Re: [PATCH v4.4-rc8 6/7] isdn: eicon: diddfunc: Silence frame size warning

[Sergei Shtylyov]

Hello.

On 01/08/2016 03:32 PM, tim.gardner@xxxxxxxxxxxxx wrote:

> From: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
>
> drivers/isdn/hardware/eicon/diddfunc.c: In function 'connect_didd':
> drivers/isdn/hardware/eicon/diddfunc.c:77:1: warning: the frame size of 1152 bytes is larger than 1024 bytes [-Wframe-larger-than=]
>
> gcc version 5.3.1 20151219 (Ubuntu 5.3.1-4ubuntu1)
>
> Cc: Armin Schindler <mac@xxxxxxxxxx>
> Cc: Karsten Keil <isdn@xxxxxxxxxxxxxx>
> Signed-off-by: Tim Gardner <tim.gardner@xxxxxxxxxxxxx>
> ---
>   drivers/isdn/hardware/eicon/diddfunc.c | 17 +++++++++++++----
>   1 file changed, 13 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/isdn/hardware/eicon/diddfunc.c b/drivers/isdn/hardware/eicon/diddfunc.c
> index b0b23ed..a9feb4f 100644
> --- a/drivers/isdn/hardware/eicon/diddfunc.c
> +++ b/drivers/isdn/hardware/eicon/diddfunc.c
> @@ -52,9 +52,13 @@ static int __init connect_didd(void)
>   	int x = 0;
>   	int dadapter = 0;
>   	IDI_SYNC_REQ req;
> -	DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
> +	DESCRIPTOR *DIDD_Table;
>
> -	DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
> +	DIDD_Table = kcalloc(MAX_DESCRIPTORS, sizeof(*DIDD_Table), GFP_KERNEL);

  Previously the array didn't seem to be zeroed, perhaps it's better to use 
kmalloc_array()?

[...]

MHR, Sergei