Re: [Outreachy kernel] Re: [PATCH v2 1/5] staging: octeon: remove typedef declaration for cvmx_wqe

From: Wambui Karuga
Date: Thu Oct 24 2019 - 06:00:34 EST


On Thu, Oct 24, 2019 at 07:26:59AM +0200, Julia Lawall wrote:
> > If you're making significant changes to this driver, please test them
> > using the MIPS cavium_octeon_defconfig which is where this driver is
> > actually used.
> >
> > This driver has broken builds a few times recently which makes me very
> > tempted to ask that we stop allowing it to be built with COMPILE_TEST.
> > The whole octeon-stubs.h thing is a horrible hack anyway...
>
> Wambui,
>
> Please figure out what went wrong here. Are there two sets of typedefs
> that should have been updated?
>
I managed to reproduce these build errors and finally noticed that the
"octeon-stubs.h" header is only included when CONFIG_CAVIUM_OCTEON_SOC
is not defined, therefore compiling properly for COMPILE_TEST but will
actually fail when compiled with CONFIG_CAVIUM_OCTEON_SOC is set since
the functions will try to use the definitions in
arch/mips/include/asm/octeon/ that don't have the changes.

Paul, please tell me if this is correct?

Thanks,
wambui

> Others,
>
> Would it be reasonable to put the information about how the driver should
> be compied in the TODO file? git grep cavium_octeon_defconfig in the
> octeon directory turns up nothing.
>
> thanks,
> julia
>
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