ice: field prep conversion

Refactor ice 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.

Several places I changed to OR into a single variable with |= instead of
using a multi-line statement with trailing OR operators, as it
(subjectively) makes the code clearer.

A local variable vmvf_and_timeout was created and used to avoid multiple
logical ORs being __le16 converted, which shortened some lines and makes
the code cleaner.

Also clean up a couple of places where conversions were made to have the
code read more clearly/consistently.

@prep2@
constant shift,mask;
type T;
expression a;
@@
-(((T)(a) << shift) & mask)
+FIELD_PREP(mask, a)

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

Cc: Julia Lawall <Julia.Lawall@inria.fr>
CC: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c
index 280994ee5933..f1f48b3ec6d5 100644
--- a/drivers/net/ethernet/intel/ice/ice_lag.c
+++ b/drivers/net/ethernet/intel/ice/ice_lag.c
@@ -208,8 +208,7 @@ ice_lag_cfg_fltr(struct ice_lag *lag, u32 act, u16 recipe_id, u16 *rule_idx,
 		eth_hdr = s_rule->hdr_data;
 		ice_fill_eth_hdr(eth_hdr);
 
-		act |= (vsi_num << ICE_SINGLE_ACT_VSI_ID_S) &
-			ICE_SINGLE_ACT_VSI_ID_M;
+		act |= FIELD_PREP(ICE_SINGLE_ACT_VSI_ID_M, vsi_num);
 
 		s_rule->hdr.type = cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX);
 		s_rule->recipe_id = cpu_to_le16(recipe_id);
@@ -754,9 +753,7 @@ ice_lag_cfg_cp_fltr(struct ice_lag *lag, bool add)
 		s_rule->act = cpu_to_le32(ICE_FWD_TO_VSI |
 					  ICE_SINGLE_ACT_LAN_ENABLE |
 					  ICE_SINGLE_ACT_VALID_BIT |
-					  ((vsi->vsi_num <<
-					    ICE_SINGLE_ACT_VSI_ID_S) &
-					   ICE_SINGLE_ACT_VSI_ID_M));
+					  FIELD_PREP(ICE_SINGLE_ACT_VSI_ID_M, vsi->vsi_num));
 		s_rule->hdr_len = cpu_to_le16(ICE_LAG_SRIOV_TRAIN_PKT_LEN);
 		memcpy(s_rule->hdr_data, lacp_train_pkt, LACP_TRAIN_PKT_LEN);
 		opc = ice_aqc_opc_add_sw_rules;