Re: Build regressions/improvements in v5.17-rc1
From: Felix Kuehling
Date: Mon Jan 24 2022 - 22:14:57 EST
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@xxxxxxxxx> wrote:
On Mon, Jan 24, 2022 at 5:25 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> 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?
Regards,
Felix
thanks.
---
From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
../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@xxxxxxxxxxxxx>
---
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);