Re: Expertise required on building code for SMP

From: Arjan van de Ven
Date: Thu Jul 13 2006 - 03:44:31 EST


On Thu, 2006-07-13 at 13:12 +0530, bhuvan.kumarmital@xxxxxxxxx wrote:
> We've written a device driver in linux for a pcmcia card with usb and
> serial functionality. I need to test this driver on a dual core/SMP
> machine. We work on kernel 2.6.15.4. I have recompiled this kernel
> version on my dual core machine with the CONFIG_SMP flag set during
> menuconfig.
>
> How do i ensure that my driver is making use of the SMP feature? Do
> build my driver code i have a makefile in which i use the EXTRA_CFLAGS=
> -D__SMP__ -DCONFIG_SMP -DLINUX.

NO!

You should just use a normal KBuild makefile, and not ever add any extra
cflags....

(but you failed to provide a URL to even your Makefile but also to your
code so it's hard to give you a detailed recommendation)

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