linux-kernel - [PATCH 2/3] ice: use bitmap_weighted_xor() in ice_find_free_recp_res

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Message-ID: <20251223162303.434659-3-yury.norov@gmail.com>
Date: Tue, 23 Dec 2025 11:23:01 -0500
From: "Yury Norov (NVIDIA)" <yury.norov@...il.com>
To: Tony Nguyen <anthony.l.nguyen@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Yury Norov <yury.norov@...il.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Andrew Morton <akpm@...ux-foundation.org>,
	intel-wired-lan@...ts.osuosl.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] ice: use bitmap_weighted_xor() in ice_find_free_recp_res_idx()

Use the right helper and save one bitmaps traverse. 

Signed-off-by: Yury Norov (NVIDIA) <yury.norov@...il.com>
---
 drivers/net/ethernet/intel/ice/ice_switch.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c
index 84848f0123e7..903417477929 100644
--- a/drivers/net/ethernet/intel/ice/ice_switch.c
+++ b/drivers/net/ethernet/intel/ice/ice_switch.c
@@ -4984,10 +4984,8 @@ ice_find_free_recp_res_idx(struct ice_hw *hw, const unsigned long *profiles,
 			  hw->switch_info->recp_list[bit].res_idxs,
 			  ICE_MAX_FV_WORDS);
 
-	bitmap_xor(free_idx, used_idx, possible_idx, ICE_MAX_FV_WORDS);
-
 	/* return number of free indexes */
-	return (u16)bitmap_weight(free_idx, ICE_MAX_FV_WORDS);
+	return (u16)bitmap_weighted_xor(free_idx, used_idx, possible_idx, ICE_MAX_FV_WORDS);
 }
 
 /**
-- 
2.43.0