netdev - [PATCH iwl-next v1 08/13] igc: field prep conversion

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Message-Id: <20231121211921.19834-9-jesse.brandeburg@intel.com>
Date: Tue, 21 Nov 2023 13:19:16 -0800
From: Jesse Brandeburg <jesse.brandeburg@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>,
	netdev@...r.kernel.org,
	Julia Lawall <Julia.Lawall@...ia.fr>,
	Sasha Neftin <sasha.neftin@...el.com>,
	Marcin Szycik <marcin.szycik@...ux.intel.com>
Subject: [PATCH iwl-next v1 08/13] igc: field prep conversion

Refactor igc driver to use FIELD_PREP(), which reduces lines of code
and adds clarity of intent.

This code was generated by the following coccinelle/spatch script and
then manually repaired in a later patch.

@prep@
constant shift,mask;
expression a;
@@
-((a << shift) & mask)
+FIELD_PREP(mask, a)

Cc: Julia Lawall <Julia.Lawall@...ia.fr>
Cc: Sasha Neftin <sasha.neftin@...el.com>
Reviewed-by: Marcin Szycik <marcin.szycik@...ux.intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 61db1d3bfa0b..d949289a3ddb 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -3452,8 +3452,8 @@ static int igc_write_flex_filter_ll(struct igc_adapter *adapter,
 
 	/* Configure filter */
 	queuing = input->length & IGC_FHFT_LENGTH_MASK;
-	queuing |= (input->rx_queue << IGC_FHFT_QUEUE_SHIFT) & IGC_FHFT_QUEUE_MASK;
-	queuing |= (input->prio << IGC_FHFT_PRIO_SHIFT) & IGC_FHFT_PRIO_MASK;
+	queuing |= FIELD_PREP(IGC_FHFT_QUEUE_MASK, input->rx_queue);
+	queuing |= FIELD_PREP(IGC_FHFT_PRIO_MASK, input->prio);
 
 	if (input->immediate_irq)
 		queuing |= IGC_FHFT_IMM_INT;
-- 
2.39.3