diff options
| author | Ingo Molnar <mingo@kernel.org> | 2021-04-20 09:47:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-22 10:40:24 +0200 |
| commit | 2ab6e37feb668adf88d510ec9d240c8c46a0aa8e (patch) | |
| tree | 3a3e2a14a4a4deaa671b972b65121f5bdeffce88 /arch/x86/Kconfig | |
| parent | af0d8dadc1db6f05a3acf6151f98e822eee18b64 (diff) | |
x86/platform/uv: Fix !KEXEC build failure
[ Upstream commit c2209ea55612efac75de0a58ef5f7394fae7fa0f ]
When KEXEC is disabled, the UV build fails:
arch/x86/platform/uv/uv_nmi.c:875:14: error: ‘uv_nmi_kexec_failed’ undeclared (first use in this function)
Since uv_nmi_kexec_failed is only defined in the KEXEC_CORE #ifdef branch,
this code cannot ever have been build tested:
if (main)
pr_err("UV: NMI kdump: KEXEC not supported in this kernel\n");
atomic_set(&uv_nmi_kexec_failed, 1);
Nor is this use possible in uv_handle_nmi():
atomic_set(&uv_nmi_kexec_failed, 0);
These bugs were introduced in this commit:
d0a9964e9873: ("x86/platform/uv: Implement simple dump failover if kdump fails")
Which added the uv_nmi_kexec_failed assignments to !KEXEC code, while making the
definition KEXEC-only - apparently without testing the !KEXEC case.
Instead of complicating the #ifdef maze, simplify the code by requiring X86_UV
to depend on KEXEC_CORE. This pattern is present in other architectures as well.
( We'll remove the untested, 7 years old !KEXEC complications from the file in a
separate commit. )
Fixes: d0a9964e9873: ("x86/platform/uv: Implement simple dump failover if kdump fails")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mike Travis <travis@sgi.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 80636caee07c..3ce5b5bd1dc4 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -495,6 +495,7 @@ config X86_UV depends on X86_EXTENDED_PLATFORM depends on NUMA depends on EFI + depends on KEXEC_CORE depends on X86_X2APIC depends on PCI ---help--- |