From: Wojciech Ziemba <wojciech.ziemba@xxxxxxxxx> PFVF protocol version 0 is not a valid version, but PF drivers currently would report any such version from VFs as compatible. This patch adds an extra check for the invalid PFVF protocol version 0. Signed-off-by: Wojciech Ziemba <wojciech.ziemba@xxxxxxxxx> Signed-off-by: Marco Chiappero <marco.chiappero@xxxxxxxxx> Reviewed-by: Marco Chiappero <marco.chiappero@xxxxxxxxx> --- drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c b/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c index 588352de1ef0..c059b98836aa 100644 --- a/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c +++ b/drivers/crypto/qat/qat_common/adf_pfvf_pf_proto.c @@ -242,7 +242,9 @@ static int adf_handle_vf2pf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr, "VersionRequest received from VF%d (vers %d) to PF (vers %d)\n", vf_nr, vf_compat_ver, ADF_PFVF_COMPAT_THIS_VERSION); - if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION) + if (vf_compat_ver == 0) + compat = ADF_PF2VF_VF_INCOMPATIBLE; + else if (vf_compat_ver <= ADF_PFVF_COMPAT_THIS_VERSION) compat = ADF_PF2VF_VF_COMPATIBLE; else compat = ADF_PF2VF_VF_COMPAT_UNKNOWN; -- 2.34.1
