK + 1; > } > > -static void print_shadow_for_address(const void *addr) > +static void print_memory_metadata(const void *addr) > { > int i; > const void *shadow = kasan_mem_to_shadow(addr); > @@ -338,7 +338,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip) > pr_err("\n"); > print_address_description(object, tag); > pr_err("\n"); > - print_shadow_for_address(object); > + print_memory_metadata(object); > end_report(&flags); > } > > @@ -379,7 +379,7 @@ static void __kasan_report(unsigned long addr, size_t size, bool is_write, > if (addr_has_metadata(untagged_addr)) { > print_address_description(untagged_addr, get_tag(tagged_addr)); > pr_err("\n"); > - print_shadow_for_address(info.first_bad_addr); > + print_memory_metadata(info.first_bad_addr); > } else { > dump_stack(); > } > -- > 2.29.2.222.g5d2a92d10f8-goog >
diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 2990ca34abaf..5d5733831ad7 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -252,7 +252,7 @@ static int shadow_pointer_offset(const void *row, const void *shadow) (shadow - row) / SHADOW_BYTES_PER_BLOCK + 1; } -static void print_shadow_for_address(const void *addr) +static void print_memory_metadata(const void *addr) { int i; const void *shadow = kasan_mem_to_shadow(addr); @@ -338,7 +338,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip) pr_err("\n"); print_address_description(object, tag); pr_err("\n"); - print_shadow_for_address(object); + print_memory_metadata(object); end_report(&flags); } @@ -379,7 +379,7 @@ static void __kasan_report(unsigned long addr, size_t size, bool is_write, if (addr_has_metadata(untagged_addr)) { print_address_description(untagged_addr, get_tag(tagged_addr)); pr_err("\n"); - print_shadow_for_address(info.first_bad_addr); + print_memory_metadata(info.first_bad_addr); } else { dump_stack(); }