Re: [PATCH 01/16] eicon: fix -Warray-bounds warning

[Ben Hutchings <bhutchings@solarflare.com>]

On Mon, 2012-01-30 at 23:00 +0100, Danny Kukawka wrote:
> Fix for a -Warray-bounds warning. mixer_notify_update() tries to
> write to ((CAPI_MSG *) msg)->info.facility_req.structs[3] while
> structs is defined as byte structs[1], define structs[1] as
> structs[4].

I suspect that all the 'byte structs[1];' fields defined in that header
are actually variable-length arrays.  In that case, there may be no
reasonable bound you can specify.

Ben.

> Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
> ---
>  drivers/isdn/hardware/eicon/capi20.h |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/isdn/hardware/eicon/capi20.h b/drivers/isdn/hardware/eicon/capi20.h
> index 7ebcccd..f9170ad 100644
> --- a/drivers/isdn/hardware/eicon/capi20.h
> +++ b/drivers/isdn/hardware/eicon/capi20.h
> @@ -226,7 +226,7 @@ typedef struct {
>          /* FACILITY-REQUEST */
>  typedef struct {
>    word Selector;
> -  byte structs[1];      /* Facility parameters */
> +  byte structs[4];      /* Facility parameters */
>  } _FAC_REQP;
>          /* FACILITY-CONFIRM STRUCT FOR SUPPLEMENT. SERVICES */
>  typedef struct {

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.