On Wed, Oct 30, 2019 at 3:23 PM <glider@xxxxxxxxxx> wrote:
>
> This patch adds the KernelMemorySanitizer runtime and associated files:
>
> - arch/x86/include/asm/kmsan.h: assembly definitions for hooking
> interrupt handlers;
> - include/linux/kmsan-checks.h: user API to enable/disable KMSAN,
> poison/unpoison memory etc.
> - include/linux/kmsan.h: declarations of KMSAN memory hooks to be
> referenced outside KMSAN runtime
> - lib/Kconfig.kmsan: declarations for CONFIG_KMSAN and
> CONFIG_TEST_KMSAN
> - mm/kmsan/Makefile: boilerplate Makefile
> - mm/kmsan/kmsan.h: internal KMSAN declarations
> - mm/kmsan/kmsan.c: core functions that operate with shadow and
> origin memory and perform checks, utility functions
> - mm/kmsan/kmsan_entry.c: KMSAN hooks for entry_64.S
> - mm/kmsan/kmsan_hooks.c: KMSAN hooks for kernel subsystems
> - mm/kmsan/kmsan_init.c: KMSAN initialization routines
> - mm/kmsan/kmsan_instr.c: functions called by KMSAN instrumentation
> - scripts/Makefile.kmsan: CFLAGS_KMSAN
>
> 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
>+ kmsan_pr_err("Local variable description: %s\n", descr);
>+ kmsan_pr_err("Variable was created at:\n");
It would be nice to tidy up the description, it contains lots of
duplicate/unneeded/confusing info:
Local variable description: ----br.i@vp7045_read_mac_addr
Variable was created at:
vp7045_read_eeprom drivers/media/usb/dvb-usb/vp7045.c:119 [inline]
vp7045_read_mac_addr+0x7b/0xbe0 drivers/media/usb/dvb-usb/vp7045.c:132
vp7045_read_eeprom drivers/media/usb/dvb-usb/vp7045.c:119 [inline]
vp7045_read_mac_addr+0x7b/0xbe0 drivers/media/usb/dvb-usb/vp7045.c:132
It could be just:
Local variable br was created at:
vp7045_read_eeprom drivers/media/usb/dvb-usb/vp7045.c:119 [inline]
vp7045_read_mac_addr+0x7b/0xbe0 drivers/media/usb/dvb-usb/vp7045.c:132
vp7045_read_eeprom drivers/media/usb/dvb-usb/vp7045.c:119 [inline]
vp7045_read_mac_addr+0x7b/0xbe0 drivers/media/usb/dvb-usb/vp7045.c:132
