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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-01-23 09:56:00 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-01-23 09:56:00 -0300 |
| commit | 91f67b9a6472a243e2c0630f637ddff0af08038e (patch) | |
| tree | 2ba948b5b9a9c13b3494efb3a4006c15db1cbb37 /drivers/acpi/prmt.c | |
| parent | 5670ebf54bd26482f57a094c53bdc562c106e0a9 (diff) | |
| parent | 2475bf0250dee99b477e0c56d7dc9d7ac3f04117 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick fixes that went via perf/urgent.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/acpi/prmt.c')
| -rw-r--r-- | drivers/acpi/prmt.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c index 998101cf16e4..3d4c4620f9f9 100644 --- a/drivers/acpi/prmt.c +++ b/drivers/acpi/prmt.c @@ -236,6 +236,11 @@ static acpi_status acpi_platformrt_space_handler(u32 function, efi_status_t status; struct prm_context_buffer context; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + pr_err_ratelimited("PRM: EFI runtime services no longer available\n"); + return AE_NO_HANDLER; + } + /* * The returned acpi_status will always be AE_OK. Error values will be * saved in the first byte of the PRM message buffer to be used by ASL. @@ -325,6 +330,11 @@ void __init init_prmt(void) pr_info("PRM: found %u modules\n", mc); + if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + pr_err("PRM: EFI runtime services unavailable\n"); + return; + } + status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_PLATFORM_RT, &acpi_platformrt_space_handler, |