diff options
| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2021-09-07 13:41:16 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-09-22 11:48:14 +0200 |
| commit | e15c2fe2def24324bfdbfb7ec2837e40b2aac7fd (patch) | |
| tree | 24c5e288ced9bf703f940af2ba47339f3af3232b /include/linux/processor.h | |
| parent | 044e7097e849366dfc71cccfc5d8c8a97cb3f010 (diff) | |
s390/bpf: Fix 64-bit subtraction of the -0x80000000 constant
commit 6e61dc9da0b7a0d91d57c2e20b5ea4fd2d4e7e53 upstream.
The JIT uses agfi for subtracting constants, but -(-0x80000000) cannot
be represented as a 32-bit signed binary integer. Fix by using algfi in
this particular case.
Reported-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Fixes: 054623105728 ("s390/bpf: Add s390x eBPF JIT compiler backend")
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/processor.h')
0 files changed, 0 insertions, 0 deletions