linux-kernel - Re: [PATCH v5 2/6] staging: octeon: remove typedef in enum cvmx_helper_interface_mode

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Message-ID: <50cb7891-44ed-4229-b0df-088a701beef5@kadam.mountain>
Date:   Mon, 30 Oct 2023 14:02:34 +0300
From:   Dan Carpenter <dan.carpenter@...aro.org>
To:     Greg KH <gregkh@...uxfoundation.org>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Oliver Crumrine <ozlinux@...mail.com>, colin.i.king@...il.com,
        sumitraartsy@...il.com, u.kleine-koenig@...gutronix.de,
        geert@...ux-m68k.org, linux-kernel@...r.kernel.org,
        linux-staging@...ts.linux.dev
Subject: Re: [PATCH v5 2/6] staging: octeon: remove typedef in enum
 cvmx_helper_interface_mode_t

On Mon, Oct 30, 2023 at 07:24:37AM +0100, Greg KH wrote:
> On Sun, Oct 29, 2023 at 10:17:21AM -0700, Guenter Roeck wrote:
> > On Mon, Aug 28, 2023 at 11:39:07AM -0400, Oliver Crumrine wrote:
> > > Remove typedef in enum cvmx_helper_interface_mode_t, and rename all instances
> > > to cvmx_helper_interface_mode
> > > 
> > > Signed-off-by: Oliver Crumrine <ozlinux@...mail.com>
> > 
> > In linux-next:
> > 
> > Building mips:cavium_octeon_defconfig ... failed
> > --------------
> > Error log:
> > drivers/staging/octeon/ethernet.c: In function 'cvm_oct_common_get_stats':
> > drivers/staging/octeon/ethernet.c:204:37: error: storage size of 'rx_status' isn't known
> >   204 |         struct cvmx_pip_port_status rx_status;
> >       |                                     ^~~~~~~~~
> > drivers/staging/octeon/ethernet.c:205:37: error: storage size of 'tx_status' isn't known
> >   205 |         struct cvmx_pko_port_status tx_status;
> >       |                                     ^~~~~~~~~
> > drivers/staging/octeon/ethernet.c:205:37: warning: unused variable 'tx_status' [-Wunused-variable]
> > drivers/staging/octeon/ethernet.c:204:37: warning: unused variable 'rx_status' [-Wunused-variable]
> >   204 |         struct cvmx_pip_port_status rx_status;
> >       |                                     ^~~~~~~~~
> > drivers/staging/octeon/ethernet.c: In function 'cvm_oct_probe':
> > drivers/staging/octeon/ethernet.c:801:22: error: variable 'imode' has initializer but incomplete type
> >   801 |                 enum cvmx_helper_interface_mode imode =
> >       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~
> > drivers/staging/octeon/ethernet.c:801:49: error: storage size of 'imode' isn't known
> >   801 |                 enum cvmx_helper_interface_mode imode =
> >       |                                                 ^~~~~
> > drivers/staging/octeon/ethernet.c:801:49: warning: unused variable 'imode' [-Wunused-variable]
> > 
> > Bisect points to this patch. Bisect log attached.
> > 
> > As usual, my apologies for the noise if this has already been reported
> > and/or fixed.
> 
> It has not been reported, thanks for it, I'll go revert the offending
> commits.  And I need to figure out how to build this driver better, I
> get no build-failures from anyone for it when stuff like this happens,
> odd...

We did report it.

https://lore.kernel.org/all/CA+G9fYvVETLEtiZ=MFRrxgXpmgirVHz-tDOxhU=7_9dtmx7o5g@mail.gmail.com/

It only fails for Octeon def_configs.  Just cross compiling on ARM
isn't enough.  All the stub code is just for compile testing and doesn't
work...

regards,
dan carpenter