diff options
| author | Vincenzo Frascino <vincenzo.frascino@arm.com> | 2020-08-07 09:24:50 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-07 21:33:28 +0300 |
| commit | c0e16ab3b5887e86cd45b95e28cf66498b161ee1 (patch) | |
| tree | 66de1cc0ea65e714d64b072b848dab657ba6b29f /lib/strncpy_from_user.c | |
| parent | 9793b62663f54e369a3986543b296992a8a0589c (diff) | |
| download | linux-c0e16ab3b5887e86cd45b95e28cf66498b161ee1.tar.xz | |
kasan: remove kasan_unpoison_stack_above_sp_to()
kasan_unpoison_stack_above_sp_to() is defined in kasan code but never
used. The function was introduced as part of the commit:
commit 9f7d416c36124667 ("kprobes: Unpoison stack in jprobe_return() for KASAN")
... where it was necessary because x86's jprobe_return() would leave
stale shadow on the stack, and was an oddity in that regard.
Since then, jprobes were removed entirely, and as of commit:
commit 80006dbee674f9fa ("kprobes/x86: Remove jprobe implementation")
... there have been no callers of this function.
Remove the declaration and the implementation.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Link: http://lkml.kernel.org/r/20200706143505.23299-1-vincenzo.frascino@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/strncpy_from_user.c')
0 files changed, 0 insertions, 0 deletions