Re: [PATCH 04/15] tty: Remove now superfluous sentinel element from ctl_table array

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Le 02/10/2023 à 10:17, Jiri Slaby a écrit :
> On 28. 09. 23, 15:21, Joel Granados via B4 Relay wrote:
>> From: Joel Granados <j.granados@xxxxxxxxxxx>
>>
>> This commit comes at the tail end of a greater effort to remove the
>> empty elements at the end of the ctl_table arrays (sentinels) which
>> will reduce the overall build time size of the kernel and run time
>> memory bloat by ~64 bytes per sentinel (further information Link :
>> https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@xxxxxxxxxxxxxxxxxxxxxx/)
>>
>> Remove sentinel from tty_table
>>
>> Signed-off-by: Joel Granados <j.granados@xxxxxxxxxxx>
>> ---
>>   drivers/tty/tty_io.c | 3 +--
>>   1 file changed, 1 insertion(+), 2 deletions(-)
>>
>> diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
>> index 8a94e5a43c6d..2f925dc54a20 100644
>> --- a/drivers/tty/tty_io.c
>> +++ b/drivers/tty/tty_io.c
>> @@ -3607,8 +3607,7 @@ static struct ctl_table tty_table[] = {
>>           .proc_handler    = proc_dointvec,
>>           .extra1        = SYSCTL_ZERO,
>>           .extra2        = SYSCTL_ONE,
>> -    },
>> -    { }
>> +    }
> 
> Why to remove the comma? One would need to add one when adding a new entry?

Does it make any difference at all ?

In one case you have:

@xxxx
  		something old,
  	},
+	{
+		something new,
+	},
  }

In the other case you have:

@xxxx
  		something old,
+ 	},
+	{
+		something new,
  	}
  }


Christophe




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