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Re: [PATCH 1/7] tunables: Specify a default value for tunables



On 15/05/2017 18:12, Adhemerval Zanella wrote:
> 
> 
> On 11/05/2017 11:51, Siddhesh Poyarekar wrote:
>> Enhance dl-tunables.list to allow specifying a default value for a
>> tunable that it would be initialized to.
>>
>> 	* scripts/gen-tunables.awk: Recognize 'default' keyword in
>> 	dl-tunables.list.
> 
> LGTM, thanks.

I just noted you should update the README.tunables with the new
allowed attribute.


> 
>> ---
>>  scripts/gen-tunables.awk | 12 ++++++++++--
>>  1 file changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/scripts/gen-tunables.awk b/scripts/gen-tunables.awk
>> index defb3e7..b10b00e 100644
>> --- a/scripts/gen-tunables.awk
>> +++ b/scripts/gen-tunables.awk
>> @@ -113,6 +113,14 @@ $1 == "}" {
>>        exit 1
>>      }
>>    }
>> +  else if (attr == "default") {
>> +    if (types[top_ns][ns][tunable] == "STRING") {
>> +      default_val[top_ns][ns][tunable] = sprintf(".strval = \"%s\"", val);
>> +    }
>> +    else {
>> +      default_val[top_ns][ns][tunable] = sprintf(".numval = %s", val)
>> +    }
>> +  }
>>  }
>>  
>>  END {
>> @@ -146,9 +154,9 @@ END {
>>      for (n in types[t]) {
>>        for (m in types[t][n]) {
>>          printf ("  {TUNABLE_NAME_S(%s, %s, %s)", t, n, m)
>> -        printf (", {TUNABLE_TYPE_%s, %s, %s}, {.numval = 0}, NULL, TUNABLE_SECLEVEL_%s, %s},\n",
>> +        printf (", {TUNABLE_TYPE_%s, %s, %s}, {%s}, NULL, TUNABLE_SECLEVEL_%s, %s},\n",
>>  		types[t][n][m], minvals[t][n][m], maxvals[t][n][m],
>> -		security_level[t][n][m], env_alias[t][n][m]);
>> +		default_val[t][n][m], security_level[t][n][m], env_alias[t][n][m]);
>>        }
>>      }
>>    }
>>


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