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Subject: Re: linux-next: build failure after merge of the vfio tree
To:     Stephen Rothwell <sfr@canb.auug.org.au>
Cc:     Alex Williamson <alex.williamson@redhat.com>,
        Bharat Bhushan <Bharat.Bhushan@nxp.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
References: <20201013140744.64937ecd@canb.auug.org.au>
 <276bf3f3-108b-fe60-4d17-d3f314e61db4@oss.nxp.com>
 <20201014091653.0ec43501@canb.auug.org.au>
From:   Diana Craciun OSS <diana.craciun@oss.nxp.com>
Message-ID: <7b80cbae-43e9-cb5b-ddd1-c4590fd87e18@oss.nxp.com>
Date:   Wed, 14 Oct 2020 16:43:45 +0300
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Thank you. The errors indicate that, most likely, the fsl-mc-bus patches 
from char-misc-next are missing at this point. I have added the vfio 
patches on top of linux-next (which already contains the fsl-mc-bus 
patches) and built x86_64 allmodconfig. There were no errors.

Thanks,
Diana

On 10/14/2020 1:16 AM, Stephen Rothwell wrote:
> Hi Diana,
> 
> On Tue, 13 Oct 2020 18:56:07 +0300 Diana Craciun OSS <diana.craciun@oss.nxp.com> wrote:
>>
>> Hi,
>>
>> How does it fail? What's the error?
> 
> Sorry about that:
> 
> drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c: In function 'vfio_fsl_mc_set_irq_trigger':
> drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c:121:8: error: implicit declaration of function 'fsl_mc_populate_irq_pool' [-Werror=implicit-function-declaration]
>    121 |  ret = fsl_mc_populate_irq_pool(mc_cont,
>        |        ^~~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c:122:4: error: 'FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS' undeclared (first use in this function)
>    122 |    FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS);
>        |    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_release':
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:178:9: error: implicit declaration of function 'dprc_reset_container' [-Werror=implicit-function-declaration]
>    178 |   ret = dprc_reset_container(mc_cont->mc_io, 0,
>        |         ^~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:181:6: error: 'DPRC_RESET_OPTION_NON_RECURSIVE' undeclared (first use in this function)
>    181 |      DPRC_RESET_OPTION_NON_RECURSIVE);
>        |      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:181:6: note: each undeclared identifier is reported only once for each function it appears in
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:191:3: error: implicit declaration of function 'fsl_mc_cleanup_irq_pool' [-Werror=implicit-function-declaration]
>    191 |   fsl_mc_cleanup_irq_pool(mc_cont);
>        |   ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_ioctl':
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:316:9: error: 'DPRC_RESET_OPTION_NON_RECURSIVE' undeclared (first use in this function)
>    316 |         DPRC_RESET_OPTION_NON_RECURSIVE);
>        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_mmap_mmio':
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:455:36: error: 'FSL_MC_REGION_CACHEABLE' undeclared (first use in this function)
>    455 |  region_cacheable = (region.type & FSL_MC_REGION_CACHEABLE) &&
>        |                                    ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:456:22: error: 'FSL_MC_REGION_SHAREABLE' undeclared (first use in this function)
>    456 |       (region.type & FSL_MC_REGION_SHAREABLE);
>        |                      ^~~~~~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_bus_notifier':
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:522:9: error: 'struct fsl_mc_device' has no member named 'driver_override'
>    522 |   mc_dev->driver_override = kasprintf(GFP_KERNEL, "%s",
>        |         ^~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:524:14: error: 'struct fsl_mc_device' has no member named 'driver_override'
>    524 |   if (!mc_dev->driver_override)
>        |              ^~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_init_device':
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:561:8: error: implicit declaration of function 'dprc_setup' [-Werror=implicit-function-declaration]
>    561 |  ret = dprc_setup(mc_dev);
>        |        ^~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:567:8: error: implicit declaration of function 'dprc_scan_container' [-Werror=implicit-function-declaration]
>    567 |  ret = dprc_scan_container(mc_dev, false);
>        |        ^~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:576:2: error: implicit declaration of function 'dprc_remove_devices' [-Werror=implicit-function-declaration]
>    576 |  dprc_remove_devices(mc_dev, NULL, 0);
>        |  ^~~~~~~~~~~~~~~~~~~
> drivers/vfio/fsl-mc/vfio_fsl_mc.c:577:2: error: implicit declaration of function 'dprc_cleanup' [-Werror=implicit-function-declaration]
>    577 |  dprc_cleanup(mc_dev);
>        |  ^~~~~~~~~~~~
>