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Re: [PATCH 08/31] iwlwifi: mvm: rs: print single stream params via debugfs

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On Sun, Mar 1, 2015 at 9:42 PM, Joe Perches <joe@xxxxxxxxxxx> wrote:
> On Sun, 2015-03-01 at 21:31 +0200, Emmanuel Grumbach wrote:
>> From: Eyal Shapira <eyal@xxxxxxxxxx>
>>
>> Add this to the info printed when reading rate_scale_table.
>> Useful for debugging.
> []
>> diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
> []
>> @@ -3369,6 +3370,16 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
>>                       lq_sta->lq.agg_frame_cnt_limit);
>>
>>       desc += sprintf(buff+desc, "reduced tpc=%d\n", lq_sta->lq.reduced_tpc);
>> +     ss_params = le32_to_cpu(lq_sta->lq.ss_params);
>> +     desc += sprintf(buff+desc, "single stream params: %s%s%s%s\n",
>> +                     (ss_params & LQ_SS_PARAMS_VALID) ?
>> +                     "VALID," : "INVALID",
>> +                     (ss_params & LQ_SS_BFER_ALLOWED) ?
>> +                     "BFER," : "",
>> +                     (ss_params & LQ_SS_STBC_1SS_ALLOWED) ?
>> +                     "STBC," : "",
>> +                     (ss_params & LQ_SS_FORCE) ?
>> +                     "FORCE" : "");
>
> Are all things exclusive?

INVALID is exclusive to the other options so there's no real readability issue.
I like your version better though as it avoids the additional comma in the end.
Submitted to Emmanuel's internal tree.
Thanks

> If no, the output is not easily readable.
>
> It would probably be better to use:
> 12345678901234567890123456789012345678901234567890123456789012345678901234567890
>         desc += sprintf(buff+desc, "single stream params: %s%s%s%s\n",
>                         (ss_params & LQ_SS_PARAMS_VALID) ?
>                         "VALID" : "INVALID",
>                         (ss_params & LQ_SS_BFER_ALLOWED) ?
>                         ", BFER" : "",
>                         (ss_params & LQ_SS_STBC_1SS_ALLOWED) ?
>                         ", STBC" : "",
>                         (ss_params & LQ_SS_FORCE) ?
>                         ", FORCE" : "");
>
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