selftests: net: fix get_refill_ring_size() to use its local variable

In preparation for multi-threaded rss selftests, fix
get_refill_ring_size() to use its local `size` variable instead of
assigning to the file-global `ring_size`.

Signed-off-by: Juanlu Herrero <juanlu@fastmail.com>
Link: https://patch.msgid.link/20260909-iou-zcrx-v7-1-6b5d48a2a922@fastmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Juanlu Herrero 2026-09-09 14:51:23 -05:00 • committed by Jakub Kicinski
commit 649936a0da