Re: [PATCH] [net-next] ISDN: eicon: reduce stack size of sig_ind function

[David Miller]

From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed, 25 Jan 2017 23:15:53 +0100

> I noticed that this function uses a lot of kernel stack when the
> "latent entropy" plugin is enabled:
> 
> drivers/isdn/hardware/eicon/message.c: In function 'sig_ind':
> drivers/isdn/hardware/eicon/message.c:6113:1: error: the frame size of 1168 bytes is larger than 1152 bytes [-Werror=frame-larger-than=]
> 
> We currently don't warn about this, as we raise the warning limit
> to 2048 bytes in mainline, but I'd like to lower that limit again
> in the future, and this function can easily be changed to be more
> efficient and avoid that warning, by making some of its local
> variables 'const'.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied, thanks Arnd.