linux-kernel - [net-next v3] idpf: Don't hard code napi

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Message-Id: <20241004105407.73585-1-jdamato@fastly.com>
Date: Fri,  4 Oct 2024 10:54:07 +0000
From: Joe Damato <jdamato@...tly.com>
To: netdev@...r.kernel.org
Cc: aleksander.lobakin@...el.com,
	przemyslaw.kitszel@...el.com,
	horms@...nel.org,
	kuba@...nel.org,
	Joe Damato <jdamato@...tly.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	intel-wired-lan@...ts.osuosl.org (moderated list:INTEL ETHERNET DRIVERS),
	linux-kernel@...r.kernel.org (open list)
Subject: [net-next v3] idpf: Don't hard code napi_struct size

The sizeof(struct napi_struct) can change. Don't hardcode the size to
400 bytes and instead use "sizeof(struct napi_struct)".

Suggested-by: Alexander Lobakin <aleksander.lobakin@...el.com>
Signed-off-by: Joe Damato <jdamato@...tly.com>
---
 drivers/net/ethernet/intel/idpf/idpf_txrx.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.h b/drivers/net/ethernet/intel/idpf/idpf_txrx.h
index f0537826f840..9c1fe84108ed 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.h
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.h
@@ -438,7 +438,8 @@ struct idpf_q_vector {
 	__cacheline_group_end_aligned(cold);
 };
 libeth_cacheline_set_assert(struct idpf_q_vector, 112,
-			    424 + 2 * sizeof(struct dim),
+			    24 + sizeof(struct napi_struct) +
+			    2 * sizeof(struct dim),
 			    8 + sizeof(cpumask_var_t));
 
 struct idpf_rx_queue_stats {
-- 
2.34.1