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SubjectRe: PROBLEM: 5.3.0-rc* causes iwlwifi failure
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On Tue, 2019-08-20 at 19:37 -0400, Stuart Little wrote:
> On Tue, Aug 20, 2019 at 01:45:37PM +0300, Luciano Coelho wrote:
> > I'll have to look into all NIC/FW-version combinations that we have
> > and
> > update the iwl_mvm_sar_geo_support() function accordingly, which
> > is,
> > BTW, the easier place for you to change if you want to workaround
> > the
> > issue.
>
> Thanks!
>
> I didn't quite know how to interpret this suggestion (i.e. what the
> change should be), so I was poking around in there out of curiosity.
> One simple-minded thing that worked was to just pretend that that
> function always returns false:
>
> --- cut here ---
>
> diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> index 5de54d1559dd..8c0160e5588f 100644
> --- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> +++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
> @@ -925,7 +925,7 @@ int iwl_mvm_get_sar_geo_profile(struct iwl_mvm
> *mvm)
> .data = { data },
> };
>
> - if (!iwl_mvm_sar_geo_support(mvm))
> + /*if (!iwl_mvm_sar_geo_support(mvm))*/
> return -EOPNOTSUPP;
>
> ret = iwl_mvm_send_cmd(mvm, &cmd);
> @@ -953,7 +953,7 @@ static int iwl_mvm_sar_geo_init(struct iwl_mvm
> *mvm)
> int ret, i, j;
> u16 cmd_wide_id = WIDE_ID(PHY_OPS_GROUP,
> GEO_TX_POWER_LIMIT);
>
> - if (!iwl_mvm_sar_geo_support(mvm))
> + /*if (!iwl_mvm_sar_geo_support(mvm))*/
> return 0;
>
> ret = iwl_mvm_sar_get_wgds_table(mvm);
>
> --- cut here ---

Yeah, I meant more or less to return false for your NIC. You could
have just forced that function return false.

--
Cheers,
Luca.

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