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 <ivec...@redhat.com>
Reviewed-by: Alexander Lobakin <aleksander.loba...@intel.com>
Signed-off-by: Petr Oros <po...@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
