FLG_L1_BUSY
if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
test_and_set_bit(FLG_L1_BUSY, &isac->dch.Flags);
if (test_and_clear_bit(FLG_L1_BUSY, &dch->Flags))
test_and_set_bit(FLG_L1_BUSY, &dch->Flags);