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Message-ID: <0ddcd3d8-6fca-dc6a-d9d8-f8df8715be95@infradead.org>
Date: Mon, 24 Jan 2022 17:29:17 -0800
From: Randy Dunlap <rdunlap@...radead.org>
To: Felix Kuehling <felix.kuehling@....com>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Alex Deucher <alexdeucher@...il.com>
Cc: ALSA Development Mailing List <alsa-devel@...a-project.org>,
KVM list <kvm@...r.kernel.org>,
Network Development <netdev@...r.kernel.org>,
linux-um <linux-um@...ts.infradead.org>,
LKML <linux-kernel@...r.kernel.org>,
amd-gfx list <amd-gfx@...ts.freedesktop.org>,
"open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
Lakshmi Sowjanya D <lakshmi.sowjanya.d@...el.com>,
sparclinux <sparclinux@...r.kernel.org>,
linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
"Tobin C. Harding" <me@...in.cc>
Subject: Re: Build regressions/improvements in v5.17-rc1
On 1/24/22 17:23, Felix Kuehling wrote:
>
> Am 2022-01-24 um 14:11 schrieb Randy Dunlap:
>> On 1/24/22 10:55, Geert Uytterhoeven wrote:
>>> Hi Alex,
>>>
>>> On Mon, Jan 24, 2022 at 7:52 PM Alex Deucher <alexdeucher@...il.com> wrote:
>>>> On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>>>>> On Sun, 23 Jan 2022, Geert Uytterhoeven wrote:
>>>>>> + /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: error: control reaches end of non-void function [-Werror=return-type]: => 1560:1
>>>> I don't really see what's going on here:
>>>>
>>>> #ifdef CONFIG_X86_64
>>>> return cpu_data(first_cpu_of_numa_node).apicid;
>>>> #else
>>>> return first_cpu_of_numa_node;
>>>> #endif
>>> Ah, the actual failure causing this was not included:
>>>
>>> In file included from /kisskb/src/arch/x86/um/asm/processor.h:41:0,
>>> from /kisskb/src/include/linux/mutex.h:19,
>>> from /kisskb/src/include/linux/kernfs.h:11,
>>> from /kisskb/src/include/linux/sysfs.h:16,
>>> from /kisskb/src/include/linux/kobject.h:20,
>>> from /kisskb/src/include/linux/pci.h:35,
>>> from
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:25:
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c: In
>>> function 'kfd_cpumask_to_apic_id':
>>> /kisskb/src/arch/um/include/asm/processor-generic.h:103:18: error:
>>> called object is not a function or function pointer
>>> #define cpu_data (&boot_cpu_data)
>>> ^
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9:
>>> note: in expansion of macro 'cpu_data'
>>> return cpu_data(first_cpu_of_numa_node).apicid;
>>> ^
>>> /kisskb/src/drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1:
>>> error: control reaches end of non-void function [-Werror=return-type]
>>> }
>>> ^
>> ah yes, UML.
>> I have a bunch of UML fixes that I have been hesitant to post.
>>
>> This is one of them.
>> What do people think about this?
>
> Does it make sense to configure a UML kernel with a real device driver in the first place? Or should we just prevent enabling amdgpu for UML with a Kconfig dependency?
>
Hi,
Your option IMO. I have seen both opinions given.
I also meant to reply that someone could just add
depends on !UML
for this device, like you are suggesting.
I'm fine with it either way.
thanks.
>
>>
>> thanks.
>>
>> ---
>> From: Randy Dunlap <rdunlap@...radead.org>
>>
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1556:9: note: in expansion of macro ‘cpu_data’
>> return cpu_data(first_cpu_of_numa_node).apicid;
>> ^~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_topology.c:1560:1: error: control reaches end of non-void function [-Werror=return-type]
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_fill_iolink_info_for_cpu’:
>> ../arch/um/include/asm/processor-generic.h:103:19: error: called object is not a function or function pointer
>> #define cpu_data (&boot_cpu_data)
>> ~^~~~~~~~~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1688:27: note: in expansion of macro ‘cpu_data’
>> struct cpuinfo_x86 *c = &cpu_data(0);
>> ^~~~~~~~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:7: error: dereferencing pointer to incomplete type ‘struct cpuinfo_x86’
>> if (c->x86_vendor == X86_VENDOR_AMD)
>> ^~
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1691:23: error: ‘X86_VENDOR_AMD’ undeclared (first use in this function); did you mean ‘X86_VENDOR_ANY’?
>> if (c->x86_vendor == X86_VENDOR_AMD)
>> ^~~~~~~~~~~~~~
>> X86_VENDOR_ANY
>>
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c: In function ‘kfd_create_vcrat_image_cpu’:
>> ../drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_crat.c:1742:11: warning: unused variable ‘entries’ [-Wunused-variable]
>> uint32_t entries = 0;
>>
>> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
>> ---
>> drivers/gpu/drm/amd/amdkfd/kfd_crat.c | 6 +++---
>> drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 2 +-
>> 2 files changed, 4 insertions(+), 4 deletions(-)
>>
>> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
>> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
>> @@ -1552,7 +1552,7 @@ static int kfd_cpumask_to_apic_id(const
>> first_cpu_of_numa_node = cpumask_first(cpumask);
>> if (first_cpu_of_numa_node >= nr_cpu_ids)
>> return -1;
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>> return cpu_data(first_cpu_of_numa_node).apicid;
>> #else
>> return first_cpu_of_numa_node;
>> --- linux-next-20220107.orig/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
>> +++ linux-next-20220107/drivers/gpu/drm/amd/amdkfd/kfd_crat.c
>> @@ -1679,7 +1679,7 @@ static int kfd_fill_mem_info_for_cpu(int
>> return 0;
>> }
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>> static int kfd_fill_iolink_info_for_cpu(int numa_node_id, int *avail_size,
>> uint32_t *num_entries,
>> struct crat_subtype_iolink *sub_type_hdr)
>> @@ -1738,7 +1738,7 @@ static int kfd_create_vcrat_image_cpu(vo
>> struct crat_subtype_generic *sub_type_hdr;
>> int avail_size = *size;
>> int numa_node_id;
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>> uint32_t entries = 0;
>> #endif
>> int ret = 0;
>> @@ -1803,7 +1803,7 @@ static int kfd_create_vcrat_image_cpu(vo
>> sub_type_hdr->length);
>> /* Fill in Subtype: IO Link */
>> -#ifdef CONFIG_X86_64
>> +#if defined(CONFIG_X86_64) && !defined(CONFIG_UML)
>> ret = kfd_fill_iolink_info_for_cpu(numa_node_id, &avail_size,
>> &entries,
>> (struct crat_subtype_iolink *)sub_type_hdr);
>>
>>
--
~Randy
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