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[SRU,O:gcp,4/6] idpf: Don't hard code napi_struct size

Message ID 20250112041835.79370-5-ian.whitfield@canonical.com
State New
Headers show
Series IDPF: TX timeout and crash | expand

Commit Message

Ian Whitfield Jan. 12, 2025, 4:18 a.m. UTC 
From: Joe Damato <jdamato@fastly.com>

BugLink: https://bugs.launchpad.net/bugs/2093622

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@intel.com>
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://patch.msgid.link/20241004105407.73585-1-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 49717ef01ce1b6dbe4cd12bee0fc25e086c555df)
Signed-off-by: Ian Whitfield <ian.whitfield@canonical.com>
---
 drivers/net/ethernet/intel/idpf/idpf_txrx.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.h b/drivers/net/ethernet/intel/idpf/idpf_txrx.h
index 62a9656e96e8..8a433b0f7f4e 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.h
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.h
@@ -479,7 +479,8 @@  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 {