linux-kernel - Re: [Outreachy kernel] [PATCH v2 0/5] Remove typedef declarations in staging: octeon

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Date:   Wed, 23 Oct 2019 20:43:04 +0300
From:   Aaro Koskinen <aaro.koskinen@....fi>
To:     Julia Lawall <julia.lawall@...6.fr>,
        Wambui Karuga <wambui.karugax@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devel@...verdev.osuosl.org, outreachy-kernel@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: Re: [Outreachy kernel] [PATCH v2 0/5] Remove typedef declarations in
 staging: octeon

Hi,

On Sat, Oct 12, 2019 at 08:35:19PM +0200, Julia Lawall wrote:
> On Sat, 12 Oct 2019, Wambui Karuga wrote:
> > This patchset removes the addition of new typedefs data types in octeon,
> > along with replacing the previous uses with the new declaration format.
> >
> > v2 of the series removes the obsolete "_t" notation in the named types.
> >
> > Wambui Karuga (5):
> >   staging: octeon: remove typedef declaration for cvmx_wqe
> >   staging: octeon: remove typedef declaration for cvmx_helper_link_info
> >   staging: octeon: remove typedef declaration for cvmx_fau_reg_32
> >   staging: octeon: remove typedef declartion for cvmx_pko_command_word0
> >   staging: octeon: remove typedef declaration for cvmx_fau_op_size
> >
> >  drivers/staging/octeon/ethernet-mdio.c   |  6 +--
> >  drivers/staging/octeon/ethernet-rgmii.c  |  4 +-
> >  drivers/staging/octeon/ethernet-rx.c     |  6 +--
> >  drivers/staging/octeon/ethernet-tx.c     |  4 +-
> >  drivers/staging/octeon/ethernet.c        |  6 +--
> >  drivers/staging/octeon/octeon-ethernet.h |  2 +-
> >  drivers/staging/octeon/octeon-stubs.h    | 56 ++++++++++++------------
> >  7 files changed, 43 insertions(+), 41 deletions(-)
> 
> For the series:
> 
> Acked-by: Julia Lawall <julia.lawall@...6.fr>

This series breaks the build on MIPS/OCTEON (the only actual HW using this
driver):

$ make ARCH=mips CROSS_COMPILE=mips64-linux-gnu- cavium_octeon_defconfig
$ make ARCH=mips CROSS_COMPILE=mips64-linux-gnu-
[...]
  CC      drivers/staging/octeon/ethernet.o
In file included from drivers/staging/octeon/ethernet.c:22:
drivers/staging/octeon/octeon-ethernet.h:94:12: warning: 'union cvmx_helper_link_info' declared inside parameter list will not be visible outside of this definition or declaration
      union cvmx_helper_link_info li);  
            ^~~~~~~~~~~~~~~~~~~~~
drivers/staging/octeon/ethernet.c: In function 'cvm_oct_free_work':
drivers/staging/octeon/ethernet.c:177:21: error: dereferencing pointer to incomplete type 'struct cvmx_wqe'
  int segments = work->word2.s.bufs;
                     ^~
drivers/staging/octeon/ethernet.c: In function 'cvm_oct_common_open':
drivers/staging/octeon/ethernet.c:463:30: error: storage size of 'link_info' isn't known
  union cvmx_helper_link_info link_info;
                              ^~~~~~~~~

etc.

Probably all these patches need to be reverted.

A.