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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2022-02-11 08:09:29 -0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-02-25 20:49:29 +0100 |
| commit | d445571fa369cf08148dcd9bce563d5fae14fcd7 (patch) | |
| tree | 7e2a5c28c83ea07941285b0eb275fdd91529a09a /drivers/acpi/fan.h | |
| parent | 00ae053a0533155d830da27070a931e6fa747327 (diff) | |
ACPI: fan: Optimize struct acpi_fan_fif
We don't need u64 to store the information about _FIF. There are two
booleans (fine_grain_ctrl and low_speed_notification) and one field
step_size which can take value from 1-9. There are no internal users
of revision field. So convert all fields to u8, by not directly
extracting the _FIF info the struct. Use an intermediate buffer to
extract and assign.
This will help to do u32 math using these fields. No functional
changes are expected.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/fan.h')
| -rw-r--r-- | drivers/acpi/fan.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h index 36c5e1a57094..6cbb4b028da0 100644 --- a/drivers/acpi/fan.h +++ b/drivers/acpi/fan.h @@ -30,10 +30,10 @@ struct acpi_fan_fps { }; struct acpi_fan_fif { - u64 revision; - u64 fine_grain_ctrl; - u64 step_size; - u64 low_speed_notification; + u8 revision; + u8 fine_grain_ctrl; + u8 step_size; + u8 low_speed_notification; }; struct acpi_fan { |