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| author | Lyndon Sanche <lsanche@lyndeno.ca> | 2024-05-29 20:47:44 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-05-30 11:25:55 +0300 |
| commit | 586d7e4b240ab34ce6df0e48c17e957e7303e181 (patch) | |
| tree | 1ab3880bf5a21162929c29c9f8c32095ad933a73 /drivers/platform/x86/dell | |
| parent | 46de513068f956b76d68d241a7ad6bc5576d2948 (diff) | |
| download | linux-586d7e4b240ab34ce6df0e48c17e957e7303e181.tar.xz | |
platform/x86: dell-smbios: Add helper for checking supported class
Add helper that returns true if smbios command class is supported.
Signed-off-by: Lyndon Sanche <lsanche@lyndeno.ca>
Link: https://lore.kernel.org/r/20240529174843.13226-2-lsanche@lyndeno.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/dell')
| -rw-r--r-- | drivers/platform/x86/dell/dell-smbios-base.c | 9 | ||||
| -rw-r--r-- | drivers/platform/x86/dell/dell-smbios.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/platform/x86/dell/dell-smbios-base.c b/drivers/platform/x86/dell/dell-smbios-base.c index e61bfaf8b5c4..fbdd12a7cb8d 100644 --- a/drivers/platform/x86/dell/dell-smbios-base.c +++ b/drivers/platform/x86/dell/dell-smbios-base.c @@ -350,6 +350,15 @@ void dell_laptop_call_notifier(unsigned long action, void *data) } EXPORT_SYMBOL_GPL(dell_laptop_call_notifier); +bool dell_smbios_class_is_supported(u16 class) +{ + /* Classes over 30 always unsupported */ + if (class > 30) + return false; + return da_supported_commands & (1 << class); +} +EXPORT_SYMBOL_GPL(dell_smbios_class_is_supported); + static void __init parse_da_table(const struct dmi_header *dm) { /* Final token is a terminator, so we don't want to copy it */ diff --git a/drivers/platform/x86/dell/dell-smbios.h b/drivers/platform/x86/dell/dell-smbios.h index eb341bf000c6..756c354b1eef 100644 --- a/drivers/platform/x86/dell/dell-smbios.h +++ b/drivers/platform/x86/dell/dell-smbios.h @@ -73,6 +73,7 @@ enum dell_laptop_notifier_actions { int dell_laptop_register_notifier(struct notifier_block *nb); int dell_laptop_unregister_notifier(struct notifier_block *nb); void dell_laptop_call_notifier(unsigned long action, void *data); +bool dell_smbios_class_is_supported(u16 class); /* for the supported backends */ #ifdef CONFIG_DELL_SMBIOS_WMI |