[PATCH net v3] ice: use proper macro for testing bit

[Petr Oros <poros@redhat.com>]

Do not use _test_bit() macro for testing bit. The proper macro for this
is one without underline.

_test_bit() is what test_bit() was prior to const-optimization. It
directly calls arch_test_bit(), i.e. the arch-specific implementation
(or the generic one). It's strictly _internal_ and shouldn't be used
anywhere outside the actual test_bit() macro.

test_bit() is a wrapper which checks whether the bitmap and the bit
number are compile-time constants and if so, it calls the optimized
function which evaluates this call to a compile-time constant as well.
If either of them is not a compile-time constant, it just calls _test_bit().
test_bit() is the actual function to use anywhere in the kernel.

IOW, calling _test_bit() avoids potential compile-time optimizations.

The sensors is not a compile-time constant, thus most probably there
are no object code changes before and after the patch.
But anyway, we shouldn't call internal wrappers instead of
the actual API.

Fixes: 4da71a77fc3b ("ice: read internal temperature sensor")
Acked-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Petr Oros <poros@redhat.com>
---
 drivers/net/ethernet/intel/ice/ice_hwmon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_hwmon.c b/drivers/net/ethernet/intel/ice/ice_hwmon.c
index e4c2c1bff6c086..b7aa6812510a4f 100644
--- a/drivers/net/ethernet/intel/ice/ice_hwmon.c
+++ b/drivers/net/ethernet/intel/ice/ice_hwmon.c
@@ -96,7 +96,7 @@ static bool ice_is_internal_reading_supported(struct ice_pf *pf)
 
 	unsigned long sensors = pf->hw.dev_caps.supported_sensors;
 
-	return _test_bit(ICE_SENSOR_SUPPORT_E810_INT_TEMP_BIT, &sensors);
+	return test_bit(ICE_SENSOR_SUPPORT_E810_INT_TEMP_BIT, &sensors);
 };
 
 void ice_hwmon_init(struct ice_pf *pf)
-- 
2.44.2